中文名 | 拉丁名 | 科名 | 基名 | 发表年代 |
一口血秋海棠 | Begonia picturata | Begoniaceae | | 2005 |
Begonia picturata (sect. Coelocentrum, Begoniaceae), a new species from limestone areas in Guangxi, China 作者:Yan LIU, Shin-Ming KU, Ching-I PENG 文献:Bot. Bull. Acad. Sin. 46(4): 367 (-376; figs. 1-4). 2005. 形态描述:Plant monoecious, epipetric, perennial, rhizomatous. Rhizome stout, 5-15 cm long, 0.6-1.2 cm thick, internodes 0.8-2(-3) cm long, brown or reddish brown, villous. Stipules caducous, ovate-triangular to lanceolate-triangular, ca. 10-23 mm long, 6-10 mm wide, greenish or reddish hyaline, herbaceous, weakly to strongly keeled, abaxially villous (midrib more densely so), margin ciliate, apex aristate, arista 1-3 mm long, hair-like. Leaves 2-8, alternate, simple, asymmetric, unlobed, ovate to widely ovate, rarely suborbicular, base strongly oblique-cordate, margin inconspicuously denticulate and ciliolate, apex shortly acuminate, (7-)10-15(-20) cm long (basal lobes included), (5.5-)7-11 (-14) cm wide, adaxially dark green or brown (abaxially red), adorned with a wide white, greenish-white, or pale green ring (abaxially pale green) in the middle (Figure 2: D) or with digitate dark brown bands along main veins and at leaf margin, pale green, yellowish green to whitish else where (Figure 2: B), sometimes only maculate in intercostal areas (Figure 2: C), texture thickly chartaceous, surface somewhat rugose, adaxially villous-setose or tomentosesetose (trichomes 1-2 mm long, whitish-hyaline or reddish, with a swollen base), abaxially short villous, particularly so on veins; venation basally 6-7-palmate, midrib distinguishable, veins pinnate along midrib, with 1-3 major lateral veins on each side, other primary veins branching dichotomously or nearly so, tertiary veins weakly percurrent or reticulate, divergence angle 60-85°, minor veins reticulate, all veins on abaxial surface prominently raised; petioles terete, 7-17 cm long, 3-6 mm thick, brownish, villous. Inflorescences axillary, 1-3, arising directly from rhizome, dichasial cymes, branched 2-4 times, flowers 5-16 per cyme; staminate flowers 3-9, carpellate flowers 1-8; peduncle well developed, terete, erect, 10-16 cm long, 2-4 mm thick, reddish brown or greenish, villous (trichomes 3-4 mm long, white or pinkish); pedicels hispid-villous (trichomes 2-3 mm long, reddish), ascending in staminate flowers (1-3 cm long), horizontal to pendent in carpellate flowers (1-1.7 cm long). Bracts caducous, ovate, oblong or rounded, margin ciliate, apex acute, obtuse or rounded, 4.5-15 mm long, 4.5-8 mm wide, greenish or reddish, herbaceous. Staminate flowers: tepals 4 (rarely 6), margin entire or nearly so, outer 2 suborbicular to oblong, base rounded or slightly cordate, apex rounded, 14-18 (-22) mm long, 14-17 mm wide, abaxially pinkish or whitish, villous-setose, adaxially pinkish or white; inner 2 (rarely 4) tepals obovate, oblong or oblanceolate, base cuneate, apex obtuse or rounded, ca. 10-15(-19) mm long, 4-5.5 mm wide, white, glabrous; androecium zygomorphic, subspherical, stamens ca. 20-40, golf club shaped; filaments subequal, ca. 1-2 mm long, shortly fused at base; anthers 2-locular, slightly compressed, oblong-obovoid, apex slightly emarginate, ca. 1.3-1.6 mm long, 0.8-1 mm wide, yellow with red margin along anther sacs. Carpellate flowers: tepals 3, margin entire, usually caducous (if persistent, not thickened in fruit); outer 2 tepals suborbicular to widely ovate, 13-16 mm long, 14-18 mm wide, abaxially pinkish or whitish, red villous-setose or hispid-setose; inner tepal obovate, base cuneate, apex obtuse or rounded, ca. 9-11 mm long, 4-6 mm wide, white, glabrous; ovary trigonousellipsoid, ca. 7-11 mm long, 5-7 mm across (wings excluded), greenish, red villous-setose or hispid-setose (trichomes conically thickened), 3-winged; wings unequal, sparsely red villous-setose; lateral wings narrower, ca. 2-4 mm tall; abaxial wing crescent shaped, suborbicular or subrectangular, ca. 5-7 mm tall, 7-12 mm wide; locule 1, placentation intruded parietal (axile near base); placentae 3, each 2-branched; styles 3, fused at base, yellow, ca. 3-3.5 mm long, apically split and C shaped; stigmas in a spiral band and papillose all around. Fruit capsules, dehiscent, nodding, greenish when fresh, 10-15 mm long, 6-8 mm across (wings excluded), apex with persistent styles; lateral wings 2-6 mm tall; abaxial wing crescent shaped, suborbicular or subrectangular, 6-9 mm tall. Seeds numerous, brown, usually widely ellipsoid or sometimes ellipsoid, 0. 