中文名 | 拉丁名 | 科名 | 基名 | 发表年代 |
大新秋海棠 | Begonia daxinensis | Begoniaceae | Begonia zhangii | 2004 |
Notes on Begonia (sect. Coelocentrum, Begoniaceae) from Guangxi, China, with the report of two new species 作者:Shin-Ming KU, Ching-I PENG, Yan LIU 文献:Bot. Bull. Acad. Sin. 45: 360. 2004. 分布:Guangxi (Daxin, Long’an). 性质:syn. nov. |
德保秋海棠 | Begonia debaoensis | 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): 207 (-211; figs. 1-4). 2006. 形态描述:Herbs, monoecious; epipetric; perennial; rhizomatous. Rhizome slender, 20-60 cm or longer, 2.5-6 mm thick, internodes (15-)18-30(-35) mm long, sparsely villous. Stipules eventually deciduous, triangular to ovatetriangular, apex acute or obtuse, 4-9 mm long, 4-6 mm wide, reddish-hyaline, weakly keeled, without reddish nerves, with sparse minute subsessile brown glandular hairs on abaxial surface, villous along midrib, margin serrulate and ciliate, apex aristate, arista 1-3 mm long, hair-like. Leaves 5-14 or more, alternate, simple, asymmetric, unlobed, broadly ovate or suborbicular, base deeply cordate, margin denticulate and ciliolate, apex shortly acuminate or acute, (5-)6-8(-9.5) cm long (basal lobes included), (3.6-)4-6(-6.8) cm wide, green or dark green on adaxial surface, pale green to silver white (with white maculation on intercostal area in juvenile plants) and with green or brownish green veins, usually reddish on abaxial surface, texture thinly herbaceous, surface slightly rugose, adaxially sparsely setulose (trichomes 0.3-1 mm long, whitish-hyaline), abaxially sparsely pilose on 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 percurrent and loosely reticulate, forming a divergence angle of 80-90° to major veins, minor veins reticulate, all veins on abaxial surface slightly raised; petiole terete, (5-)6-10(-12) cm long, 1.5-3 mm thick, brownish or brownish red, villous. Inflorescences axillary, 1-3, arising directly from rhizome, flowers 4-7, in a dichasial cyme, cyme branched 1-3 times; staminate flowers 3-5, carpellate flowers 1 or 2; peduncle well developed, terete, erect or ascending, 6-15 cm long, 1.5-2 mm thick, glabrous or subglabrous. Bracts caducous, ovate to orbicular, margin denticulate and ciliate, apex obtuse or rounded, 3-5 mm long, 3-4 mm wide, membranaceous. Staminate flowers: pedicel 9-17 mm long; tepals 4, outer 2 tepals suborbicular, base rounded or slightly cordate, margin entire (or dentate and ciliate when abnormal), apex rounded, 6-11 mm long, 7-12 mm wide, glabrous or with sparse minute, subsessile, brown glandular hairs on outer surface, bicolor, pink toward margin, whitish in the middle, inner 2 tepals oblong or narrowly obovate, apex obtuse, 8-10 mm long, 3-4 mm wide, white, glabrous (or dentate and ciliate when abnormal); stamens abnormal, feminization, filaments 2-4 mm long, base with exposed ovule-like structures, tip forming a stigma-like structure, without anthers. Carpellate flowers: pedicel 7-11 mm long, sometimes with a bracteole on upper part; tepals 3, caducous, if persistent not thickened when fruiting, outer 2 tepals suborbicular, margin entire, eciliate, (5-)7-9(-11) mm long, (5-)8-9(-11) mm wide, bicolor as staminate flowers, inner tepal oblong or narrowly obovate, apex obtuse, 4-7 mm long, 2.5-3.5 mm wide, white, glabrous; ovary trigonous ellipsoid, 5-8 mm long, 3.7-4.1 mm thick (wings excluded), with sparse, minute, subsessile, brown glandular hairs, 3-winged; wings unequal or subequal; lateral wings 1-1.7 mm tall; abaxial wing crescentshaped or nearly so, 3-5 mm tall, 5-7 mm wide; locule 1, placentation intruded parietal from lower 1/3 of ovary to summit; placentae 3, each 2-branched; styles 3, fused in lower 1/4, yellow, 3-3.3 mm long, apically C-shaped; stigmatic band slightly spiraled. Fruits not seen. Somatic chromosome number, 2n = 30 (Figure 3). 分布:Guangxi: Baise Shi, Debao Xian, Jixingyan, c. 12km S of Debao, Type specimens pressed from plants in cultivation 性质:sp. nov. 模式引证:Guangxi: Baise Shi, Debao Xian, Jixingyan, c. 12km S of Debao, Type specimens pressed from plants in cultivation, c. 600 m, 23°15'10”N, 106°38'16”E, Ching-I Peng, Wai-Chao Leong, Shin-Ming Ku & Yan Liu 19712-A, 2005-11-30, holotype: HAST, isotype |
