中文名 | 拉丁名 | 科名 | 基名 | 发表年代 |
| Begonia bonii var. remotisetulosa | 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): 360 (2005). 形态描述:Haec varietas var.bonii similis, sed internodiis rhizomatis 0.5-1 cm long (nec 0.1-0.2 cm long) foliis supra sparsim setulosis (nec dense setulosis)differt. 分布:Guangxi(广西): Debao(德保) 性质:var. nov. |
短茎秋海棠 | Begonia brevicaulis | Begoniaceae | | 1997 |
文献:Acta Phytotax. Sin. 35(1): 53, pl. 31 (1997); 形态描述:Herba perennis. Rhima robustwn, circ. 3. 5 cm longum, 7 mm diam, nodis densis squamis membr, ceis praeditis et radices numerosas graciles edentibus. Caulis abbreviatus, circ. 2.9 cm altus, hispidulus. Folia basalia longe petiolata; larninae inaequilaterales, late 0 vatae vel surbicul, 7-8.5 longae, 6.5-8 cm latae, apice rotundatobtusae, basi leviter obliquae, latere angustiore rotundatae, lobis circ. 2 cm lat, latere latiore auriculatae, auriculis 3. 9-4.2 cm lat, margine dense denticulatae, supra turate virides, sparse hispidulae, subtus viridulae, albidpunctulatae, ad nebrunneo-hirtellae, palmatim 8 ne, sta media et neis subtus prominentibus brunne; petioli 5-8 longi, sparse hispiduli, longitudinaliter angati; stipulae caducae. C:2-flora; bracteae 2, opsltae, virides, suborbiculares, circ. 2 m longae, 2.5 m latae, apice rotundatae, supra hispidulae, subtus ad nehispidulae; rami hispiduli, primarii 1. 3 cm longi, secundarii circ. 4 mm longi, Flos starninatus: pedicellus circ. 2 m longus, hispidulus; tepala 4, rosea, 2 exteriora late oblonga, circ. 1. 3 cm longa, 9 mm lata, apice rotundata, extus basi hispidula, 2 interi ora obovato-oblonga, circ. 9 mm longa, 3 nulata, apice rotundata, glabra; starnina numerl a, filarnentis circ. 1 mralongis, antheris obovato-oblongis O. 4 mm longis apice paulo apiculatis. Flos pistillatua ignotus. Capsula juvenalis 01:voidoblonga, circ. 1 cm longa, 6 mm diam, subglabra, subaequaliter 3-alata, ala una majore oblique triangulari, alis ceteris duabus angustioribus glabris, stylis persistentibus 3 basi nnatis, stigmatibus 2-1obatis apice turgidis, tor, dense papill pedicellus fructifer 6 mm longus, endulus, hispidulus. 分布:Yunnan(云南): Malipo(麻栗坡) 性质:sp. nov. |
短刺秋海棠 | Begonia brevisetulosa | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 265, pl. 12 (1995). 形态描述:Herbs. Rhizomes 5-8 mm in diam. Leaves basal; stipules membranous, caducous; petiole purple-red, 4.5-11 cm, densely brown villous; blade abaxially pale, adaxially yellow-green, oblong-ovate, asymmetric, 5.5-12 × 3.5-10.2 cm, abaxially sparsely shortly setose, adaxially densely hispidulous, venation palmate, 6(or 7)-veined, base slightly oblique, cordate, margin irregularly sharply serrulate, apex caudate-acuminate. Inflorescences 10.2-12.5 cm tall, densely hirsute; bracts abaxially hairy. Staminate flowers: tepals 4, outer 2 broadly ovate, ca. 12 × 8 mm, abaxially hirsute, inner 2 oblong, ca. 8 × 3 mm; stamens numerous; filaments free, ca. 1 mm; anthers oblong, ca. 1 mm. Pistillate flowers unknown. Immature capsule nodding, narrowly obovoid, 1.5-1.8 cm, pilose, 2-loculed, placentae axile, bilamellate, unequally 3-winged; abaxial wing ovate-lanceolate, ca. 1.5 × 1 cm, apex rounded; lateral wings smaller. 分布:Sichuan(四川): Muli (木里) 性质:sp. nov. |