45-0.55 mm long, 0.3-0.35 mm thick, chalazal end rounded, micropylar end obtuse, outer periclinal walls of mature seeds concave; collar cells elongated, straight, nearly rectangular, 11-13 cells in a ring, 1/3-1/2 as long as seed; anticlinal walls between collar cells raised, straight or slightly undulate; testa cell nearly isodiametric-polygonal. Somatic chromosome number, 2n = 30 (Figure 3). 分布:Guangxi: Baise Shi, Jingxi Xian, Dizhou Xiang, Guwen Cun 性质:sp. nov. 模式引证:Guangxi: Baise Shi, Jingxi Xian, Dizhou Xiang, Guwen Cun, c. 760m, 23°3'46”N, 106°17'45”E, Yan Liu L1199, 2005-05-03, holotype: IBK, isotype: HAST |
睫托秋海 | Begonia pingbienensis | Begoniaceae | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 258, pl. 7 (1995). 形态描述:多年生草本。根状茎横走或斜出,圆柱形,直径3-6毫米,具多数细长纤维状之根。茎高30-60厘米,方形,带棱,扭曲,匍伏,节处生出不定根,被褐色长硬毛。基生叶未见;茎生叶互生,具长柄;叶片两侧不相等,轮廓卵形,长6.5-11厘米,宽4-6.8厘米,先端尾状渐尖,基部偏斜,呈斜心形,窄侧圆形或近截形,宽侧向下延伸达1-2厘米,呈耳状,边缘有大小不等和不规则三角形浅齿,齿尖带短芒,有时具浅裂,上面深绿色,散生短硬毛,下面淡绿色,沿主脉和侧脉被短硬毛,脉明显,窄侧4(-5)条,宽侧5-6条;叶柄长5-9.5厘米,有棱,被卷曲短柔毛;托叶膜质,先端渐尖,边缘被睫毛,早落。花粉红色,2(-4)朵,聚伞状;花梗长1-2厘米,和花序梗均被柔毛;苞片早落;雄花:花被片4,外轮2枚宽卵形,长7-8毫米,宽4-5毫米,先端圆,外面被长柔毛,内轮2枚卵形,比外轮短小;雄蕊多数,花丝离生,花药长圆形;雌花:花柱3,离生,柱头扭曲呈螺旋状,并带刺状乳头。蒴果被长硬毛,具不等3翅,2个近等大,1翅稍小;种子极多数,小,长圆形,浅褐色,平滑。 分布:Yunnan(云南): Pingbian (屏边) 性质:sp. nov. |
扁果秋海棠 | Begonia platycarpa | BEGONIACEAE | | 2005 |
世界秋海棠属侧膜组植物新资料 作者:税玉民, 陈文红 文献:Acta Bot. Yunnan. 27(4): 368, fig. 9 (2005). 形态描述:Herbs, rhizomatous. Rhizome 4-10 cm, 2-3 mm in diam., sparsely hirsute, hairs 2-3 mm; internodes 5-9 mm. Leaves all basal; stipules mostly persistent, reflexed, triangular, 6-8 × 3-4 mm, adaxially densely pilose; petiole 5-10 cm, hirsute (hairs 3-5 mm); blade very broadly ovate, 6-8 × 4-5.5 cm, papery, abaxially sparsely pilose (hairs 3-4 mm) on veins and glabrous on other parts, adaxially densely pilose (hairs ca. 3 mm), basally 6-veined, base obliquely deeply cordate, margin serrulate and with cilia 3-4 mm, apex obtuse. Inflorescences 12-15 flowers in a dichasial cyme; peduncle 5-8 cm, sparsely pilose (hairs ca. 3 mm); bracts obovate or ovate, 4-7 × 2-3.5 mm, abaxially sparsely pilose, margin ciliate, apex rounded or acute. Staminate flowers: tepals 4, outer 2 pink, suborbicular, 1-1.5 cm in diam., apex with red stripes, outside sparsely pilose, inner 2 white or pinkish, obovate, 1.2-1.6 × 4-6 mm; stamens numerous; filaments free, 1-1.1 mm; anthers yellow, obovoid, 1.2-1.3 × 0.5-0.7 mm, apex subemarginate. Pistillate flowers: tepals (2 or)3(or 4), pink, outer 2 orbicular, 1-1.3 cm in diam., apex with red stripes, outside sparsely pilose (hairs ca. 2 mm), inner pinkish, obovate, 0.8-1.1 × 3-5 mm; ovary broadly ovoid-ellipsoid, 3-winged, sparsely pilose (hairs ca. 2 mm), 1-loculed with parietal placentation; styles 3, ca. 2 mm, base slightly fused, stigmas spirally twisted. Capsule nodding, orbicular, compressed, 7-8 mm in diam., glabrescent, styles persistent; wings 3, equal, lunate, 1.5-2.2 mm. Fl. Mar-Jun. 分布:Yunnan(云南): Guangnan(广南) 性质:sp. nov. |
多毛秋海棠 | Begonia polytricha | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 275, fig. 21 (1995). 形态描述:Herbs, 20-30 cm tall. Rhizomes elongate, 6-8 mm in diam. Stems densely brown hirsute. Leaves basal and cauline; stipules caducous, ovate, membranous, margin ciliate, apex acuminate; petiole (3-)4-12 cm, densely brown hirsute; blade ovate, asymmetric, 6-7 × 4-5 cm, abaxially sparsely hispidulous, adaxially long hirsute, base oblique, cordate, margin dentate, shallowly lobed, divided to 1/3 of leaf length, apex shortly caudate. Inflorescences densely brown hirsute; peduncle 1-3 cm; bracts triangular-lanceolate, 4-5 × ca. 3.5 mm, membranous, margin ciliate, apex acuminate. Staminate flowers: pedicel ca. 1 cm; tepals 4, outer 2 oblong-ovate, 9-13 × 7-10 mm, abaxially brown hirsute, inner 2 oblong, ca. 6 × 1.5-2 mm; stamens numerous; filaments free, ca. 1.5 mm; anthers oblong, ca. 0.8 mm, apex obtuse. Pistillate flowers: pedicel ca. 1 cm; tepals 5, orbicular to narrowly oblong, largest ca. 10 × 9 mm, abaxially hirsute; ovary densely brown hirsute. Capsule unknown. Fl. Oct. 分布:Yunnan(云南): Luchun (绿春) 性质:sp. nov. |
