Abstract
Phaeostemma surinamensis Morillo & Krings, sp. nov., anew species of Apocynaceae (Asclepiadoideae, Gonolobinae) is described and illustrated, and the new combination Phaeostemma fucata (Woodson) Morillo & Krings, comb. nov., is made. The new species, known only from a lowland wet forest of Suriname, seems to be closely related to Phaeostemma fucata, which is an endemic to Ptari-tepui, a sandstone mountain in the southeastern edge of the Venezuelan Guayana.
Highlights
Heretofore, five names have been published in the genus—P. brandonianum Silveira, P. glaziovii E
Lachnostoma and Phaeostemma have been treated as nomenclatural synomyms of Matelea Aubl. sensu lato (Spellman and Morillo 1976; Morillo 1984; Fontella-Pereira et al 1985), recent morphological studies (Morillo 2012), indicate that these genera differ from Matelea by the combination of dense, ubiquitous, long brown or yellowish-red pubescence in stems, leaves and inflorescences, corollas medium to large (12–37 mm in diameter), narrowly to broadly tubular, campanulate to subcampanulate, staminal corona segments (Cs) well-developed, connate to the base of the anthers, apically bifid or digitate, nectar chambers conspicuous, anthers radially prominent, with a concave outer face, retinacula broadly sagittate, and follicles ovate-oblong, with 5 wings and several conical projections
Very little is known regarding the status of this species
Summary
A new species and a new combination in Phaeostemma (Apocynaceae, Asclepiadoideae, Gonolobinae). Struwe | Received 17 October 2013 | Accepted 17 December 2013 | Published 16 January 2014 Citation: Morillo G, Krings A (2014) A new species and a new combination in Phaeostemma (Apocynaceae, Asclepiadoideae, Gonolobinae).
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