册亨秋海棠 | Begonia cehengensis | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 254, pl. 3 (1995). 形态描述:Herbs, erect. Tubers globose, 6-8 mm in diam. Stems 10-16(-20) cm tall, subglabrous. Leaves mostly cauline; stipules caducous, membranous; petiole 4-8 cm, subglabrous; blade brownish on veins, broadly ovate or suborbicular, asymmetric, 7-8 × ca. 6 cm, papery, very thin when dried, subglabrous or sparsely hispidulous, venation palmate, base slightly oblique, rounded, margin shallowly crenate, apex acute. Inflorescences 2-4-flowered, glabrous; peduncle 3-5 cm; bracts caducous, lanceolate, membranous. Staminate flowers: pedicel 4-10 mm; tepals 2, white, depressed-ovate, ca. 8 × 10 mm; stamens numerous; filaments ca. 1 mm, free; anthers obovoid, ca. 1 mm. Pistillate flowers: tepals 2, white, unequal, one depressed-ovate, ca. 8 × 10 mm, other one broadly ovate, ca. 8 × 6 mm; ovary obovoid, glabrous, 3-loculed, apex with beak ca. 3 mm; placentae axile, bilamellate; style 3, free; stigmas U-shaped. Capsule pendulous, obovoid, 5-7 mm, subequally 3-winged; wings oblate-triangular, ca. 5 mm. Fl. Aug, fr. Sep. 分布:Guizhou(贵州): Ceheng (册亨), Huarong (花冗) 性质:sp. nov. |
角果秋海棠 | Begonia ceratocarpa | Begoniaceae | | 1999 |
Notes on the Genus Begonia from Yunnan 作者:SHUI Yu–Min, HUANG Su-Hua 文献:Acta Bot. Yunnan. 21(1): 13 (1999). 形态描述:Herba perennis, acaulis .Rhizoma repens , 5-6 mm diam .internodiis 1-3.5 cm longis ,pubescentibus .Stipulae ovato-oblongae , 2.5 cm longae , 1 cm latae , apice acuminatae , basi rotundatae, extus leviter pubescentes, margine subintegrae , parce ciliatae .Folia basalia ;petioli 23-30cm longi , angulati , dense pubescentes;laminae chartaceae , ovato -oblongae , valde oblique , 14-16cm longae , 7-8 cm latae , apice acuminatae , basi valde oblique cordatae , lobi exteriora 3-4 cmlongi , 4 -5 cm lati , interiora 3-4 cm lati , supra viridis subglabrae , subtus viridulae , secus nervosvillosae , nervis palmatis , reticulatis prominentibus , nervis extrorsis basilaribus 3-4 , introrsis basilaribus
2-3 , margine leviter repandis vel subintegris , interdum 1-2 lobatis , Inflorescentiae paniculatae, 20 cm longae , cymae 2-3(-4), peduncullo 5-10 cm longae , pedunculi cymarum 3-6.5cm longi , superne sensim breves , glabri , cymae 3-7 florae ;bracteae lanceolatae , 7-8mm longae ,2-3 mm latae , apice acuminatae , extus parce puberuli .Flores ♂:pedicelli 7-12 mm longi , gracili
, puberuli ;tepala 4 , rubella , 2 exteriora majora , late ovata ad suborbiculata , 10-13 mm longae , 8~12 mm lata , apice rotundata , basi leviter attenuata , glabra , 2 interiora minor , obovato -lanceolata, 10 mm longa , 4 mm lata , apice leviter attenuata , obtusa , basi attenuata , glabra ;stamina nu- merosa , distincta ,filamenta 2mm longa , antherae obovato -oblongae , flavae , 2mm longae ,connectivoapice leviter dilatato , obtuso .Flores ♀:pedicelli 5-7 mm longi , puberuli ;tepala 5 , rubella , lateobovata , interiora minor , 5-7 mm longa , 4-6mm lata , apice rotundata , basi attenuata , glabra ;ovariumtriloculatum , in quoque loculo placentae segmentis 2 praedita ,dorsoloculi in medio cornuto ;styli 3 , stigmatibus in ramosis 2 , lyratis contortis , papillosis .Capsula minima , rhombica , 10mm longa, 12 mm lato , pedicello5-7 mm longo , triloculata , dorso loculi in medio cornuto , 2-3 mm longo, puberulo . 分布:Yunnan: Hekou Xian, Nanxi, Machang 性质:新种 |
