TITLE	Begonia fangii (sect. Coelocentrum, Begoniaceae), a new species from limestone areas in Guangxi, China
AUTHOR	Ching-I Peng Institute of Botany, Academia Sinica, Nankang, Taipei 115, Taiwan Yan Liu Guangxi Institute of Botany,Guangxi Zhuangzu Autonomous Region and Academia Sinica, Guilin 541006, China Shin-Ming Ku Institute of Botany, Academia Sinica, Nankang, Taipei 115, Taiwan Shin-Ming Ku Institute of Botany, Academia Sinica, Nankang, Taipei 115, Taiwan
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ABSTRACT	Begonia fangii, a new species of sect. Coelocentrum from limestone areas in southwestern Guangxi Zhuang Autonomous Region, China, is described and illustrated. Somatic chromosome number (2n = 30) is here reported. Begonia fangii is similar to B. hemsleyana (sect. Platycentrum) in having palmately compound leaves, but it is sharply distinct in having long creeping stem (vs. erect stem with a short rhizome); leaf with (3-)4-5(-7) [vs. (6-)7-10(-12)] leaflets; styles 3 (vs. 2); and ovary 1-locular with parietal placentation (vs. ovary 2-locular with axile placentation).
KEYWORD	Begonia fangii; Begonia hemsleyana; Begonia hemsleyana var. kwangsiensis; China; Chromosome number; Guangxi; Limestone flora; New species; Sect. Coelocentrum;
ARTICLE INFO	Botanical Bulletin of Academia Sinica, Volume 46 Number 1 January 2005, page 83-89, 7 pages
PUBLISHER	Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan, Republic of China