假大新秋海棠 | Begonia pseudodaxinensis | Begoniaceae | | 2006 |
Four new species of Begonia sect. oelocentrum (Begoniaceae) from limestone areas in Guangxi, China 作者:Shin-Ming KU, Yan LIU, Ching-I PENG 文献:Bot. Stud. (Taipei) 47(2): 211 (-214; figs. 3-6). 2006. 形态描述:Herbs, monoecious; epipetric; perennial; rhizomatous. Rhizome stout, distinctly woody when older, 10-30 cm or longer, (6-)11-15(-30) mm thick, internodes 6-12 mm long, nearly glabrous. Stipules deciduous, ovate-triangular, subcucullate to cucullate, 10-20 mm long, 7-18 mm wide, weakly keeled, nearly glabrous, margin more or less involute, entire and eciliate, or sometimes ciliate, apex obtuse or emarginate, aristate, arista 1-2 mm long, hairlike. Leaves 2-7, alternate, simple, asymmetric, unlobed, broadly ovate or suborbicular, base deeply cordate, margin denticulate and ciliolate, apex shortly acuminate or acute, (16-)20-30(-38) cm long (basal lobes included), (12-)15-20(-26) cm wide, green, without maculation (but with white maculation in seedlings), texture herbaceous, surface slightly rugose, adaxially sparsely setose (trichomes 0.2-0.6 mm long), abaxially sparsely shortly pilose on major veins; venation basally palmate, veins (6 or )7 or 8, midrib distinct, with 1-3 major lateral veins on each side, other primary veins branching dichotomously or nearly so, tertiary veins loosely reticulate and weakly percurrent, forming a divergence angle of 60-75° to major veins, minor veins reticulate, all veins on abaxial surface raised; petiole terete, (15-)20-30(-35) cm long, 4.5-7 mm thick, greenish, reddish at base, sparsely reflexed pilose. Inflorescences axillary, 1 or 2, arising directly from rhizome, flowers slightly fragrant, 25-57, in dichasial cymes, cymes branched 3-6 times; first staminate flowers opening before elongation of peduncle, staminate flowers 20-50, carpellate flowers 4-7; peduncle well developed, terete, erect or ascending, 14-28 cm long, 3-5 mm thick, greenish, subglabrous or sparsely pilose. Bracts caducous, widely ovate to rounded, margin denticulate and ciliate, 2-5.5 mm long, 2-5 mm wide, greenish, membranaceous. Staminate flowers: pedicel 10-20(-30) mm long, pilose; tepals 4, outer 2 suborbicular, base rounded or slightly cordate, margin entire, eciliate, apex rounded, 15-21 mm long, 18-23 mm wide, pinkish or whitish, abaxially sparsely pilose; inner 2 tepals oblong or obovate, apex obtuse, 6-10 mm long, 4-7 mm wide, white, glabrous; androecium zygomorphic, subglobose, stamens 28-40, golf club shaped; filaments subequal, 1.5-2 mm long, nearly free; anthers ± ascending, locules 2, slightly compressed, oblong-obovoid or shortly so, apex of connective slightly emarginate, 1-1.5 mm long, 0.8-1 mm wide, yellow. Carpellate flowers: pendent, pedicel 13-19 mm long, bracteole absent; tepals 3, caducous, if persistent not thickened in fruit, outer 2 tepals suborbicular or oblate, margin entire, eciliate, 11-14.5 mm long, 14-17 mm wide, pinkish, glabrous or subglabrous; inner tepal oblong or obovate, 5-10 mm long, 3-4 mm wide, white, glabrous; ovary trigonous ellipsoid or ovoid-ellipsoid, 8-10 mm long, 3-5.5 mm thick (wings excluded), with or without few pilose trichomes (0.3-1 mm long), 3-winged; wings equal or subequal; abaxial wing crescent-shaped or subrectangular, 4-5 mm tall, 9-11 mm wide; locule 1, placentation intruded parietal from lower 1/4 of ovary to summit; placentae 3, each 2-branched; styles 3, fused in lower 1/4, yellow, ca. 2-4 mm long, apically C-shaped; stigmatic band slightly spiraled. Capsule nodding, stipe 20-25 mm long, fruit body 13-14 mm long, 5-6 mm thick, greenish or reddish when fresh, apex with persistent styles; abaxial wing 4-7 mm tall. Seeds numerous, brown, ovoid-ellipsoid or ellipsoid, 0.4-0.48 mm long, 0.23-0.29 mm thick, chalazal end rounded, micropylar end obtuse or slightly constricted, outer periclinal walls of mature seeds concave; collar cells elongated, straight, nearly rectangular, 11-13 cells in a ring, occupying 1/3-1/2 of seed length. Somatic chromosome number, 2n = 30 (Figure 3). 分布:Guangxi: Chungzuo Shi, Daxin Xian, Naling Xiang, along province road 316, c. 400m. Type specimens pressed from plants in cultivation 性质:sp. nov. 模式引证:Guangxi: Chungzuo Shi, Daxin Xian, Naling Xiang, along province road 316, c. 400m. Type specimens pressed from plants in cultivation, 22°55'9”N, 107°1'11”E, Ching-I Peng, Wai-Chao Leong, Shin-Ming Ku & Yan Liu 19747-A, 2005-01-26, holotype: HAST |