赤水秋海棠 | Begonia chishuiensis | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 267 (1995). 形态描述:Herbs, rhizomatous. Rhizomes 4-6 mm in diam. Leaves basal; stipules membranous, caducous; petiole 6-9 cm, densely brown hirsute; blade narrowly ovate to broadly lanceolate, slightly asymmetric, 4.5-10 × 3-5 cm, abaxially hirsute, adaxially hispidulous and hirsute, venation palmate-pinnate, 5- or 6-veined, base shallowly cordate, margin minutely denticulate, apex caudate-acuminate. Inflorescences 9-15 cm tall, 2-4-flowered, glabrous; bracts caducous. Staminate flowers: pedicel 1-1.3 cm; tepals 2 or ?3, broadly ovate, ca. 10 × 9 mm; stamens numerous; filaments free, ca. 1 mm; anthers oblong, ca. 1 mm. Pistillate flowers: pedicel 1-1.3 cm; tepals 2 or ?3, oblong-obovate, ca. 1.6 × 1 cm; ovary ovoid, glabrous or subglabrous, 2-loculed; placentae axile, bilamellate; styles 2, stigmas 2-cleft, spiraled. Capsule nodding, oblong, ca. 9 mm, unequally 3-winged; abaxial wing broadly falcate, ca. 1.3 × 0.8 cm, apex rounded; lateral wings smaller, lunate. Fl. Sep. 分布:Guizhou(贵州): Chishui (赤水) 性质:sp. nov. |
崇左秋海棠 | Begonia chongzuoensis | Begoniaceae | | 2012 |
Begonia chongzuoensis (sect. Coelocentrum, Begoniaceae), a new calciphile from Guangxi, China 作者:Ching-I PENG, Shin-Ming KU, Yoshiko KONO, Yan LIU 文献:Bot. Stud. (Taipei) 53(2): 283. 2012. 形态描述:Herbs, monoecious, epipetric, perennial, rhizomatous. Rhizome 6-15 cm or longer, (5-)7-10(-12) mm thick, internodes (3.5-)5-10(-12) mm long, reddish brown, nearly glabrous. Stipules eventually caducous, ovate or triangular-ovate, 8-9 mm long, 6.5-8.5 mm wide, reddish hyaline, with red venation, herbaceous, weakly or not keeled, glabrous or with few hairs along midrib, margin eciliate or sparsely ciliolate, apex aristate, arista 2-3 mm long, hair-like. Leaves 2-7, alternate, simple, asymmetric, unlobed or very shallowly lobed, broadly ovate, base deeply cordate, margin crenate-denticulate and ciliate, apex acuminate or shortly so, (6-)7-11(-13) cm long (basal lobes included), (5-)6-8(-10) cm wide, usually dark brownish to purplish red between major veins and major lateral veins, texture papery, surface slightly rugose, adaxially moderately to sparsely setulose (trichomes 0.3-1 mm long, whitish-hyaline or reddish), abaxially pilose along veins; venation basally 6(-7)-palmate, midrib distinct, veins pinnate along midrib, with 1-2 major lateral veins on each side, other primary veins branching dichotomously or nearly so, tertiary veins reticulate and weakly percurrent, forming a divergence angle of 70-100° to major veins, minor veins reticulate, all veins on abaxial surface prominently raised; petiole terete, 4.5-15 cm long, 2-3.8 mm thick, brownish red, sparsely hirsute-villous. Inflorescences axillary, dichasial cymes, 1-3 or more, arising directly from rhizome, usually below the leaf blades, branched 2 to 3 times. Flowers 4-8 per inflorescence; staminate flowers 3-6, carpellate flowers 1-2; peduncle terete, erect or ascending, 5-12 cm long, 1-1.8 mm thick, reddish brown or greenish, glabrous. Bracts caducous, oblong, ovate or rounded, margin denticulate and ciliate, apex obtuse or rounded, 2-8 mm long, 1.8-6 mm wide, smaller on distal pairs. Staminate flowers: pedicel 1-1.3 cm long, glabrous or subglabrous; tepals 4, outer 2 suborbicular, base rounded or slightly cordate, margin usually eciliate, sometimes remotely ciliate, apex rounded, 11-14.5 mm long, 11-15 mm wide, white or slightly pinkish, glabrous; inner 2 tepals obovate or narrowly so, base cuneate, margin eciliate, apex obtuse or rounded, 9-11 mm long, 3.5-5 mm wide, white, glabrous; androecium zygomorphic, subglobose, stamens 