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Gustavia johnclarkii and G. hubbardiorum, two new species from the wet forests of northwestern and Amazonian Ecuador, are described and illustrated. In addition, the two subspecies of both G. speciosa and G. macarenensis are elevated to species, and the new combination Gustavia paucisperma is provided. A justification for these changes is presented.
Grias angustipetala and G. ecuadorica, two new species from the wet forests of western Ecuador are described. Grias angustipetala occurs in the Awá Indígenous Territory and Reserva Ecológica Cotacachi-Cayapas in the Esmeraldas and adjacent Carchi Provinces between 50–1800 m elevation. Grias ecuadorica is found in the Los Ríos and Bolívar Provinces between 70–600 m elevation. The new species are illustrated...
Eschweilera awaensis and Grias subbullata, two new species known from the wet forests of northwestern Ecuador, are described. Eschweilera awaensis occurs in Esmeraldas, Los Ríos, and the westernmost parts of the Pichincha provinces between 25–650 m elevation. Grias subbullata, is known only from two localities in the Santo Domingo de los Tsáchilas province between 900–1670 m elevation. The new species...
Grias theobromicarpa, a new species from northwestern Ecuador is described. This species is found in wet forests at ca. 1500 m elevation, and is distinguished by its erect petals that conceal the androecium, filaments fused to form a very distinct staminal tube, anthers that are oblong with cucullate connectives enclosing most of the thecae, and especially by its fruits, which are prominently ridged...
A new species,Grias longirachis S. A. Mori & J. L. Clark, with enclosed calyx in bud and unusually long inflorescence rachises, is described based on collections from northwestern Ecuador. A key to the species ofGrias is provided.
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