Teodardo Calles

Re-establishment of Stylosanthes gracilis (Leguminosae) at species level

SummaryIn most taxonomic revisions of Stylosanthes Sw., Stylosanthes gracilis Kunth has been regarded as a variety or even a synonym of S. guianensis (Aubl.) Sw. This has created considerable confusion among scientists working with the latter species which is an agriculturally important tropical forage and cover legume. This study collected taxonomically relevant evidence, for evaluating S. gracilis as a valid species. Since the type specimen is lost, a collection from the same location as the original type is proposed here as a neotype.

Stylosanthes (Leguminosae, Dalbergieae) of Venezuela

Abstract Calles T. & Schultze-Kraft R.: Stylosanthes (Leguminosae, Dalbergieae) of Venezuela. — Willdenowia 40: 305–329. A1–A8. — Online ISSN 1868-6397;

Stylosanthes falconensis (Leguminosae, Papilionoideae, Dalbergieae), a new species endemic to Venezuela

SummaryDuring a revision of Venezuelan species of Stylosanthes Sw., two quite distinct specimens were found. After a detailed survey of the literature and herbarium material, it was concluded that they belong to an undescribed species. The new species Stylosanthes falconensis Calles & Schultze-Kr. (belonging to section Styposanthes Vogel), endemic to the Sierra San Luis in the State of Falcón, is here described. An illustration is provided and the differences between the new taxon and Stylosanthes hamata (L.) Taub., a closely related species, are presented.