25-35, golf-clubshaped; filaments subequal, 1.2-3 mm long, nearly free; anthers ± ascending, 2-locular, slightly compressed, obovoid, connective apex emarginate, 1-1.5 mm long, 0.7-1 mm wide, yellow. Carpellate flowers: pedicel 6-7 mm long, horizontally spreading to pendent, bracteole absent; tepals 3, caducous, outer 2 tepals suborbicular or oblateovate, margin usually eciliate, 9.5-11.5 mm long, 10-11.5 mm wide, white or slightly pinkish, glabrous; inner tepal elliptic or broadly lanceolate, base cuneate, apex obtuse or acute, 6-8 mm long, 2.5-3 mm wide, white, glabrous; ovary trigonous-ellipsoid, slightly compressed, 5-6.5 mm long, 4.5-5.3 mm thick (wings excluded), glabrous, 3-winged; 1-locular with intruded parietal placentation (axile at base); placentae 3, each 2-branched and T-shaped; styles 3, nearly free, yellow, 2.8-3.5 mm long, apically C-shaped; stigmatic band spiraled. Capsule nodding, trigonousellipsoid, somewhat compressed, 7.5-10 mm long, 5-5.5 mm thick (wings excluded), apex with persistent styles; wings equal or subequal; lateral wings 2-2.5 mm tall; abaxial wing crescent-shaped or nearly so, 2.5-3 mm tall. Seeds numerous, brown, ellipsoid or ovoid-ellipsoid, 0.5-0.57 mm long, 0.29-0.32 mm thick, chalazal end rounded, micropylar end obtuse, outer periclinal walls of mature seeds concave; collar cells elongated, straight, nearly rectangular, 10-13 cells in a ring, occupying 1/4-1/2 of seed length. Somatic chromosome number, 2n = 30 (Figure 3). 分布:Guangxi: Chongzuo Shi, Jiangzhou Qu, Banli Xiang, Nongguanshan 性质:sp. nov. 模式引证:Guangxi: Chongzuo Shi, Jiangzhou Qu, Banli Xiang, Nongguanshan, ca. 230 m, Ching-I Peng, Yan Liu, Shin-Ming Ku, Huan-Yu Chen 20390-A, 2005-08-23, holotype: IBK, isotype: HAST |
澄迈秋海棠 | Begonia chuniana | Begoniaceae | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 267, pl. 13 (1995); 形态描述:多年生草本。高15-20厘米。根状茎伸长,斜出,横走,节处被残存膜质褐色的鳞片,周围生出多数细长纤维状之根。叶均基生,具长柄;叶片两侧不相等,轮廓卵状披针形,长6-11厘米,宽3.5-5厘米,先端渐尖,基部心形,窄侧呈圆形,宽侧延伸呈长圆形,长达2-3厘米,边缘有浅而疏带短芒三角形之齿,上面深绿色,近无毛,下面浅绿色,散生短硬毛,沿脉较密,叶脉在两面明显突起;叶柄长5-9厘米,被褐色卷曲毛;托叶膜质,卵状披针形,长约10毫米,宽约5毫米,先端渐尖,早落。花葶高8-10.8厘米,疏被短毛或近于无毛,花白色或黄色;雄花:数目较多可达8朵,呈圆锥状,长7-10厘米;苞片和小苞片膜质,披针形,长8-10毫米,先端渐尖,边常有疏齿;花梗长1.5-1.8厘米,花被片4,外轮2枚大,长卵形至长方形,长15-17毫米,宽10-13毫米,先端圆,内轮2枚小,长圆形,长4-5毫米,宽2-3毫米,先端圆钝;雄蕊多数,花丝长1.5-2.5毫米,离生,花药长圆形或倒卵长圆形,黄色,长约1.5毫米,药隔不明显;雌花:花数目较少,通常2-4朵,苞片和小苞片膜质,披针形,长6-9毫米,宽2-3.5毫米,先端渐尖,早落;花梗长1.5-2.5厘米,被腺毛;花被片4,外轮2枚宽卵形,长10-12毫米,宽8-9毫米,先端圆或钝,内轮2枚长圆形,长7-8毫米,宽3-4毫米,先端钝;子房2室,每室胎座具2裂片;花柱2,柱头分裂并呈外向螺旋状扭曲,带刺状乳突。蒴果具略不等大3翅,2窄翅近等大;种子多数,长圆形,长约0.5毫米,浅褐色,光滑。花期3-4月,果期4月开始。 分布:Hainan(海南): Chengmai(澄迈). Baishiling Mt.(白石岭) 性质:sp. nov. |
假侧膜秋海棠 | Begonia coelocentroides | Begoniaceae | | 2007 |
Begonia coelocentroides Y. M. Shui & Z. D. Wei, a new species of Begoniaceae from Yunnan, China 作者:WEI Zhi-Dan, SHUI Yu-Min, ZHANG Mei-De, ZHANG Rong-Mei 文献:Acta Phytotax. Sin. 45(1): 86 (-89; fig. 1). 2007. 形态描述:Herb perennial, deciduous in winter, acaulescent. Rhizome repent, 4-7 mm in diam., internodes 3-5 mm long, rooting at the nodes. Stipules triangular, 3-8 mm long, 3-6 mm wide at the base. Leaves 1-3, rarely 4, basal; petioles 7-18 cm long, sparsely pilose; blade chartaceous, very oblique, broadly ovate, 5.5-28 (-42) cm long, 5-22 (-30) cm wide, apex shortly acuminate, base obliquely cordate, margin long ciliate; adaxial surface green, sparsely pilose; abaxial surface greenish, extremely pilose on the nerves; nerves palmately 6-9. Inflorescence arising from rhizome, dichasia 