Carnevali, G. & J.T. Atwood. 1996. Two New Species in the Maxillaria rufescens Complex from Central America. Lindleyana 11(1): 27-33.

Abstract. Two new species in the Maxillaria rufescens complex are described from Central America. Maxillaria dressleriana Carnevali & J.T. Atwood is related to M. hedwigae Hamer & Dodson but flowers are red-maroon and are held erect on short pedicels, besides other differences in the shapes of the floral segments; it is known from Costa Rica and Panama. Maxillaria moralesii Carnevali & J.T. Atwood is only known with certainty from the Central Valley of Costa Rica and is related to the South American M. acutifolia Lindley but it is a larger flower with clear yellow-green flowers and differently shaped perianth segments. Illustrations and discussion on affinities of both new species are provided.

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