齿苞秋海棠 | Begonia dentatobracteata | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 254, fig. 4 (1995). 形态描述:Herbs, deciduous. Tubers 1.5-1.9 cm in diam. Leaves 2- or 3-fasciculate on tuber; stipules membranous, caducous; petiole 13-16.5 cm, glabrous or subglabrous; blade oblong-ovate or oblong, slightly asymmetric, 11-14 × 6.9-8.8 cm, abaxially hispidulous on veins, adaxially sparsely hispidulous, base cordate, margin serrulate, undivided, apex caudate-acuminate. Inflorescences terminal, racemose at base, ca. 26 cm tall; bracts oblong to obovate, membranous, apex (2 or)3-5 toothed. Staminate flowers: tepals 4, pink, outer 2 broadly ovate, 4-5 × 3-3.5 mm, inner 2 oblong, ca. 2.5 × 1 mm; stamens numerous; filaments fused to halfway; anthers oblong, ca. 1 mm. Pistillate flowers: tepals not seen; ovary 3-loculed; placentae axile, bilamellate; styles 3, free; stigmas U-shaped. Capsule pendulous, unequally 3-winged; abaxial wing oblate-orbicular, 7-13 × 7-12 mm, apex acute or obtuse; lateral wings smaller. Fl. Jul, fr. Aug. 分布:Yunnan(云南): Pianma (片马) 性质:sp. nov. |
峨眉秋海棠 | Begonia emeiensis | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 273, f. 19 (1995). 形态描述:Herbs, perennial. Rhizome terete, oblique, stout, with numerous slender fibrous roots. Stem short, 4(-20) cm tall or stemless. Basal leaf 1 similar to cauline ones, with long petiole; stipules caducous; petiole 17-27 cm, angular, glabrous; blade abaxially pale green, adaxially deep green or brown-green, ovate-oblong, 12-14 × 11-13 cm, abaxially subglabrous, adaxially subglabrous or sparsely hispidulous, palmately 6-veined, base deeply cordate, margin unequally shortly triangularly toothed (teeth apically awned), apex caudate-acuminate. Scape 13-20 cm tall, angular, glabrous; flowers pink, usually 2-4 in dichotomous cyme; peduncle 13-15 cm, angular, glabrous; pedicel (0.8-)2-3 cm, glabrous; bracts caducous. Staminate flower: tepals 4, outer 2 large, oblong, 1.3-1.8 × 0.8-1.5 cm, apex rounded; stamens numerous; filaments 2-2.5 mm, free; anthers oblong, ca. 1 mm. Pistillate flower: tepals 5 or 6, unequal, variable in shape, outer 2 broadly obovate, 1.2-2.1 × 1-1.3 cm, apex rounded, innermost 1 obovate-lanceolate, ca. 1 × 5-6 mm, apex rounded; ovary oblong or obovoid, ca. 10 × 5 mm, glabrous, unequally 3-winged, 2-loculed, placentae bilamellate; styles 2, short; stigma branched, spirally tortuous and papillose all around. Mature fruit unknown. Fl. Jul-Aug, fr. Sep. 分布:Sichuan(四川): Emei Mt. (峨眉山), Hongchunping (洪椿坪) 性质:sp. nov. |
| Begonia fangii | Begoniaceae | | 2005 |
Begonia fangii (sect. Coelocentrum, Begoniaceae), a new species from limestone areas in Guangxi, China 作者:Ching-I PENG,Yu-Min SHUI, Yan LIU, Shin-Ming KU 文献:Bot. Bull. Acad. Sin. 46(1): 83 (-89; figs. 1-6). 2005. 