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New or Noteworthy Orchids for the Venezuelan Flora IX: New Taxa, New Records, and Nomenclatural Changes, Mainly from the Guayana Shield and Northern Amazonas

1993; Missouri Botanical Garden Press; Volume: 3; Issue: 2 Linguagem: Inglês

10.2307/3391516

1945-6174

Germán Carnevali, Ivón Ramírez de Carnevali, Germán Carnevali, Ivón Ramírez de Carnevali,

Plant Diversity and Evolution

Research on the Orchidaceae of the Venezuelan Guayana and neighboring areas has yielded several novelties, new records, and nomenclatural changes.Nine species (one Dichaea, two Lepanthes, one Maxillaria, three Pleurothallis, one Sarcoglottis, and one Uleiorchis ), a natural hybrid in Maxillaria, and two subspecies (one Myoxanthus and one Stelis) are newly described.New synony¬ mies are proposed in Campy locentrum, Habenaria, and Octomeria.In addition, several miscellaneous country records are reported.Fifteen of the taxa presented are illustrated.Continued studies related to the orchid treatment for Steyermark et al.'s Flora of the Venezuelan Guayana have yielded several novelties and no¬ menclatural changes for the orchid flora of the area and from other parts of the Neotropics.These nov¬ elties have resulted from the study of material re¬ ceived from several recent expeditions or from the study of critical material mainly at the Orchid Her¬ barium of Oakes Ames (AMES), the Herbario Na¬ cional de Venezuela (VEN), and the Missouri Bo¬ tanical Garden (MO).The taxa are arranged alphabetically by subfamilies, subtribes, and genera, following Dressier (1990).