Fig. 10.

Diversity of flower tepal number and color in Chinese begonias. A–E Male flowers: A Begonia wangii Yu (tepal 2); B B. peltatifolia (tepal 3, more often 4); C Begonia chishuiensis T. C. Ku (petal 4); D, E B. longifolia (tepal normally 4, rarely 6); F–K Female flowers: F B. henryi (tepal 2); G Begonia filiformis Irmsch. (tepal 3); H Begonia silletensis subsp. mengyangensis M. Tebbitt et K. Y. Guan (tepal 4); I Begonia crocea C. I Peng (tepal 5); J-K B. longifolia (tepal normally 6, rarely 8).