假厚叶秋海棠 | Begonia pseudodryadis | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 276, fig. 22 (1995). 形态描述:Herbs, rhizomatous. Rhizomes creeping, 1-1.6 cm in diam.; internodes short. Leaves all basal; stipules ovate; petiole 5-16 cm, glabrous; blade abaxially reddish brown, adaxially with many pale, oval spots of various sizes between veins and usually with a broad pale band along midvein against dark green background, strongly obliquely ovate, 5-15 × 4-8 cm, subleathery, both surfaces glabrous, basally 6- or 7-veined, base deeply cordate, margin subentire, sometimes shallowly repand or angularly lobed, apex acuminate to caudate-acuminate. Inflorescences with 4-15 flowers in a dichasial cyme; peduncle 6-20 cm; bracts oblong or elliptic. Staminate flower: pedicel 1.2-1.6 cm; tepals 4, pink, glabrous, outer 2 ovate to broadly ovate, inner 2 lanceolate; stamens 30-40, anthers obovoid, apex subtruncate. Pistillate flower: pedicel 1.5-2.5 cm; tepals 5, pink, outer ones rhomboid to ovate-triangular, inner ones gradually diminishing, innermost one lanceolate; ovary obovoid-oblong, glabrous, unequally 3-winged, placentae parietal; styles 3. Capsule ellipsoid, glabrous, with 3 unequal wings, abaxial wing obliquely broadly ligulate, lunate, or subrectangular. Fl. May-Sep, fr. July-Nov. 分布:Yunnan(云南): Pingbian (屏边). Yaoshan Mt. (瑶山) 性质:sp. nov. |
假癩叶秋海棠 | Begonia pseudoleprosa | Begoniaceae | | 2006 |
Four new species of Begonia sect. oelocentrum (Begoniaceae) from limestone areas in Guangxi, China 作者:Shin-Ming KU, Yan LIU, Ching-I PENG 文献:Bot. Stud. (Taipei) 47(2): 214 (-218; figs. 4, 7-8). 2006. 形态描述:Herbs, monoecious; epipetric; perennial; rhizomatous. Rhizome 20-60 cm or longer, 4-7.5 mm thick, internodes 3.5-5 mm long, brown, initially with sparely appressed hairs, glabrescent. Stipules eventually deciduous, triangular, narrowly triangular, 5-10 mm long, 3-4 mm wide, weakly keeled near apex, glabrous or with sparse minute subsessile brown glandular hairs on abaxial surface, margin entire and eciliate, apex acute, aristate, arista 1.5-3 mm long, hair-like. Leaves 5-12, alternate, simple, asymmetric, unlobed or sometimes shallowly lobed, broadly ovate to suborbicular, base shallowly cordate, margin sparsely and weakly denticulate and ciliolate, apex shortly acuminate or acute, (5-)7-9(-11) cm long (basal lobes included), (4-)5-7(-8.5) cm wide, adaxial surface entirely green, abaxial surface pale green, subcoriaceous, surface nearly flat, adaxially sparsely setulose (trichomes 0.2-0.5 mm long) or nearly glabrous, abaxially appressed hairy along major veins; venation basally palmate, veins 5 or 6, midrib distinct, with 1-3 major lateral veins on each side, other primary veins branching dichotomously or nearly so, tertiary veins weakly percurrent and reticulate, forming a divergence angle of 65-80° to major veins, minor veins obscure or not seen, major veins slightly raised or flat on adaxial surface and raised on abaxial surface; petiole terete, (5-)7-13(-20) cm long, 2-3 mm thick, brownish or brownish red, with appressed hairs. Inflorescences axillary, 1-3, arising directly from rhizome, dichasial cymes, branched 2 or 3 times, flowers 5-15; staminate flowers 3-11, carpellate flowers 1-4; peduncle well developed, terete, erect or ascending, 4-14 cm long, 1.5-2 mm thick, glabrous. Bracts caducous, lanceolate, ligulate or oblong, margin denticulate and ciliate or ciliolate, 3-7 mm long, 1.5-2.5 mm wide. Staminate flowers: pedicel 8-20(-30) mm long, glabrous or with few minute subsessile glandular hairs; tepals 4, outer 2 suborbicular, rarely oblong-ovate, base rounded or slightly cordate, margin entire, eciliate, apex rounded, 10-13(-20) mm long, 10-11(-12) mm wide, white or pinkish, glabrous or outer surface sparsely pilose; inner 