Wednesday, January 6, 2021

[Botany • 2020] The Brazilian Atlantic Forest Genus Bocagea (Annonaceae) Revisited, with Two New Species


Bocagea asymmetrica Mello-Silva & J.C.Lopes

in Mello-Silva & Lopes, 2020. 

Abstract
Bocagea, a distinctive genus of tribe Bocageeae (Annonaceae), is revisited here. It is endemic to the Brazilian Atlantic Forest and has been for almost 200 years represented by only two species, B. longepedunculata and B. viridis. Recent collections from Espírito Santo and São Paulo States produced two new species, described here. The species of Bocagea are rare plants, all of them classified at least as endangered.

Keywords: Magnoliids, New species, Atlantic Forest

FIGURE 1. Bocagea asymmetrica Mello-Silva & J.C.Lopes (Pirani 3460). 
A. Branch with buds and flower. B. Flower in anthesis showing stamens and carpels. C. One monocarp.

FIGURE 2. Bocagea asymmetrica Mello-Silva & J.C.Lopes (Mello-Silva 3142).
 A. Scattered individuals in a remnant of Atlantic Forest in Linhares, Espírito Santo State. B. An individual of the same population at the edge of the forest. C. Close-up of the patent branches, with pendulous leaves.
Photographs by Renato Mello-Silva. 


Bocagea asymmetrica Mello-Silva & J.C.Lopes, sp. nov.

Etymology:—Named for the asymmetrical leaf base.


Bocagea moeniana Mello-Silva & J.C.Lopes, sp. nov.

Etymology:—The species is named for its type locality, in Serra do Mar, or the muralha (the Wall; in Latin, moenia), so called because it posed obstacles to the incursions of the bandeirantes (frontiersmen serving the Portuguese) in their search for land and wealth in inland Brazil (Queiroz 1954, Almeida 2012).


Bocagea longepedunculata Martius (1841: 45).

Etymology:—Referring to the long pedicels, longer than those of any other species in the genus.


  Renato Mello-Silva and Jenifer De Carvalho Lopes. 2020. The Brazilian Atlantic Forest Genus Bocagea (Annonaceae) Revisited, with Two New Species. Phytotaxa. 475(4); 279–288. DOI: 10.11646/phytotaxa.475.4.5