形态描述:Plant monoecious; epipetric; perennial. Rhizome succulent, dark purple-red, long creeping (to 50 cm or more), rooting at nodes, 8-15 mm in diameter, internodes to 8-15 cm long (1.5-3 cm at the first anthesis, elongate thereafter), covered with sparse, appressed or ascending hairs. Stipules nearly persistent, red to reddish brown, subglabrous or sparsely sericeous, triangular to narrowly triangular, asymmetric, thickly herbaceous, 12-15 mm long, 9-12 mm wide, apex subcucullate and aristate, margin entire. Leaves alternate, palmately compound; leaflets 3-6, petiolulate, subcoriaceous, dark green above, red or reddish beneath, central leaflet nearly symmetric, lateral leaflets asymmetric, lanceolate or broadly so, 7-15 cm long, 2. 5-4.5 cm wide, apex acuminate, base cuneate, rounded or slightly cordate, margins entire, undulate or remotely dentate, subglabrous on upper surface, covered with appressed or slightly ascending hairs along veins on abaxial surface, venation pinnate; petiolule terete, 1-2.5 cm long, 2-2.5 mm across; petioles terete, (6-)11-15(-20) cm long, 4-5 mm across, sericeous, the hairs whitish initially, turning brownish. Inflorescence an axillary dichasial cyme; peduncle well developed, reddish to red-brown, to 22 cm long, 2.5-3 mm in diameter, erect, sparsely to moderately pubescent, the hairs ascending, straight or curly; pedicels reddish to brownish, erect to ascending in staminate flowers, ascending to horizontal in carpellate flowers, sparsely pubescent. Bracts caducous, glabrous or rarely sparsely hairy on abaxial surface, oblong to ovate, herbaceous, greenish with reddish nerves, 8-13 mm long, 6-9 mm wide, apex acute to obtuse, margin loosely ciliateserrate on upper part, entire below. Tepals pinkish. Staminate flowers: tepals 4, outer two broadly ovate to orbicular, apex rounded, base slightly cordate, 16-27 mm long, 20-24 mm wide, pilose on abaxial surface (denser toward base), the hairs whitish, more or less curved; inner two obovate, oblanceolate to obtrullate, 11-12 mm long, ca. 7 mm wide, glabrous; androecium zygomorphic, compressed; stamens 25-55, golf-club shaped, yellow; filaments free, subequal, 1.5-2 mm long; anthers oblong, yellow, to 1.5-1.7 mm long. Carpellate flowers: tepals 3, caducous, outer two broadly ovate to orbicular, apex rounded, base slightly cordate, 13-15 mm long, 14-16 mm wide, sparsely pilose on abaxial surface; inner one 8-10 mm long, ca. 5 mm wide, glabrous; ovary sparsely pilose or subglabrous, pinkish, 3-winged; wings unequal or subunequal; lateral wings ca. 3-4 mm high, 8-10 mm wide; abaxial wing semi-orbicular, 3.5-4 mm long, 8-10 mm wide; locule 1 with 3 parietal placentae, each biforked, T-shaped, rarely branched again; styles 3, yellowish, ca. 3.5 mm long, fused in the lower 1/5; stigma bands U-shaped, slightly spiraled. Fruit a dehiscent capsule, nodding, 12-15 mm long, 6-7 mm wide (not including wings), very sparsely pilose to glabrous; lateral wings 4-5 mm high, 12-15 mm wide; abaxial wing 4-6 mm high, 12-15 mm wide. Seeds many, brown, ellipsoid, 0.5-0.6 mm long, 0.3-0.35 mm in diam. Somatic chromosome number, 2n = 30 (Figure 3). 分布:Guangxi: Chungzuo City, Longzhou Xian, Jinlong Xiang, Guiping Village, S of Yianbian Road, on the way to Banyian 性质:sp. nov. 模式引证:Guangxi: Chungzuo City, Longzhou Xian, Jinlong Xiang, Guiping Village, S of Yianbian Road, on the way to Banyian, c. 360 m, 22°42'48”N, 106°47'7”E, Ching-I Peng 19778A, holotype: HAST |
矮小秋海棠 | Begonia fengii | Begoniaceae | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 269, f. 15 (1995). 形态描述:多年生小草本。根状茎圆柱形,直径约4毫米,弓曲,节较疏,生出多数细长须状交织之根。叶全部基生,具长柄;叶片两侧略不相等,轮廓卵形,长1.8-2.5厘米,宽1.5-2厘米,先端短尾尖,基部微心形,边有尖锐三角形重锯齿,齿尖带短芒,上面深绿色,散生短硬毛,下面淡绿色,被短硬毛,沿脉较密,羽状脉,下面明显突起;叶柄长2.5-5厘米,被卷曲柔毛;托叶膜质,披针形,早落。花葶高4-5 (-7)厘米,散生长毛;花2-4朵,呈二歧聚伞状,首次分枝长5-7毫米,花梗长10-11毫米,均被褐色短毛;苞片膜质,卵状披针形,长3-4毫米,先端钝,早落。雌雄花均未见。蒴果下垂,梗长约1.3厘米,被褐色柔毛;轮廓倒卵球形,长5-7毫米,被褐色毛,3室,每室胎座具2裂片,具3翅,1翅较大,长4-5毫米,均呈斜三角形,上方的边平,下方的边从上向下斜,其余2翅小,均被疏毛;种子极多数,小,长圆形,淡褐色,光滑。花期5月。 分布:Yunnan(云南): Malipo (麻栗坡), Laojun Mt. (老君山) 性质:sp. nov. |
