CERTAMEN MELASTOMATACEIS XXXVI. John J. Wurdack U. S. National Herbarium, Smithsonian Institution This installment concludes the bulk of recent melastome novelties from Bahia, Brazil. Some problems remain unresolved, especially in Tibouchina and Microlicia ; also a small assemblage of descriptions pend receipt of material from Brazil for holotjrpe designation. The coastal rain forest of Bahia is a mixture of lower Amazonian -Guianan and infra-Organ Mountain melastomes. In the interior mountains, Marcetia has proliferated in a morphologic set rather dissimilar to the genus elsewhere. Tibouchinopsis is still known only from Bahia. Merianthera , described from Espi-rito Santo originally, has recently been found in southern Bahia (5 km NW of Itamaraju, Mori , Silva, & dos Santos IO723 ) . No Bahia collections of the following geographically restricted genera have been seen yet, but possibly may be expected: Lithobi-um (Minas Gerais), Svitramia (Minas Gerais), Pleiochiton (Rio de Janeiro to Santa Catarina), Behuria (Minas Gerais, Rio de Janeiro, Sao Paulo), Benevidesia (Rio de Janeiro), Dolichoura (Espirito Santo), Bisglaziovia (Rio de Janeiro), and Eriocnema (Minas Gerais). For the four last-named genera, no modern collections have been seen, but Brade described a second species of Benevidesia in 1935* From a provincial (Washington, D.C.) viewpoint, more field activity in the Organ Mountains and periph-eral regions certainly is much to be desired. The following covers the species totals for each melastome genus currently ascribed to Bahia, the data assembled from Cogniaux* monograph, publications by Ule, Hoehne, Markgraf, and Brade, and the recent specimen acciomulation; the numbers in parentheses are species restricted to Bahia: Meriania 2 (l); Merianthera 1 (0)j Huberia 2 (O); Bertolonia h (2); Trembleya 2 (0); Lavoisiera 7, including 1 unpublished (5); Microlicia kO, including 3 unpublished (32); Chaetostoma 3 (3)i Rhynchanthera 5 (0); Cambessedesia 10, including 1 unpublished (6); Pyramia 1 (1); Marcetia 3I, including 1 unpublished (23); Macairea 3 (2); Comolia 1 (O) ; Fritzschia 1 (l); Nepsera 1 (O); Acisanthera 5 (0); Aciotis 8 (3); Tibouchinopsis 2 (2); Tibouchina 3I. including 1 unpublished (18); Pterolepis I6 (t); Desmoscelis 1 (O); Cono-stegia 1 (0); Miconia 5^, including 1 unpublished (6); Toe oca 1 (0)V Clidemia 8 (O) ; Bellucia 1 (O); Henriettea 1 (O); Leandra I6 (2); Platycentrum 1 (O); Ossaea h (l); Mouriri 6 (2). The total of 270 species (llT endemic ) is a respectable one, considering the large area of unhospitable caatinga in Bahia, and will probably be augmented with future collecting. MICROLICIA PINHEIROI Wurdack, sp. nov. 121
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