1-to 3-branched, 3-to 11-florous; peduncle 10-15 cm long, glabrous; bracts triangular-ovate, 3-6 mm long, 2-3 mm wide. Tepals white or pink. Male flowers: pedicles 1-2.5 cm long; tepals 4, outer 2 larger, broadly ovate, 12-19 mm long, 8-14 mm wide, sparsely red hairy outside, inner 2 smaller, obovate, 10-14 mm long, 5-7 mm wide, glabrous; stamens numerous; filaments 1.5-2 mm long, base connate; anthers oblong, 1-1.5 mm long, 0.5-0.7 mm wide, apex of connective slightly concave. Female flowers: pedicles 2-2.8 cm long; tepals 5, outer 4 broadly ovate, 9-15 mm long, 7-13 mm wide, sparsely hairy outside, inner 1 obovate, 10-13 mm long, ca. 7 mm wide, glabrous; styles 2, 1-2 mm long, stigmas bifid, contorted; ovary 2 loculed with 2 bifid placentas, placentation parietal on upper part and axial in the middle and below. Capsule obovate, 10-12 mm long, 4-7 mm wide, unequally 3 winged; the largest wing ligulate, 20-22 mm long, 9-14 mm wide, superior margin horizontal or slightly descending, inferior margin horizontal or slightly ascending, apex acute; the other two very small, equal, crescentshaped, 10-12 mm long, 1.5-2 mm wide. Seeds numerous, minute. Flowering from Aug. to Sept. 分布:Yunnan: Yingjiang(盈江), from Taiping(太平) to Yingjiang(盈江) 性质:sp. nov. |
| Begonia coptidifolia | Begoniaceae | | 2004 |
Begonia coptidifolia (Begoniaceae), a new species from China 作者:Hua-Gu YE, Fa-Guo WANG, Yu-Shi YE, Ching-I PENG 文献:Bot. Bull. Acad. Sin. 45(3): 259 (-266; figs.). 2004. 形态描述:Plants monoecious, rhizomatous, internodes short, indistinct, rooting at nodes. Rhizomes slender and short, unbranched, covered with stipules. Stipules brown, membranaceous, glabrous, persistent, triangular, 5-8 × 3-4 mm, margins entire, apex long cuspidate. Erect stem absent when sterile; stem at anthesis 10-15(-30) cm long, unbranched, subtended by 1-3 leaves. Basal leaves 2-5; petiole 5-13 cm, adaxial surface grooved, sparsely setulose; blade ovate to suborbicular in outline, 10-18 × 8-15 cm, palmately 3-cleft to base, sparsely setulose on upper surface and along midvein and secondary veins on lower surface; lobes ovate-lanceolate, 2.7-10.2 × 1.4-4.1 cm, often 2-cleft again to base; lobules narrowly elliptic-lanceolate, 3-9 × 1.5-3.5 cm, pinnately parted; segments oblonglanceolate, 1.4-5.1 × 0.4-1.1 cm, apex acute, with 2-4 teeth on each side; cauline leaves smaller than basal leaves. Inflorescence axis 5-15 cm, glabrous. Inflorescence a terminal cyme, flowers 1-4; bract narrowly triangular, 10 × 3 mm, apex acute. Peduncle 3.5-4(-7) cm long at fruiting. Staminate flower: pedicel 13 mm long, white; tepals 4, in two whorls, outer two broadly ovate, ca. 12 × 13 mm, base slightly cordate, apex rounded; inner two ovate, ca. 12 × 8 mm; stamens many, filaments fused below into a column. Carpellate flowers: pedicel pinkish white, 14-17 mm long, sparsely hispidulous; tepals 5, white, ovate, ca. 10 × 7 mm, apex rounded; ovary obovate-trigonous, 2-locular. Capsule obovate-oblong, ca. 2.5 cm long, 1.3-1.6 cm in diam.; wings 3, unequal, larger one ligulate, 1.7-2.3 cm, apex obtuse, glabrous, other two narrower, ca. 8 mm long, sparsely hairy. 分布:Guangdong: Yangchun city, Ehuangzhang Natural Reserve, Honghuatan 性质:sp. nov. |