黑峰秋海棠 | Begonia ferox | Begoniaceae | | 2013 |
Novelties in Begonia sect. Coelocentrum B. longgangensis and B. ferox from limestone areas in Guangxi, China 作者:Ching-I Peng, Hsun-An Yang, Yoshiko Kono, Kuo-Fang Chung, Yu-Song Huang, Wang-Hui Wu, Yan Liu 文献:Bot. Stud. (Taipei) 54-44: 7. 2013. 形态描述:Monoecious rhizomatous herb. Rhizome stout, creeping, 1-2(−2.5) cm thick, to 40 cm long, internodes 1-1.5 cm long, villous near base of petiole. Stipules eventually deciduous, ovate-triangular, 1-1.7 cm long, 1.1-1.5 cm wide, herbaceous, strongly keeled, abaxially hairy along midrib, apex aristate, arista ca. 0.2 cm long. Leaves alternate, petiole terete, 10-23(−27) cm long, 0.4-0.7 cm thick, villous when young, turning brownish tomentose; leaf blade asymmetric, ovate, (11-)14-19 cm long, 8-13 cm wide, apex acuminate, base strongly oblique-cordate, margin repand, chartaceous, villous when young, adaxially green, surface bullate, intercostal area densely dotted with blackish-brown and hair-tipped bullae, individual bullae conical, tip reddish, (0.3-)0.8-1.3 cm high, (0.3-)0.8-1.2 (−1.5) cm across, abaxially pale green, reddish on veins and bullae region, tomentose on veins. Leaves of juvenile plant with few or no bullae. Inflorescences axillary, dichasial cymes, arising directly from rhizome, branched 3-4 times; peduncle 5-13 cm long, tomentose; bracts and bracteoles caducous, yellowish, bracts narrowly ovate, 1-1.2 cm long, 0.4-0.6 cm wide, boat-shaped, veins reddish, margin fimbriate, bracteoles oblong, ca. 0.3 cm long, 0.1 cm wide. Staminate flower: pedicel ca. 1.5 cm long, tepals 4, outer 2 broadly ovate, 0.9-1.1 cm long, 0.6-1 cm wide, abaxially yellowish-reddish, sparsely setulose, inner 2 elliptic, white, 0.7-1.1 cm long, 0.4 cm wide; androecium actinomorphic, spherical, ca. 0.4 cm across; stamens 65-85; filaments fused at base into a column ca. 0.2 cm long; anthers obovate, 2-locular. Carpellate flower: pedicel 1.5-1.6 cm long, tepals 3, outer 2 suborbicular or broadly ovate, pinkish-white, 0.8-1.1 cm long, 0.7-1.1 cm wide, inner 1 elliptic, white, 0.8-0.9 cm long, 0.3-0.4 cm wide; ovary trigonous-ellipsoid, 1.3-1.4 cm long, 0.4 cm thick (wings excluded), reddish, 3-winged; wings unequal, greenish-yellow, lateral wings narrower, 0.4-0.5 cm tall, abaxial wing crescent-shaped, ca. 0.6 cm tall, 1.5-1.6 cm wide; styles 3, fused at base, yellow or greenish, ca. 0.4 cm long, stigma spirally twisted. Capsule trigonous-ellipsoid, 1-1.5 cm long, 0.2-0.5 cm thick (wings excluded), greenish or reddish when fresh; wings unequal, lateral wings 0.3-0.5 cm tall, abaxial wing crescent-shaped, 0.6-0.9 cm tall. Seeds numerous, brown, ellipsoid, ca. 0.5 mm long, 0.3 mm thick. Somatic chromosome number, 2n=30 (Figure 7). 分布:Guangxi: Longzhou County, Chunxiu Headwater Forest Nature Reserve 性质:sp. nov. 模式引证:Guangxi: Longzhou County, Chunxiu Headwater Forest Nature Reserve, 130 m, Ching-I Peng, Kuo-Fang Chung, Yu-Song Huang & Bo Pan 22956, 2011-04-20, holotype: HAST, isotype: E, isotype: IBK, isotype: PE |
须苞秋海棠 | Begonia fimbribracteata | 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): 362, fig. 5 (2005). 