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The Sagraea clade (Melastomataceae, tribe Miconieae) is briefly characterized, typified, and formally treated as a section within Miconia. In addition, two new species of Miconia sect. Sagraea, endemic to the floristically diverse Massif de la Hotte of southwestern Haiti and discovered during the course of a systematic revision of the Caribbean species of this section, are here described and illustrated...
Calycogonium bairdianum, a new species, is here described from the Cordillera Central of the Dominican Republic. It is compared to C. impressum, to which it is likely related. Although Calycogonium is not monophyletic, C. bairdianum and C. impressum may be related to other species in the genus that exhibit acarodomatia formed by hairs at the two major vein junctions on the leaf abaxial surface, a...
Calycogonium formonense, a new species, is here described from the floristically diverse Massif de la Hotte of southern Haiti. It is compared to C. hispidulum, to which it is likely related. Although the genus Calycogonium is not monophyletic, C. formonense and C. hispidulum are probably related to other species, e.g., C. calycopteris, C. heterophyllum, and C. reticulatum, that exhibit reduced inflorescences...
Henriettea uniflora, which is known only from a diverse moist montane forest in the vicinity of Loma Trocha de Pey (or “Monteada Nueva”), Loma Pie de Palo, and Loma Remigio, the easternmost peaks of the Sierra de Baoruco, is described and illustrated. It is compared to species of the Henriettea squamulosa complex, especially H. squamulosa and H. ciliata. The species of this complex are characterized...
Ossaea alloeotricha, described by Urban on the basis of material with very immature flowers, has been re-collected (in flower and fruit) in the cloud forests and moist forests dominated byPinus occidentalis in the vicinity of Pic le Ciel, 2150 m, on Morne Formon of the Massif de la Hotte (western group), Haiti. The mature flowers of this species have broadly elliptic to suborbicular petals with rounded,...
Miconia howardiana, which is known only from a diverse moist montane forest in the vicinity of Loma Trocha de Pey (or “Monteada Nueva”), the easternmost peak of the Sierra de Baoruco, is described and illustrated. It is compared to phenetically similar (and probably phylogenetically related) species of theMiconia favosa complex, i.e.,M. favosa, M. xenotricha, M. campanensis M. Sintenisii, M. foveolata...
Miconia zanonii, which occurs in broad-leaved cloud forests at four localities in the Cordillera Central of the Dominican Republic, is described and illustrated. It is compared withM. krugii andM. samanensis, two probably close relatives withinMiconia sect.Chaenopleura.
Salvia paryskii, a yellow-flowered member of sectionEkmania, is described and illustrated from the narrow ridge connecting Pic Formon and Pic Macaya in the Massif de la Hotte of Haiti. The new species is compared to its closest relative,S. tuerckheimii, and differs primarily in its obovate leaves and denser inflorescences. Included is a brief discussion of the vegetation of this remote area of Parc...
Mecranium neibense is described and illustrated from the Sierra de Neiba of the Dominican Republic in broad-leaved cloud and moist pine forests near the border with Haiti. The new species is compared to its closest relative, M. puberulum, a species endemic to the Cordillera Central-Massif du Nord of Hispaniola.
Mecranium revolutum is described from the Massif de la Hotte of Haiti and compared with three similar species that are also endemic to this interesting region. The lower elevation (1000–1600 m) forests of Parc National Pic Macaya are discussed briefly.
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