2 tepals oblong, 5-13 mm long, 2.5-4.5 mm wide, white; androecium zygomorphic, subglobose, stamens (15-)20-30(-40), golf club-shaped; filaments subequal, 0.8-1.5 mm long, nearly free; anthers ± ascending, locules 2, slightly compressed, oblong-obovoid, connective apex slightly emarginate, 0.9-1.3 mm long, 0.6-0.8 mm wide, yellow. Carpellate flowers: pedicel 6.5-13 mm long, bracteole absent; tepals 3, caducous, if persistent not thickened in fruit, outer 2 tepals suborbicular, margin entire, 10-12 mm long, 12-14 mm wide, white or pinkish; inner tepal oblong or narrowly obovate, 5-8 mm long, 2.5-4 mm wide, white; ovary trigonous obovoid-ellipsoid, 7-8 mm long, 3.5-4.5 mm thick (wings excluded), with or without few pilose trichomes (0.4-0.8 mm long) and sparse, minute, subsessile, brown glandular hairs, 3-winged; wings unequal or subequal; lateral wings 1-2 mm tall; abaxial wing crescent-shape, 1.5-3 mm tall; locule 1, placentation intruded parietal from lower 1/4 of ovary to summit; placentae 3, each 2-branched; styles 3, fused in lower 1/4, yellow, ca. 3.5-4 mm long, apically C-shaped; stigmatic band slightly spiraled. Capsule nodding, stipe 6-11 mm long, fruit body 10-12 mm long, 4.5-5.5 mm thick, greenish when fresh, apex with persistent styles; lateral wings 2-2.5 mm tall; abaxial wing crescent-shaped or nearly so, 4-6 mm tall. Seeds numerous, brown, ellipsoid or obliquely triangular with obtuse apex, 0.35-0.53 mm long, 0.23-0.29 mm thick, chalazal end rounded, micropylar end obtuse or slightly constricted, outer periclinal walls of mature seeds concave; collar cells elongate, straight, nearly rectangular, 11-13 cells in a ring, 1/4-1/2 of seed length. 分布:Guangxi: Chungzuo Shi, Daxin Xian, Shuolong Zhen, Rendi Hydroelectric Power Station 性质:sp. nov. 模式引证:Guangxi: Chungzuo Shi, Daxin Xian, Shuolong Zhen, Rendi Hydroelectric Power Station, c. 250m, 22°49'10”N, 106°51'16”E, Ching-I Peng, Yan Liu, Shin-Ming Ku & Huan-Yu Chen 20335, 2005-03-14, holotype: HAST, isotype: IBK |
肿柄秋海棠 | Begonia pulvinifera | Begoniaceae | | 2006 |
Begonia pulvinifera (sect. Diploclinium, Begoniaceae), a new species from limestone areas in Guangxi, China 作者:Ching-I PENG, Wai-Chao LEONG, Shin-Ming KU, Yan LIU 文献:Bot. Stud. (Taipei) 47(3): 319 (-327; figs. 1-3, 6A-D). 2006. 形态描述:Herbs, perennial, acaulescent, monoecious. Rhizomes elongate creeping, to 2 cm thick, glabrous, nodes dense; stipules triangular, 2.8-3 cm long, 1.7-1.9 cm wide, glabrous, margin entire, apex acuminate or cuspidate, persistent. Leaves alternate, arising from rhizome; petiole greenish, to 24 cm long, 4.5-5 mm in diam., glabrous, base reddish brown, swollen; leaf blade green, peltate, ovate, slightly asymmetric, 14-21 cm long, 8-14 cm wide, glabrous, base rotund, margin entire or nearly so, apex acuminate, shortly caudate; venation palmate, nerves 9. Inflorescences axillary, cymose, taller than leaves, 17-45 cm long; peduncle pale green, reddish brown toward base, 34-37 cm long, 3-4 mm across, glabrous; bracts reddish brown, narrowly ovate, 2-2.5 cm long, 0.9-1.2 cm wide, glabrous, margin entire, apex acute to acuminate; with 12-14 staminate flowers and 2-4 pistillate flowers. Tepals pinkish, glabrous. Staminate flowers: pedicel reddish or greenish, tinged pinkish near junction with tepals, glabrous, 2.2-3.5(-4.8) cm long; tepals 4, outer 2 tepals broadly ovate, 2.3-2.8 cm long, 2.2-2.5 cm wide, base cordate, apex obtuse, inner 2 tepals oblanceolate, 1.6-1.8 cm long, 0.5-0.8 cm wide, apex obtuse; androecium actinomorphic, very slightly compressed, 5-6 mm tall, 6-9 mm across; stamens more than 100, yellow, filaments nearly free, 3-5 mm long, anthers obovoid, ca. 1 mm long, apex truncate or sub-emarginate. Carpellate flowers: pedicel reddish or greenish, tinged pinkish toward junction with flower, glabrous, 13-15 mm long; tepals 3, unequal, outer 2 tepals depressed ovate, 1.8-2 cm long, 2.4-2.6 cm wide, base cordate, apex obtuse, inner 1 tepal oblanceolate, 1.2-1.4 cm long, 4-5 mm wide; ovary greenish, tinged reddish, trigonous, unequally 3-winged, glabrous, 3-locular; placentae axile, bilamellate, styles 3, 4-4.5 mm long, fused at base; stigmas 2-cleft, in a spiraled band. Infructescences 17 to 45 cm long; capsules nodding, ca. 3.1 cm long, unequally 3-winged, abaxial wing lunate, 5 mm tall, as wide as capsule, lateral wings smaller, 2-3.5 mm tall. Seed numerous, 0.47-0.57 mm long, 0.25-0.3 mm across, chalazal end rotund or nearly flat; operculum obtuse to subtruncate. 分布:Guangxi: Baise Shi, Jingxi Xian, Huren Zhen 性质:sp. nov. |
