What is "pachystoma"

Pachystoma is a genus of orchids ( family Orchidaceae). The genus has three currently recognized species (as of June 2014), distributed across the Himalayas, China, Southeast Asia, northern Australia, New Guinea and New Caledonia.

• Pachystoma ludaoense S.C.Chen & Y.B.Luo - Taiwan
• Pachystoma nutans S.C.Chen & Y.B.Luo - Myanmar
• Pachystoma pubescens Blume - Guangdong, Guangxi, Guizhou, Hainan, Taiwan, Yunnan, Assam, Bangladesh, India, Nepal, Andaman and Nicobar Islands, Indochina, Borneo, Java, Lesser Sunda Islands, Malaysia, Maluku, Sumatra, Philippines, Queensland, Northern Territory, New Guinea, New Caledonia