形态描述:Herbs, rhizomatous. Rhizomes 7-10 cm, 2-10 mm in diam., glabrous, internodes 0.2-0.4 mm, apex acuminate. Leaves all basal; stipules triangular, ca. 5 × 3 mm, subglabrous; petiole 9-15 cm, with sparse strigae 1-2 mm; blade broadly ovate, 6-7 × 5-6 cm, papery, rugose and conically bullate, abaxially sparsely strigose on veins and notched on areolae, adaxially sparsely tumid-based setose, basally 6- or 7-veined, tertiary veins percurrent and loosely reticulate, base obliquely cordate, margin ciliate and serrulate, apex rounded. Inflorescences with ca. 5 flowers in a dichasial cyme; peduncle 10-16 cm, sparsely hairy; bracts oblong, ca. 4 × 3 mm, glabrous, margin serrulate and fimbriate-ciliate. Staminate flowers: pedicels 1.2-1.5 cm, sparsely hairy; tepals 4, outer 2 pink, broadly obovate, 8-9 × 7-8 mm, sometimes abaxially sparsely pilose, inner 2 pinkish, oblong-obovate; stamens numerous; filaments nearly free, 1.2-1.4 mm; anthers broadly oblong, 1.1-1.2 × 1.4-1.6 mm, apex obtuse. Pistillate flowers: tepals 3, outer 2 pink, orbicular, 0.5-0.6 cm in diam., glabrous, inner 1 white, obovate; ovary obconiform, 4-5 mm, sparsely hairy, 1-loculed with parietal placentation; styles 3, free, 1-1.1 mm; wings 3, subequal, lunate. Capsules unknown. Fl. Jun. 分布:Guangxi(广西): Donglan(东兰) 性质:sp. nov. |
多花秋海棠 | Begonia floribunda | Begoniaceae | | 1997 |
文献:Acta Phytotax. Sin. 35(1): 48, pl. 29 (1997), non Carrière (1875). 形态描述:多年生草本。根状茎伸长,粗壮,直立或铺地生根,长13-20厘米,直径5-7毫米,常有分枝,节密,被多数膜质褐色的卵状披针形鳞片,具有多数纤维状之根。叶盾形,均基生,具长柄,叶片两侧略不相等,轮廓长圆披针形或卵状披针形,长4.5-10.2厘米,宽1.5-2.9厘米,先端长渐尖或长尾尖,基部略偏斜,窄侧宽楔形,宽侧呈圆耳状,宽1-2厘米,边缘有极疏的不明显浅齿,上面深绿色,无毛,下面黄绿色,无毛,具浅色小圆形突起,掌状5-6条脉,窄侧1-2条,宽侧2-3条,下面明显;叶柄长2.5-2.7厘米,近无毛,有棱;托叶早落。花葶高2-4厘米,花多数,5-6回的二歧聚伞花序,紫色;花梗长7-10毫米,和分枝均无毛;苞片膜质,长圆形,长约2毫米,宽0.6-0.7毫米,无毛;雄花:花被片2,半圆形,长约3毫米,宽约3.5毫米,先端圆,基部微心形;雄蕊多数,花丝离生,长约1毫米,花药倒卵形,长0.6-1毫米;雌花:花被片2,宽卵形,长3-4毫米,宽4-5毫米,先端圆;子房长圆形,长5-7毫米,无毛,2室,每室胎座具2裂片,具3翅;花柱2,约1/2基部合生,柱头膨大,外向螺旋状扭曲,并带刺状乳突。蒴果下垂,果梗长约10毫米;轮廓长圆倒卵球形,长约13毫米,直径6-7毫米,无毛,有3不等之翅,较大的呈斧形,其余2窄,均无毛。花期7-8月,果期8月开始。 分布:Guangxi(广西): Longzhou(龙州) 性质:sp. nov. |
| Begonia gigabracteata | Begoniaceae | | 2008 |
A new species of Begonia (Begoniaceae) from Guangxi, China 作者:HONG-ZHE LI, HONG MA, ZHE-KUN ZHOU, KAI-YUN GUAN 文献:Bot. J. Linn. Soc. 157(1): 83 (-90; figs. 2-6, map). 2008. 形态描述:PLANT monoecious; epipetreous; deciduous. RHIZOME tuberous, irregular globose, less than 2 cm in diameter, rooting from the base. STIPULES caducous. LEAVES 1-3, basal; petiole 4-9.2 cm long, cylindrical in cross-section, ruby-coloured or green, slightly covered with short glandular hairs; blade slightly oblique, obovate, 7.6-10.7 × 4.5-8.2 cm, glabrous, adaxial surface peak green, abaxial surface white and slightly spongy, base cordate, basal lobes overlapping or not, apex acute or cuspidate, margin entire or slightly wavy or irregularly shallowserrate; venation reaching the margin, palmatepinnate, with three to four major lateral veins on each side, usually red and raised on abaxial surface. INFLORESCENCE arising from the tuber, thyrsoid, peduncle somewhat zigzagged, 10-16 cm tall, sometimes with a leaflet, base covered by two bracts, bracts greenish with a little pink, oblique triangular, 9 × 3 mm, margin ciliate; peduncle gradually elongating during anthesis, ruby-coloured or greenish, with sparse glandular hairs; the first branch c. 5 cm long, secondary degree branches c. 2 cm long, third degree branches 0.5-1 cm long. BRACTS caducous, paired at each pedicel node, white to greenish, margin ciliate, oblique triangular, c. 1.9 × 0.5 cm, gradually becoming smaller in size up the inflorescence; cymose lateral branches wrapped by pairs of gigantic bracts, oblong, 2.2-2.4 × 1.1-1.9 cm, apex bilateral curly backward, margin entire. MALE FLOWERS: tepals 4, pink, glabrous, outer 2, ovate to broad ovate, 12-15 × 9-11 mm, inner 2, narrowly obovate, slightly pendulous, 9-11 × 1-2 mm; pedicel white, pink to greenish, c. 2.2 cm long, scabrous; filament about 10-25, fused at base, c. 1 mm long; stamen hemispherical, yellow, about 1 mm long, dehiscing through slits along the sides of the anther. FEMALE FLOWERS: tepals 5, pink, glabrous, outer 2, ovate, 12-13 × 8-9 mm, inner 3, one narrowly obovate, c. 9 × 2 mm, the other two oblique ovate, 10-11 × 3.5-4 mm; pedicel white, pink to greenish, c. 1.7 cm long, scabrous; styles 3, fused at base, with U-shaped branches; stigmatic papillae in a spiral arrangement; ovary pink with greenish, glabrous, broad triangular, c. 7× 10 mm (wings included), unequal three-winged, lateral wings nearly equal, crescent-shaped, c. 1 mm broad, abaxial wing 7 × 10 mm. FRUIT white to brownish. SEEDS many, brown, ellipsoid. SOMATIC CHROMOSOME NUMBER 2n = 30 (H. Ma, H.