黄连山秋海棠 | Begonia coptidimontana | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 251, pl. 1 (1995). 形态描述:Herbs, erect. Rhizomes short, stout. Stems reddish brown to reddish, 70-120 cm, glabrous, branching twice or more. Leaves basal and cauline; stipules caducous, lanceolate, ca. 5 mm, membranous, glabrous; petiole 3-5 cm, glabrous or subglabrous; blade ovate-lanceolate, 5-12 × 1.8-4 cm, both surfaces sparsely hirsute, venation palmate-pinnate, base obliquely cordate, margin remotely serrulate, apex caudate-acuminate. Inflorescences glabrous, with few flowers; peduncle 2.5-5 cm, slender; bracts caducous, oblong, 3-4 × ca. 1 mm, membranous. Staminate flowers: tepals 4, pink, outer 2 broadly ovate, ca. 8 × 6 mm, outside sparsely hairy, inner 2 oblong, 5-8 × 3.5-4(-6) mm, glabrous; stamens numerous; filaments free, 1-1.5 mm; anthers obovoid, ca. 1 mm. Pistillate flowers: tepals 5, unequal, largest broadly ovate, ca. 1.2 × 1.1 cm, outside sparsely hairy, smallest oblong, ca. 8 × 5 mm, glabrous; ovary obovoid-oblong, sparsely hairy when young, 3-loculed; placentae axile, bilamellate; styles 3, free; stigmas 2-cleft, spiraled. Capsule nodding, unequally 3-winged; abaxial wing falcate, 1.3-2 × ca. 1 cm; lateral wings triangular, 5-7 mm. Fl. Aug, fr. Sep-Oct. 分布:Yunnan(云南): Luchun (绿春).Huanglian Mt. (黄连山). Luosha River (落沙河) 性质:sp. nov. |
橙花秋海棠 | Begonia crocea | Begoniaceae | | 2006 |
Novelties in Begonia sect. Platycentrum for China B. crocea, sp. nov. and B. xanthina Hook., a new distributional record 作者:Ching-I PENG, Wai-Chao LEONG 文献:Bot. Stud. (Taipei) 47(1): 89 (-92; figs. 1-3). 2006. 形态描述:Herbs, perennial, acaulescent, monoecious. Rhizomes elongate creeping, to 2 cm thick, pilose, internodes congested. Stipules triangular, to 1.5 cm long, to 1 cm wide, glabrous or pilose along midrib, margin entire, apex cuspidate, caducous. Leaves fasciculate, alternate; petiole green, reddish toward base, 34-41 cm long, 0.9-1 cm thick, densely whitish pilose, denser toward junction with leaf blade; leaf blade herbaceous, green, not variegated, somewhat lustrous on adaxial surface, broadly ovate, asymmetric, to 30.5 cm long, to 24 cm wide, sparsely pilose along veins on abaxial surface, glabrous on adaxial surface, base oblique, deeply cordate, not overlapping, margin remotely minutely serrulate, apex acute; venation palmate, 9-10-nerved. Inflorescences arising directly from the rhizome, axillary, cymose, shorter than to nearly as tall as leaves, 16-34 cm long, with 7-22 staminate flowers and 3-8 carpellate flowers; peduncle green, dotted with short reddish lines, 12.5-25 cm long, 4-5.8 mm thick, glabrous; bracts in pairs, reddish, ovate, to 2.1 cm long, to 1.2 cm wide, glabrous, margin entire, apex acute. Flower buds orange-red, lustrous and waxy, subglobose; tepals orangered, glabrous. Staminate flowers: pedicel greenish, orangered toward junction with flower, 1.2-1.8(-3.1) cm long, glabrous; tepals 4, outer 2 ovate, 1.1-1.8 cm long, 1.1-1.4 cm wide, apex retuse, inner 2 elliptic or narrowly obovate, 1.1-1.8 cm long, 0.9-1.1 cm wide, apex obtuse to retuse; androecium actinomorphic, shortly columnar, ca. 7.5 mm long and thick, stamens ca. 100 or more, yellow, filaments 2.5-3.5 mm long, basally fused into a short androphore, anthers fusiform to obovate, 1.5-4.5 mm long, connective extended, apex acuminate. Carpellate flowers: pedicel greenish, 1.3-1.5 cm long, glabrous; tepals 5, subequal, obovate, 1-1.2 cm long, 0.8-1 cm wide, apex obtuse or retuse; ovary greenish at anthesis, ellipsoid, unequally 3-winged, glabrous, 2-locular; placentae axile, bilamellate; styles 2, yellow, 2-cleft, 5-5.6 mm long, free; stigmas in a strongly spiraled band. Infructescences 17-36 cm long; capsules nodding, unequally 3-winged, abaxial wing narrowly oblong, 17-18 mm long, 8-8.5 mm wide, apex obtuse, lateral wings much smaller, 6.5-7 mm long. Seeds numerous, ca. 0.3 mm long, chalazal end rounded, lip of seed nipple-shaped, micropylar end constricted. 分布:Yunnan: Jiangcheng Xian, Jiahe Xiang. Type specimens pressed from plants cultivated in the experimental greenhouse at Academia Sinica 性质:sp. nov. |