倒鳞秋海棠 | Begonia reflexisquamosa | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 277, fig. 23 (1995). 形态描述:Herbs, 30-60 cm tall. Rhizomes 1-1.3 cm in diam. Stems 5-6 mm in diam., with dense, reflexed red scalelike hairs. Leaves basal and cauline; stipules caducous; petiole to 24 cm, ca. 5 mm in diam., reflexed red-brown scalelike hairy; blade oblate-orbicular, slightly asymmetric, to 21 × 31 cm, abaxially brown hairy, adaxially sparsely or densely hairy, venation palmate, 5-7-veined, base slightly cordate, margin coarsely serrulate, distinctly lobed, divided to 2/3 of leaf length; lobes 5 or 6, apex acuminate; lobules present. Staminate flowers: tepals 4, white. Pistillate flowers: tepals 5, white. Infructescence red-brown, 13-17 cm tall, brown scalelike hairy. Capsule nodding, oblong, 1.2-2.5 cm, 2-loculed, placentae axile, bilamellate, subequally 3-winged. Fl. Jul, fr. Aug. 分布:Yunnan(云南): Luchun (绿春). Huanglian Mt. (黄连山) 性质:sp. nov. |
突脉秋海棠 | Begonia retinervia | Begoniaceae | | 2006 |
Three new taxa of Begonia (sect. Coelocent rum, Begoniaceae) from limestone areas in Guangxi, China 作者:Ding FANG, Shin-Ming KU, Yi-Gang WEI, De-Hai QIN, Ching-I PENG 文献:Bot. Stud. (Taipei) 47(1): 106 (-109; figs. 4, 7-8). 2006. 形态描述:Herbs monoecious; epipetric; perennial; rhizomatous. Rhizome 5-15 cm or more long, (3-)5-10(-16) mm thick, internodes (2-)5-10(-15) mm long, brown, reddish brown or greenish brown, sparsely villous. Stipules eventually deciduous, narrowly to broadly triangular, rarely ovateoblong, (3-)5-11 mm long, (3-)4-9 mm wide, greenish, herbaceous, keeled or weakly keeled, with sparse minute subsessile brown glandular hairs on abaxial surface, midrib sparsely villous or glabrous, margin entire, eciliate, apex aristate, arista 2-3 mm long, hair-like. Leaves 2-9, alternate, simple, asymmetric, unlobed or rarely very shallowly angular lobed, suborbicular, base cordate, margin denticulate and ciliolate, apex obtuse, rounded, acute or shortly acuminate, (4-)8-14(-25) cm long (basal lobes included), (3.5-) 7-13(-22) cm wide, adaxially dark green, brown or dark brown (abaxially reddish or red), with white maculation (pale green abaxially) along major veins, sometimes only with some small white dots along major veins, or pale green along veins, texture thickly papery, surface rugose, adaxially pilose-setose or villoussetose (trichomes 1-1.5 mm long, whitish hyaline or reddish, with a swollen base), abaxially shortly villous, particularly on veins; venation basally (6-)7(-8)-palmate, midrib distinct, veins pinnate along midrib, with 1-3 major lateral veins on each side, other primary veins branching dichotomously or nearly so, tertiary veins loosely reticulate and percurrent, forming a divergence angle of 70-90° to major veins, minor veins reticulate, all veins on abaxial surface prominently raised; petiole terete, (3-)5-13 cm long, 2-4(-6) mm thick, brownish or brownish red, villous. Inflorescences axillary, 1-5, dichasial cymes arising directly from rhizome, 2-4(-6) times-branched, flowers 5-26(-40); staminate flowers 3-20(-30), carpellate flowers 2-6(-10); peduncle well developed, taller than leaves, terete, erect initially, then ascending or pendent, 8-21 cm long, 1.5-2.5 mm thick, brownish, reddish brown or greenish, sparsely villous or not and with sparse minute subsessile glandular hairs. Bracts caducous, recurved, broadly elliptic, oblong or obovate, margin serrulate and ciliate (with minute glandular tip), apex obtuse or nearly rounded, 1.5-11 mm long, 1-7 mm wide, greenish or brownish, membranaceous, abaxially with minute subsessile glandular hairs. Staminate flowers: pedicel 6-25 mm long, erect or ascending, with few minute subsessile glandular hairs; tepals 4, outer 2 suborbicular, oblate or obovate, base rounded, margin eciliate or occasionally ciliate below middle, apex rounded, 6-16 mm long, 7-15 mm