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- Two New Species of Begonia (Sect. Coelocentrum, Begoniaceae) from Limestone Areas in Guangxi, China: B. Arachnoidea and B. Subcoriacea
- Begonia Liuyanii (Sect. Coelocentrum, Begoniaceae), a New Species from Limestone Areas in Guangxi, China
- Begonia chongzuoensis (sect. Coelocentrum, Begoniaceae), a New Calciphile from Guangxi, China
- Begonia Bamaensis (Sect. Coelocentrum, Begoniaceae), a new Species from Limestone Areas in Guangxi, China
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- Three New Taxa of Begonia (Sect. Coelocentrum, Begoniaceae) from Limestone Areas in Guangxi, China
- Four New Species of Begonia Sect. Coelocentrum (Begoniaceae) from Limestone Areas in Guangxi, China
- Begonia Fangii (Sect. Coelocentrum, Begoniaceae) , a New Species from Limestone Areas in Guangxi, China
- Notes on Begonia (sect. Coelocentrum, Begoniaceae) from Guangxi, China, with the Report of Two New Species
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題名 | Two New Species of Begonia (Sect. Coelocentrum, Begoniaceae) from Limestone Areas in Guangxi, China: B. Arachnoidea and B. Subcoriacea=中國廣西石灰岩地區秋海棠屬側膜組二新種:蛛網脈秋海棠、近革葉秋海棠 |
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作者 | 彭鏡毅; 古訓銘; 河野淑子; 鍾國芳; 劉演; Peng, Ching-i; Ku, Shin-ming; Kono, Yoshiko; Chung, Kuo-fang; Liu, Yan; |
期刊 | Botanical Studies |
出版日期 | 20081000 |
卷期 | 49:4 2008.10[民97.10] |
頁次 | 頁405-418 |
分類號 | 373.49 |
語文 | eng |
關鍵詞 | 蛛網脈秋海棠; 劉演秋海棠; 近革葉秋海棠; 傘葉秋海棠; 簇毛傘葉秋海棠; 秋海棠科; 中國; 染色體數; 廣西; 石灰岩植物; 新種; 稀有植物; 側膜組; Begonia arachnoidea; Begonia liuyanii; Begonia subcoriacea; Begonia umbraculifolia; Begonia umbraculifolia var. flocculosa; Begoniaceae; China; Chromosome number; Guangxi; Limestone flora; New species; Rare species; Sect. coelocentrum; |
中文摘要 | 本文報導中國廣西壯族自治區大新縣石灰岩地區的秋海棠屬側膜組二新種:蛛網脈秋海棠(Begonia arachnoidea),提供線繪圖與彩色照片以資辨識,並報導此二新種與傘葉秋海棠(B. umbraculifalia)的染色體數(皆為2n=30)。蛛網脈秋海棠與傘葉秋海棠葉形相似,但根莖粗壯、節間短縮;托葉卵狀三角形;葉片上表面密被粗短剛毛及小直硬毛,下表面於各級脈上密被細硬毛狀柔毛;雌花小花梗較長,具一枚小苞片。近革葉秋海棠與劉演秋海棠(B. liuyanii)皆具近於革質的葉子,但植株較小,葉上表面光滑無毛,下表面僅一、二級脈具有絨毛,三級脈無絨包也不可起;具二歧聚繖花序,外花被片的外側光滑或近於光滑。此二新種皆為稀有植物。 |
英文摘要 | Begonia arachnoidea and B. subcoriacea, two new species of Begonia sect. Coelocentrum from the karst area in Guangxi Zhuangzu Autonomous Region, China, are described and illustrated. Begonia arachnoidea is similar to B. umbraculifolia in the peltate leaves with the venation in a spider web-like pattern, differing by rhizomes stout, internodes congested, stipules ovate-triangular, leaves adaxially densely shortly setose and hispid-setulose, abaxially densely hispidulous-pilose on all veins, pedicel of carpellate flower longer and with a bracteoloe. Begonia subcoriacea is similar to B. liuyanii in the small flower, differing by smaller habit; leaves adaxially glabrous, abaxially tomentose only on major veins, tertiary leaf venation flat; outer tepals glabrous or subglabrous, and inflorescence a dichasial cyme. Both new species are rare and endemic to Guangxi, A somatic chromosome number of 2n=30 is here reported for B. arachnoidea, B. umbraculifolia and B. subcoriacea. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。