TITLE	Begonia picturata (sect. Coelocentrum, Begoniaceae), a new species from limestone areas in Guangxi, China
AUTHOR	Yan LIU Guangxi Institute of Botany, Guangxi Zhuangzu Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, P.R. China Shin-Ming KU Herbarium, Research Center for Biodiversity, Academia Sinica, Nangang, Taipei 115, Taiwan Shin-Ming KU Herbarium, Research Center for Biodiversity, Academia Sinica, Nangang, Taipei 115, Taiwan Ching-I PENG Herbarium, Research Center for Biodiversity, Academia Sinica, Nangang, Taipei 115, Taiwan
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ABSTRACT	Begonia picturata, a new species of sect. Coelocentrum from the limestone areas in southwestern Guangxi Zhuangzu Autonomous Region, China, is described and illustrated. A somatic chromosome number of 2n= 30 was determined. Begonia picturata resembles B. cirrosa in having villous peduncles and the pedicels, outer tepals (abaxial surface), ovaries and capsules villous-setose or hispid-setose with red trichomes. Begonia picturata, however, is distinct in that the leaves are maculate (vs. maculation absent) and densely villous-setose or tomentose-setose (vs. sparsely to moderately pilose or pilose-setose) on the upper surface.
KEYWORD	Begonia cirrosa; Begonia masoniana var. maculata; Begonia morsei; Begonia picturata; Begonia sect. Coelocentrum; Begonia variegata; Begoniaceae; China; Chromosome number; Guangxi; Limestone flora; Medicinal plant; New species; Rare species;
ARTICLE INFO	Botanical Bulletin of Academia Sinica, Volume 46 Number 4 October 2005, page 367-376, 10 pages
PUBLISHER	Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan, Republic of China