What is "nitidobulbon"

Nitidobulbon is a genus of orchids native to Mexico, South America and Central America. It has only three known species:

• Nitidobulbon cymbidioides (Dodson, J.T.Atwood & Carnevali) Ojeda & G.A.Romero - Ecuador
• Nitidobulbon nasutum (Rchb.f.) Ojeda & Carnevali - widespread from southern Mexico through much of Central America and the northern half of South America
• Nitidobulbon proboscideum (Rchb.f.) Ojeda & Carnevali - Venezuela