Mimosa occidentalis Britton & Rose var. occidentalis

  • Authors

    Rupert C. Barneby

  • Authority

    Barneby, Rupert C. 1991. Sensitivae Censitae. A description of the genus Mimosa Linnaeus (Mimosaceae) in the New World. Mem. New York Bot. Gard. 65: 1-835.

  • Family

    Mimosaceae

  • Scientific Name

    Mimosa occidentalis Britton & Rose var. occidentalis

  • Type

    290a. Mimosa occidentalis Britton & Rose var. occidentalis. M. occidentalis Britton & Rose, 1928, l.c., sens. str. "Type from near Acaponeta, Tepic [=Nayarit, Mexico], July, 1897, J. N. Rose 3295 Holotypus, US!; clasto- typus, NY!

  • Synonyms

    Mimosa occidentalis Britton & Rose

  • Description

    Variety Description - Indumentum as given in key to varieties. Pods usually several per capitulum, sessile, in profile oblong, obtuse or minutely apiculate, 9-15 x 4.5-5 mm, (1—)2—3-seeded, the straight replum 0.450.6 mm wide, at maturity splitting apart at apex, the valves low-convex over each seed, the replum and valves alike densely hirsute with loose, forwardly curved, stramineous or bronzed, tapering setae resembling those of stem in length and diam., the papery valves breaking up when ripe into individually dehiscent articles ±3.5-5 mm long; seeds lenticular, in broad profile ±2.5- 3x3 mm, the testa dark brown, highly lustrous.

    Distribution and Ecology - On grassy hillsides and in openings of brush- woodland of coastal plain and foothills below 1000 m, scattered along the Pacific slope of Mexico from Nayarit to Chiapas, thence weakly e. into s. Veracruz and Belize; to be expected in Guatemala. —Fl. (VI-)VII-I(-IV), probably whenever moisture permits. Map 44.

  • Discussion

     

  • Distribution

    Mexico North America| Veracruz Mexico North America| Nayarit Mexico North America| Chiapas Mexico North America| Belize Central America| Guatemala Central America|