-Z. Li & K.-Y. Guan, unpubl. data). 分布:Guangxi: Tian'e Xian, Pojie Xiang 性质:sp. nov. |
| Begonia gigaphylla | 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): 362, fig. 6 (2005). 形态描述:Herb perennial, 40-70 cm tall, without erect stems.Rhizomes slightly woody, 4-10 (-35) cm long, 0.5-2.0 (-3.0) cm diam., densely covered with strigae 1-1.5 mm long, internodes 3-5 mm long, nodus with many fibrous roots.Stipules mostly persistent, reflected, triangular, 4-5 mm long, 4-5 mm wide, apex shortly acuminate, dorsal surface dense covered with strigae ca.2 mm long.Leaves basal;blades thickly chartaceous, broadly ovate, 25-36 (-50) cm long, 18-27 (-40) cm wide, apex rotundate or with an obtuse tip, base obliquely cordate, margin serrulate and with cilia 1.0-2.0 mm long;ventral surface flat and laxly covered with tuberculate-based setae 0.3-0.4 mm long and many white dots;dorsal sruface densely covered with strigae 1-1.5 mm long along nerves and costa;petioles 18-32 cm long, densely covered with strigae 3.5-6 mm long.Inflorescences dichasial, cymose-liked, 30-50 cm long, 15-30 cm wide, arising from the axils of leaves of rhizome apex, with 60-100 flowers;peduncles 30-45 cm long, densely covered with glandular strigae 1.5-2.5 mm long;bracts triangular, 4-5 mm long, 3-4 mm wide at the base, subglabrous, apex acuminate. flowers:pedicles 0.5-0.6 cm long, laxly covered with glandular hairs 1-1.5 mm long, bracteoles oblong, 2-3 mm long, 1-1.5 mm wide, margin with cilia 1-2 mm long;tepals 4, outer 2 green, rotundate, 4-5 mm diam., reflected, outside laxly covered with glandular hairs 0.5-1 mm long, inside glabrous, inner 2 greenish, oblong, 3-4 mm long, 1.5-2.0 mm wide, glabrous;stamens numerous, filaments connate at the base, 0.5-0.6 mm long;anthers yellow, obovate, 0.3-0.4mm long, 0.2-0.3 mm wide, apex emarginate, rimae of anthers oblique.♀ flowers:tepals 3, outer 2 green, rotundate, 4-4.5 mm diam., outside with lax glandular hairs 1-1.5 mm long, inside glabrous, inner greenish, lanceolate, 4-4.5 mm long, 1.7-2 mm wide, glabrous; ovaries coniform, 8-9 mm long, 3-winged, laxly covered with glandular strigae 1.5-2.0 mm long, unilocular;parietal placenta with 3 bilobate placentae at the superior and middle parts and 3 integer ones arising at axis of ovary bottom; styles 3, ca.1.3 mm long, free, stigmas lycotropal and spiraled.Mature Capsules slightly nodding, obovate (excluding wings), 0.8-1.2 cm long, 0.3-0.5 cm diam., with 3 persistent tepals and styles;wings 3, unequal, laxly covered with glandular hairs, minor 2 narrowly oblique-triangular, 2-3mm long, major semirotundate or oblong, 5-7 mm long, apex rotundate or trunate, the superior margin descending, the inferior margin horizontal, descending and seldom ascending.Flowering from May to Oct;fruiting from July. 分布:Guangxi(广西): Longzhou(龙州), Nonggang National Natural Reserve(弄岗自然保护区) 性质:sp. nov. |
