New or Noteworthy Orchids for the Venezuelan Flora. VII. Additions in Maxillaria from the Venezuelan Guayana

T w Maxillaria species from the Venezuelan Guayana, M. foldatsiana and M. santanae, are described and illustrated.One highly variable species, M. auyantepuiensis, is discussed, and a new subspecific taxon is proposed.Maxillaria tenuis is noted as a new record for the Venezuelan flora.Maxillaria Ruiz & Pavón is the largest genus of the subtribe Maxillarinae, with about 400-4 species ranging from Mexico and the West Indies to southern Brazil.The genus reaches its highest development in the Andes, but le America, southern Brazil, the Amazonian a and the ' We are grateful to Lic.Bruno Manara for the drawings and criticisms of the Latin Wr es and to Dr. Julian S suggestions and a reading of the manuscr santanae.For cr of the Venezuelan o Foldats, Gilberto Morillo, and jai Carnevali for their ipt.We a are indebted to Mr. Darko Elakovich for his drawings of M.