水晶秋海棠 | Begonia crystallina | 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): 360 (2005). 形态描述:Herbs, rhizomatous. Rhizomes creeping, 6-12 cm, 0.8-1 cm in diam.; internodes 0.2-0.3 mm, hirsute-pilose. Leaves all basal; stipules reflexed, triangular, 5-7 × 3-4 mm, glabrous, apex acuminate; petiole 17-25 cm, hirsute-villous; blade broadly ovate, 12-23 × 11-23 cm, thickly papery, abaxially densely strigose-pilose on veins, adaxially moderately setulose, hairs with slightly tuberculate bases, basally 6- or 7-veined, tertiary veins percurrent and densely reticulate, base obliquely cordate, margin serrulate and ciliate, apex obtuse. Inflorescences 10-15 flowered in a dichasial cyme; peduncle 10-18 cm, sparsely hirsute; bracts ovate, 2-3 × 1.5-2 mm, subglabrous, margin ciliate, apex acuminate. Staminate flowers: pedicels 1-1.1 cm, subglabrous; tepals 4, glabrous, outer 2 pink, orbicular, 0.9-1 cm in diam., inner 2 pinkish, narrowly oblong, 10-11 × ca. 2 mm; stamens numerous; filaments nearly free; anthers oblong, 0.8-0.9 × 0.6-0.7 mm, apex emarginate or orbicular. Pistillate flowers: tepals 3, glabrous, outer 2 pink, orbicular, 7-8 mm in diam., inner 1 pinkish, oblong; ovary coniform, ca. 1 cm, glabrous, 3-winged, 1-loculed with parietal placentation; styles 3, free, ca. 1 mm. Capsule nodding, broadly ovoid, ca. 6 × 6 mm; wings 3, lunate, larger one 2-3 mm, apex subtruncate. Fl. Aug-Jan. 分布:Yunnan(云南): Malipo(麻栗坡), Tianbao(天保) 性质:sp. nov. |
瓜叶秋海棠 | Begonia cucurbitifolia | BEGONIACEAE | | 1995 |
文献:Acta Phytotax. Sin. 33(3): 268, pl. 14 (1995). 形态描述:Herbs, rhizomatous. Rhizomes 8-11 mm in diam. Stems ca. 4 cm, glabrous. Leaves all basal; stipules caducous, lanceolate, ca. 1.2 cm, membranous, glabrous; petiole 22-26 cm, glabrous; blade orbicular, nearly symmetric, 14-16.2 × 14-16 cm, subleathery, both surfaces subglabrous, venation palmate, 3- or 4-veined, base shallowly cordate to obtuse, margin remotely and minutely serrulate, divided to 1/2 of leaf length or more, 3- or 4-lobed; lobes oblong or somewhat ovate, apex acuminate to caudate. Inflorescences to 27 cm tall, subglabrous; bracts caducous. Staminate flowers: pedicel ca. 1.5 cm; tepals 4, white, glabrous, outer 2 narrowly ovate or triangular-ovate, ca. 2.5 × 1.3 cm, inner 2 oblong, ca. 15 × 5 mm, apex acute. Pistillate flowers not seen. Capsule nodding, ellipsoid, ca. 17 × 8 mm, glabrous, 2-loculed, unequally 3-winged; abaxial wing ovate-oblong, ca. 1.7 × 1.4 cm, apex rounded; lateral wings lunate, 5-7 mm; placentae axile, bilamellate. Fl. Aug, fr. Aug. 2 n = 44*. 分布:Yunnan(云南): Hekou (河口), Xiaonanxi (小南溪), Majiahe (马家河) 性质:sp. nov. |
