Mimosa orthocarpa Spruce ex Benth,

Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, Phytotaxa 260 (3), pp. 201-222: 216

publication ID

http://doi.org/ 10.11646/phytotaxa.260.3.1

DOI

http://doi.org/10.5281/zenodo.4780179

persistent identifier

http://treatment.plazi.org/id/03E48793-FFE2-FF8D-FF30-FA0BBC32BF68

treatment provided by

Plazi

scientific name

Mimosa orthocarpa Spruce ex Benth
status

 

32. * Mimosa orthocarpa Spruce ex Benth 

The occurrence of Mimosa  orthocarpa in Bolivia represents a surprisingly large range extension for a species previously unrecorded from south of the Amazon and known to Barneby (1991) from the Amazon, northern South America and parts of Central America. Several collections (J.R.I. Wood et al. 22861, LPB, K, USZ, J.R.I. Wood & D. Soto 27134, LPB, K, USZ and D. Villarroel et al. 2046, USZ) from two disjunct localities in Bolivia—ca. 50 km S of Concepcion (Las Trancas and El Encanto), and Cerro Mutún, German Busch—can be attributed here. Mimosa  orthocarpa is characteristic of granite rock platforms, particularly in the Lomerio area, a habitat also mentioned by Barneby (1991) in his notes on this species from northern South America. The species is morphologically close to and easily confused with M. tobatiensis Barneby & Fortunato, another species here newly documented for Bolivia (see below). These two species, distinguished by details of leaflet venation, indumentum, and pod shape (M. orthocarpa with larger, more robust and almost linear pods cf. the slightly falcate chartaceous pods of M. tobatiensis) and previously considered to be remotely allopatric putative sister species ( Barneby 1991), are thus now known to co-occur in Bolivia.

LPB

Herbario Nacional de Bolivia, Universidad Mayor de San Andr�s

USZ

Museo de Historia Natural Noel Kempff Mercado -- Universidad Aut�noma Gabriel Ren� Moreno

Kingdom

Plantae

Phylum

Magnoliophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Mimosa