Abstract
A new legume species from a seasonally dry forest of the Western Río Balsas Depression, in the states of Guerrero and Michoacán, Mexico, Erythrostemon guevarafeferii, is herein described and illustrated. The new species shows morphological affinities with Erythrostemon hintonii, from which it is distinguished in having fewer leaflets per pinna, mature leaflets disposed toward the upper half of the pinnae rachises, long inflorescences on curved slender peduncles, abundant red glands on its flowers and inflorescences, and its fruit glabrous with red stipitate glands at maturity. A taxonomic key to the Río Balsas Depression species of Erythrostemon is included.
Highlights
Erythrostemon was re-circumscribed by Gagnon et al (2016)
Species of Erythrostemon are distinctive by various combinations of several morphological traits
During a revision of Caesalpinia sensu lato in Guerrero and Michoacán, several specimens identified in herbaria as Caesalpinia hintonii Sandwith proved to be morphologically distinct
Summary
Erythrostemon was re-circumscribed by Gagnon et al (2016). The neotropical genus currently includes a total of 31 species of woody shrubs or small to medium-sized trees. During a revision of Caesalpinia sensu lato in Guerrero and Michoacán, several specimens identified in herbaria as Caesalpinia hintonii Sandwith (a species recently transferred to the genus Erythrostemon, Gagnon et al 2016) proved to be morphologically distinct.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
