Abstract: Three tropical orchid genera, namely Porpax, Callostylis and Acriopsis, are described in the present paper as being new to China. Each is represented by one species. They are all found in southern Yunnan.Porpax ustulata (Par. et Rchb. f. ) Rolfe was collectcd by C. W. Wang (no. 75398) in Nan Chiao (now Meng Zhe) at an altitude of 1450 m. in June 1938. The only available specimen contains several flowering plants. They are identical with those illustrated by G. Seidenfaden in Bot. Tidsskr. 72: 9, fig. 7. 1979, except the lip which is shortly fimbriate at the anterior margin in our plants.

Key words: occurrence, porpax, callostylis, acriopsis, China

摘要： 吴征镒教授根据他对中国植物区系的多年研究,将台湾、粤南(包括海南)、桂南、滇南与滇西南划归古热带植物区的马来亚森林植物亚区,并将滇南、滇西南与缅甸郸邦、泰国北部、老挝北部放在一起,称滇缅泰地区。这种见解显然是符合客观情况的。兰科植物的分布也支持这种见解。

关键词: 兰科盾柄兰属, 美柱兰属, 合萼兰属