wide, pink or pinkish white, with very sparse minute subsessile brown glandular hairs abaxially; inner 2 tepals oblanceolate, obovate or narrowly so, base cuneate, margin entire, eciliate, apex obtuse, 6-14 long, 2.5-4 mm wide, white or pinkish, glabrous; androecium zygomorphic, tilted, stamens 15-35, golf-club-shaped; filaments subequal, 1-2 mm long, base slightly fused; anthers upwardly facing, locules 2, slightly compressed, oblong-obovoid or narrowly so, apex of connective emarginate, 1-1.7 mm long, 0.7-0.8 mm wide, yellow. Carpellate flowers: pedicel 8-17 mm long, horizontal to pendent, with few minute subsessile glandular hairs, bracteole absent or rarely with 1 tiny bracteole; tepals 3, persistent and slightly thickened in fruit; outer 2 tepals suborbicular or oblate, margin entire, eciliate, 7-11 mm long, 9-13 mm wide, abaxially pinkish, with sparse minute subsessile brown glandular hairs; inner tepal narrowly obovate or obovate, base cuneate, apex obtuse, 5-10 mm long, 2.5-4 mm wide, pinkish or white, glabrous; ovary broadly trigonous-ovoid or obovoid, ventral surface distinctly convex, 6-9 mm long, 4-5 mm thick (wings excluded), sometimes shortly beaked at apex, greenish white or reddish white, crisped villous (trichomes 0.5-2 mm long, with a small glandular tip) and covered with sparse minute subsessile brown glandular hairs; wings 3, unequal; lateral wings narrower, curved along length of fruit body, 1-1.5 mm tall; abaxial wing obliquely triangular or ligulate, rarely obovate-oblong, 3-8 mm tall, 4-6 mm wide; locule 1, placentation intruded parietal (axile at base); placentae 3, each 2-branched; styles 3, slightly tilted, fused at base, apically C-shaped; stigmatic band slightly spiraled. Capsule nodding, stipe 8-27 mm long, greenish or reddish when fresh, 7-11 mm long, 5-8 mm thick (wings excluded), apex with persistent styles and tepals; lateral wings 1.5-4 mm tall; abaxial wing obliquely triangular or ligulate, rarely obovate-oblong, (7-)10-15 mm tall, 5-9(-11) mm wide. Seeds numerous, brown, ellipsoid or broadly so, 0.45-0.52 mm long, 0.25-0.32 mm thick, chalazal end rounded, micropylar end obtuse or slightly constricted, outer periclinal walls of mature seeds concave; collar cells elongated, straight, nearly rectangular, (8-)9-12 cells in a ring, occupying 1/4-2/3 of seed length. Somatic chromosome number, 2n = 30 (Figure 3: C). 分布:Guangxi: Du'an Xian, Xiao Xiang 性质:sp. nov. |
红叶秋海 | Begonia rhodophylla | Begoniaceae | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 260, pl. 8 (1995). 形态描述:多年生草本。根状茎球形,直径1-1.5厘米,周围发出多数纤维状之根。地上茎短缩,直立,高3-5厘米,粗1-2毫米,仅具1-2叶并常无茎。基生叶1-2,具长柄;叶片两侧不相等,轮廓长卵形或卵状长圆形,长7-16.5厘米,宽5.4-12.5厘米,先端渐尖,基部偏斜,窄侧圆形,宽侧下延伸长1-1.2厘米,呈宽耳状,边缘具不规则浅疏带短芒的锐齿和不规则5-7浅裂,上面红褐色,散生带白色略卷曲刺毛,下面色淡,被白色卷曲刺毛,在叶脉基部较密,掌状6-7条脉;叶柄长7-20厘米,幼时密被淡褐色卷曲长毛,逐渐脱落减少;托叶膜质,早落;茎生叶与基生叶同形,但稍小。花葶高11-15厘米,带红色,疏被褐色卷曲长毛,逐渐脱落减少;花6-8朵,呈聚伞状;花梗长8-18毫米,花序梗和花梗均无毛;苞片1-3,膜质,淡褐色,长圆形,长约8毫米,宽约5毫米,先端急尖,边有带芒之齿,外面有长柔毛;雄花:花被片4,外轮2枚大,宽卵形,长8-10毫米,宽5-6毫米,先端圆,外面有长柔毛,内轮2枚小,长圆形,长约5毫米,宽约1.5毫米,先端圆;雄蕊多数,花丝离生,长0.5-1毫米,花药长圆形或倒卵长圆形,长约1毫米;雌花:花被片3(-4),外轮2枚大,宽卵形,长8-10毫米,宽6-7毫米,先端圆,有明显脉纹,内轮花被片1,长卵形,长5-6毫米,宽2.5-3毫米,先端圆;子房外面被长柔毛,3室,中轴胎座,每室胎座具2裂片,具不等3翅;花柱3,离生,长约2毫米,柱头圆球形。蒴果具不等大3翅,1个特大镰刀形,长可达2.3厘米,宽约8毫米,另2个较小或很小,变化较大,无毛或近无毛;种子极多数,长圆形或卵球形,淡褐色,长1-1.6毫米,无毛。花期8-9月,果期9月开始。 分布:Yunnan(云南): Lunan (路南). Changhu (长湖) 性质:sp. nov. |
喙果秋海棠 | Begonia rhynchocarpa | BEGONIACEAE | | 2005 |
世界秋海棠属侧膜组植物新资料 作者:税玉民, 陈文红 文献:Acta Bot. Yunnan. 27(4): 370 (2005). 形态描述:Herbs, rhizomatous. Rhizomes creeping, 1-2 mm in diam. Leaves basal; stipules lanceolate; petiole 5.5-10 cm, villous; blade ovate, 6-7 × 4.5-5 cm, slightly rugose, base slightly and obliquely cordate, margin remotely serrate. Inflorescences with 4-6 flowers in a dichasial cyme; peduncle 4-5.5 cm. Staminate flowers: tepals 4, red, outer 2 ovate, ca. 1 × 1.1-1.2 cm, inner 2 elliptic, apex slightly emarginate. Pistillate flowers: pedicels ca. 7 mm; tepals 3, pinkish, glabrous, outer 2 broadly obovate, 9-10 × 8-9 mm, inner 1 elliptic, ca. 6 × 3 mm; ovary narrowly trigonous, 1-loculed with parietal placentation; styles 3, ca. 3 mm; stigmas reniform, 0.8-0.9 mm. Capsule nodding, narrowly trigonous, ca. 12 × 2-3 mm; wings 3, equal, 1-1.5 mm. Fl. Jan-May. 分布:Yunnan(云南): Hekou(河口), Nanxi(南溪) 性质:sp. nov. |