弯果秋海棠 | Begonia curvicarpa | Begoniaceae | | 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(4): 353 (-357; figs. 1-3). 2004. 形态描述:Plant monoecious; epipetric; perennial; rhizomatous, rooting at nodes. Rhizome succulent, creeping, elongate, somewhat zigzag, brown, sparsely hairy, 4-9 mm in diameter, internodes 1.5-5.5 cm long. Stipules often persistent, triangular, sparsely hairy along midrib, soon glabrescent on abaxial surface, thickly herbaceous, brownish to reddish brown, ca.10 mm long, 9 mm wide, apex aristate, margin entire. Leaves alternate, sparsely pilose on adaxial surface and villous on abaxial surface, densely hairy along major veins on abaxial surface, simple, asymmetric, obliquely broadly ovate to orbiculate, thin chartaceous, green above, green to reddish beneath, (4-) 6-10 (-19) cm long (basal lobes included), (3-) 4-9 (-12) cm wide, apex acute to acuminate, rarely obtuse, base cordate, margin denticulate or ciliate-dentate, sometimes crenate; venation basally 6-7-palmate, pinnate along the midrib, with 2-3(-4) major lateral veins on each side; petioles brown, terete, 7-12 (-17) cm long, 2-4 mm in diameter, slightly reflexed crisp-hairy. Inflorescences axillary, arising from the rhizome, cymose, 1-3 branched, flowers 3-5; peduncles well developed, brown to brownish-green, to 9-12 cm long, 2-3 mm in diameter, erect or ascending; pedicel reddish to brownish with many red flecks, ascending in staminate flowers, horizontal to pendent in carpellate flowers. Bracts caducous, oblong, elliptic to ovate, herbaceous, green to reddish, to 4-8 (-10) mm long, 3-4 (-6) mm wide, apex obtuse, margins ciliate-serrate. Tepals glabrous, margins entire. Staminate flowers: tepals 4, outer 2 white to pinkish on adaxial surface and pink on abaxial surface with reddish flecks, broadly ovate to ovateorbiculate, base slightly cordate, apex rounded, 13-15 mm long, 15-17 mm wide, inner 2 white, oblanceolate, apex obtuse, ca. 12 mm long, 6 mm wide; androecium zygomorphic, stamens 35-40, golf-club shaped; filaments free, nearly equal in length, ca. 2 mm long; anthers 2-locular, slightly compressed, oblong, apex slightly emarginate, yellowish, ca. 1.2 mm long. Carpellate flowers: tepals 3, outer two white to pinkish on adaxial surface and pink on abaxial surface with reddish flecks, occasionally white on both surfaces, broadly ovate to ovate-orbiculate, apex rounded, 14-17 mm long, 15-17 mm wide, inner one obtrullate to oblanceolate; ovary glabrous, pinkish and with many red flecks, somewhat curved, 3-winged; wings unequal; lateral wings much narrower, curved, thick, 3-4 mm high; abaxial wing elliptic or nearly triangular, 6-7 mm high, 7-8 mm wide; locule 1; placentation intruded parietal; placentae 3, branches 2-4 per placenta; styles 3, fused in the lower 1/3, yellow, 4-5 mm long, the top split into a rounded U-shape; stigmas U-form and somewhat spiraled. Fruit a dry capsule, nodding, greenish when fresh and brownish when dry, manifestly crooked, 11-14 mm long, ca. 8-9 mm wide (wings excluded), glabrous; lateral wings 4-5 mm high; abaxial wing 8-8.5 mm high, apex with persistent tepals and styles. Seeds many, brown, ellipsoid or broadly ellipsoid, 0.5-0.6 mm × 0.3-0.35 mm, chalazal end rounded, micropylar end somewhat constricted, outer periclinal walls collapsed in mature seeds; collar cells elongated, straight, nearly rectangular, 10-12 cells in a ring, occupying 1/2 to 1/3 of the seed length; anticlinal walls between the collar cells raised, straight, rarely slightly undulated; testa cell nearly isodiamentric-polygonal, mostly pentagonal and hexagonal, those adjacent to collar cells rarely slightly elongated. Somatic chromosome number, 2n = 30 (Figure 3A). 分布:Guangxi 性质:sp. nov. |