金秀秋海棠 (心叶秋海棠) | Begonia glechomifolia | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 255 (1995). 形态描述:Herbs, deciduous. Tubers ca. 1.8 cm in diam. Stems 18-25 cm tall, glabrous or subglabrous. Leaves basal and cauline; stipules caducous; petiole 3-9 cm, glabrous or subglabrous; blade subreniform, nearly symmetric, 2.5-5.5 × 4-8.5 cm, both surfaces subglabrous, venation palmate, 5-7-veined, base cordate, margin remotely denticulate, apex rounded or acute. Inflorescences terminal, glabrous; peduncle 9-13 cm; bracts caducous. Staminate flowers: pedicel 1-1.3 cm; tepals 4, outer 2 oblong or broadly ovate, ca. 1.2 × 1 cm, inner 2 obovate, ca. 7 × 5 mm; stamens numerous; filaments free; anthers subglobose, ca. 0.8 mm. Pistillate flowers: tepals 3, outer 2 broadly ovate, ca. 8 × 8 mm, inner 1 oblong, 5-6 × ca. 4 mm; ovary oblong, 3-loculed; placentae axile, bilamellate; styles 3; stigmas spiraled. Capsule unequally 3-winged; abaxial wing falcate, ca. 9 × 0.6 mm; lateral wings smaller, lunate, ca. 2 mm. Fl. Jun. 分布:Guangxi(广西): Jinxiu (金秀) 性质:sp. nov. |
广西秋海棠 | Begonia guangxiensis | BEGONIACEAE | | 1997 |
文献:Acta Phytotax. Sin. 35(1): 45, pl. 27 (1997). 形态描述:Herbs, rhizomatous. Rhizomes creeping, stout, 1.3-2 cm in diam. Leaves all basal; stipules caducous; petiole 10-22 cm, villous; blade obliquely broadly ovate or suborbicular in outline, 10-33 × 8-24 cm, papery, both surfaces villous-hirsute, basally 6- or 7-veined, tertiary veins weakly percurrent and reticulate, base deeply cordate, margin unequally shallowly dentate or denticulate, sometimes 3-5 shallowly sharply lobed, apex acuminate, often white-tipped. Inflorescences axillary; peduncle 10-35 cm, villous; flowers 5-20 in a dichasial cyme; bracts ovate, broadly ovate, or triangular-lanceolate, 2-9 × 1.7-6 mm. Staminate flowers: pedicel 1-1.5 cm; tepals 4, outer 2 broadly ovate or suborbicular, ca. 1.7 × 2 mm, abaxially pilose, inner 2 obovate or elliptic, ca. 12 × 6-7 mm; androecium nearly actinomorphic; stamens numerous; filaments fused at base, anthers obovoid, apex truncate. Pistillate flowers: pedicel ca. 3 cm; tepals 3; styles 3; ovary villous, 1-loculed with parietal placentation. Capsule nodding, ovoid-oblong, 1.5-2.1 × 1-1.4 cm, hairy, unequally 3-winged; abaxial wing obliquely lunate, other 2 narrow, lunate, hispidulous. Fl. Jan-Mar, fr. Mar-May. 分布:Guangxi(广西): Duan(都安), Banling(板岭), Yongji(永吉) 性质:sp. nov. |
| Begonia guaniana | Begoniaceae | | 2006 |
Begonia guaniana (Begoniaceae), a new species from China 作者:Hong Ma, Hong-Zhe Li 文献:Ann. Bot. Fenn. 43(6): 466 (-470; figs. 1-6). 2006. 形态描述:Tuberous perennial herbs; monoecious; tuber subglobose to depressed globose, usually 2-3 connected together, moniliform, whitish, greenish or brownish, covered with fibrous roots, 0.5-3 cm in diameter; stipule caducous, membranous, ovate to broadly lanceolate, slightly asymmetric, sparsely hairy on abaxial surface, greenish to brownish, 0.5-1 × 0.2-0.5 cm, apex acuminate, margin entire or remotely dentate; Leaves 1-4, all basal, alternate, nearly glabrous, with sparse tiny hairs on adaxial surface and sparse tiny hairs along abaxial veins and on abaxial surface near margin, simple, asymmetric, obliquely ovate to broadly ovate, rarely broadly cordate, thin but fleshy, adaxial surface often waxy, pale green to dark green, abaxial surface offwhite, pale green, or reddish to purplish, 5.5-17 cm long, 3.8-19 cm wide, apex acute, seldom obtuse, base cordate, often overlapped, margin crenate, irregularly serrate or shallowly repand, venation 5-7 palmate, with 2-3 major lateral veins on each side of main vein, veins directly up to margin, prominent on abaxial sur-face; petiole greenish, sometimes reddish near base, or brownish, terete, glabrous, sometimes with sparse tiny hairs near apex, 3-20 cm long, 2-4.5 mm in diameter. Inflorescence arising from tuber, dichasial cymose, branched 1-3 