榕江秋海棠 | Begonia rongjiangensis | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 279 (1995). 形态描述:Herbs, deciduous. Tubers globose, 5-8 mm in diam. Leaves basal, 2-5; stipules caducous; petiole 4-9.5 cm, glabrous; blade asymmetric, narrowly ovate, 8.5-11 × 5.5-9.5 cm, glabrous, venation palmate, 5-7-veined, base oblique, slightly cordate, margin shallowly serrate, sometimes biserrate, apex acuminate. Inflorescence 15-22 cm tall, glabrous; flowers red; pedicel 3-8(-10) mm, glabrous; bracts caducous, lanceolate, ca. 3 mm. Staminate flowers: tepals 4, outer 2 depressed-ovate, 6-8 × 6-7 mm, abaxially villous, inner 2 oblong, 6-8 × 1-2 mm; stamens numerous; filaments fused to ca. 1 mm at base; anthers oblong, 1-2 mm, apex emarginate. Pistillate flowers: tepals 2, broadly obovate, 7-8 × 6-7 mm, apex emarginate; ovary oblong, pilose, 3-winged; abaxial wing oblate-triangular, ca. 10 × 5 mm, apex acute; lateral wings smaller, lunate, 1-2 mm; styles 3; stigma globose. Fl. Aug. 分布:Guizhou(贵州): Rongjiang (榕江), Yueliang Mt. (月亮山) 性质:sp. nov. |
玉柄秋海棠 | Begonia rubinea | Begoniaceae | | 2005 |
Begonia rubinea (sect. Platycentrum, Begoniaceae), a new species from Guizhou, China 作者:Hong-Zhe LI, Hong MA, Kai-Yun GUAN, Ching-I PENG 文献:Bot. Bull. Acad. Sin. 46(4): 377 (-383; figs. 1-4). 2005. 形态描述:Herbs, perennial, acaulescent, monoecious. Rhizomes branched, creeping, internodes short, rooting at nodes. Stipules rose pink, membranous, glabrous, triangular, 5-7 mm long, 4-7 mm wide, margin entire, apex acuminate. Leaves 3 to many, all basal; petiole 13-31 cm long, rubyred, glabrous; blade thinly coriaceous, obovate, 3-9 cm long, 2-6 cm wide, base obliquely cordate, margin irregularly crenate, apex acuminate, adaxial surface emerald colored, sparsely white tribuloid when young, gradually glabrescent, veins wine colored, abaxial surface rufous, palmately 6-7 nerved, nerves sparsely rufous tribuloid. Inflorescence of symmetric dichasial cyme, flowers 3-5 in the cyme; peduncle 9-14 cm long, ruby-red, nearly glabrous; bract subulate, 10 mm long, 3 mm wide. Staminate flowers: pedicel ca. 7 mm long, pink; tepals 4, pink, in two whorls, outer two broadly ovate, 14-18 mm long, 13-15 mm wide, pilose outside; inner two lanceolate, 12-14 long, 5-6 mm wide; androecium zygomorphic, stamens 15-30, mostly pointing upward, filaments fused below into a distinct androphore 2-3 mm long. Carpellate flowers: pedicel 7-12 mm long, pink; tepals 5, pink, ovate, sparsely pilose outside; styles 2, connate below middle; stigmas bifid, helically contorted, papillate; ovary 2-locular. Capsule obovate-oblong, 7-8 mm long; wings 3, unequal, abaxial one ligulate, apex obtuse, glabrous, other two narrower, crescent-shaped, nearly in one plane. Seeds many, brown. 分布:Guizhou: Xishui Xian, Xishui National Reserve of Evergreen Arbor Forest, Changqiangou 性质:sp. nov. |
藨状秋海棠 (匍地秋海棠 匍状秋海棠) | Begonia ruboides | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 260, fig. 9 (1995). 形态描述:Herbs, prostrate. Rhizomes absent. Stems rooting at nodes. Leaves basal; stipules oblong, 5-6 mm, margin entire, apex acuminate; petiole 2-6.5 cm, densely brown hirsute; blade orbicular or broadly ovate, asymmetric, 2.5-6 × 2-5 cm, abaxially hirsute, adaxially red setose, venation palmate, 6- or 7-veined, base oblique, shallowly cordate, margin shallowly and remotely denticulate, apex rounded. Inflorescences hirsute; bracts ovate-lanceolate, 8-10 mm, glabrous or abaxially hairy, apex acuminate. Staminate flowers: pedicel 1-2 cm; tepals 4, white, outer 2 broadly ovate, ca. 1.5 × 1.4 cm, inner 2 oblong-obovate, ca. 1 cm × 5-6 mm; stamens numerous; filaments free, ca. 1.2 mm; anthers oblong, ca. 0.9 mm. Pistillate flowers: tepals 4 (from protologue, requiring confirmation), white, outer 2 broadly ovate, 8-10 mm, inner 2 oblong; ovary sparsely hairy, 3-loculed, placentae axile, bilamellate; styles 3, fused at base; stigmas 2-cleft, U-shaped. Capsule nodding, ovoid, unequally 3-winged; abaxial wing narrowly triangular, ca. 1 cm; lateral wings smaller, broadly triangular. Fl. Mar-May, fr. Jun-Jul. 分布:Yunnan(云南): Pingbian (屏边),Yaoshan Mt. (瑶山). Chongtou (冲头), Dazhupeng (大竹棚) 性质:sp. nov. |