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We report the results of systematic vascular plant and bird surveys in Seasonally Dry Tropical Forest (SDTF) across leeward and windward elevation gradients (31–884 masl) in the Sierra Martín García (SMG), Dominican Republic. We expected to see gradual, systematic changes in plant distributions with elevation owing to the strong effect of topoclimate. In contrast, we predicted bird community composition...
The Miconieae (Melastomaceae) are a strictly Neotropical group comprising over 1900 species. The tribe is characterized by inflorescences that are terminal or axillary, but not cauliflorous (except a few species of Charianthus, Clidemia, and Mecranium), flowers subtended by only one pair of bracteoles (or none at all), with anthers that lack a pedoconnective, leaves without long acicular raphides,...
Recent phylogenetic studies incorporating DNA sequence data have corroborated the suspected non-monophyly of many currently recognized genera of tribe Miconieae (Melastomataceae), which includes about 1800 species restricted to the Neotropics. The genus Mecranium, comprising 24 species endemic to the Greater Antilles and their satellite islands, appears to be a monophyletic exception within the tribe...
Miconia sect. Calycopteris consists of 13 species endemic to Cuba and Hispaniola. In this work, we give updated descriptions, nomenclatural information, geographic distributions, citation of all specimens examined, as well as habitat descriptions for each of the six species that occur on Cuba, five of which are endemic and one shared with Hispaniola. We also provide a key for all species of the section...
The Pseudolima clade ( Miconia sect. Krugiophytum ) consists of two Puerto Rican species, M. karlkrugii and M. krugiana and one Hispaniolan species , M. inaequipetiolata. All three species display morphological characters (e.g., bulla-based hairs) that resemble those found in Miconia sect. Lima ,...
A new species of Miconia belonging to a clade diagnosed by strongly four-lobed ovaries/hypanthia and elongated calyx teeth flattened parallel to the floral radii, i.e., the Calycogonium hispidulum complex, endemic to the Sierra Maestra of eastern Cuba, is described, illustrated, and compared with related Cuban species. The discovery of Miconia becqueri brings to 15 the number of recognized species...
A new section, Miconia sect. Calycopteris, is described and characterized. It includes 15 species previously recognized within Calycogonium, Clidemia, Henriettella, Leandra, Miconia, and Ossaea. Species descriptions, nomenclatural information, specimen citations, and eco-geographical characterization for each of the eight species occurring on Hispaniola are presented, along with an identification...
Opuntia abjecta and O. militaris have been placed in synonymy under the Caribbean species O. triacantha for the past 30 years. Recent molecular phylogenetic evidence has shown, however, that O. abjecta and O. triacantha are actually in two very different clades suggesting that the Floridian endemic O. abjecta should be recognized as a distinct species. Here, we summarize major morphological differences...
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