times, flowers three to many, peduncle well developed, seldom branched, greenish to reddish, 3-19 cm long, 2-5 mm in diameter, erect, glabrous; bract caducous, herbaceous, triangular, lanceolate to filiform, greenish to reddish, becoming brown at maturity, 0.4-1.1 × 0.1-0.3 cm, apex acute to acuminate, with sparse short hairs on abaxial surface, margin ciliate-serrate or entire; tepals glabrous, margin entire; staminate flowers: scented, pedicel white to pink, terete, 0.5-3.7 cm long, erect or ascending, tepals 4, outer 2 white to pink, broadly ovate, apex obtuse, often revolute, ca. 1-2 cm long, 0.9-1.5 cm wide, inner 2 white to pink, oblanceolate to obovate, apex obtuse to acute, ca. 0.7-1.5 cm long, 4-6 mm wide; androecium zygomorphic, compressed, stamens 21-33, golf-club shaped; filaments free, nearly equal in length, ca. 1-1.2 mm long, attached to a torus; anthers yellow, 2-locular, longitudinal dehiscence, apex emarginated, ca. 1-1.5 mm long; carpellate flowers: slightly scented, pedicel white to pink, compressed, 0.5-1.6 cm long, pendent, tepals 3, outer 2 white to pink, broadly ovate to ovate-orbiculate, often slightly revolute, ca. 1.4-1.6 cm long, 1.3 cm wide, inner one white to pink, oblanceolate, narrowly obovate to oblong, apex acute, ca. 7-9 mm long, 3.5-4.5 mm wide; ovary glabrous, ovate to broadly elliptic, greenish, 3-winged, locule 3; placenta axile, with one bifid placenta in each locule at upper and middle parts, and one entire placenta in basal part; styles 3, yellowish, ca. 2 mm long, fused at base; stigma U-form and somewhat spiraled; fruit a dehiscent capsule, glabrous, broadly elliptic, nodding, ca. 0.7-1.3 cm long, 0.6-1.1 cm wide (not including wings), with persistent styles, wings 3, unequal, larger one obliquely triangular, ca. 0.5-2.2 cm long, apex obtuse, superior margin horizontal to ascending, inferior margin ascending, minor 2 obliquely triangular, crescent-shaped or arched, ca. 1-5 mm long. Seeds many, brown. Flowering from July to September. 分布:Yunnan: Zhaotong City, Yanjin County, Miaoba Town, Huangcao Village, on moist cliff beside the highway (Miaoba Town to Yanjin County), soil pH 6.4-6.7 性质:sp. nov. 模式引证:Yunnan: Zhaotong City, Yanjin County, Miaoba Town, Huangcao Village, on moist cliff beside the highway (Miaoba Town to Yanjin County), soil pH 6.4-6.7, alt. ca. 500 m, 22°59'22”N, 104°15'9”E, H. Ma 2, 2005-06-10, holotype: KUN, isotype: KUN |
贡山秋海棠 | Begonia gungshanensis | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 270, pl. 16 (1995). 形态描述:Herbs. Rhizomes moniliform, short, stout. Stems erect, to 90 cm, glabrous or subglabrous. Leaves cauline; stipules caducous, lanceolate to ovate-lanceolate, 5-8 × ca. 5 mm, membranous, apex acuminate; petiole 1.5-3 cm, pubescent; blade falcate or narrowly lanceolate, asymmetric, 8-14 × 2.5-3.8 cm, abaxially pubescent, adaxially sparsely hispidulous, venation palmate-pinnate, base obliquely cordate, margin bidentate, very shallowly lobed, apex long acuminate or long caudate. Inflorescences glabrous, with 2-4(or 5) flowers; peduncle 4-5(-6) cm; bracts ovate or oblong, 8-13 × ca. 5 mm, apex acuminate. Staminate flowers: pedicel 1-1.5(-2) cm; tepals 4, pink, outer 2 broadly ovate, ca. 10 × 9 mm, abaxially villous, inner 2 elliptic, ca. 8 × 4 mm; stamens numerous; filaments free, 0.8-1 mm; anthers obovoid, ca. 1 mm. Pistillate flowers not seen. Capsule ellipsoid or obovoid-oblong, 5-6 mm, glabrous, 2-loculed; placentae axile, bilamellate; unequally 3-winged; abaxial wing falcate, 1.8-2 × ca. 1.2 cm, apex rounded; lateral wings triangular, 5-10 mm. Fl. Aug, fr. Dec. 分布:Yunnan(云南): Gongshan (贡山), Dulong River (独龙江) 性质:sp. nov. |