Mimosa microcephala subsp. microcephala var. communis

  • 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 microcephala subsp. microcephala var. communis

  • Type

    285/IIa. Mimosa microcephala Humboldt & Bonpland ex Willdenow subsp. microcephala var. communis Barneby, var. nov., a var. microcephala haud nisi corollae lobis (ut apud omnes alias speciei formas) 1-nerviis, nec striatim 3-nerviis, diversa.—Venezuela. Bo

  • Synonyms

    Mimosa microcephala Humb. & Bonpl. ex Willd.

  • Description

    Variety Description - Leaf-formula xii-xxx/30-50, the rachis of longer pinnae 16-28(-30) mm, the longer lfts to (2-)2.3-4.5 x 0.4-0.8 mm, obtuse; corolla either glabrous or puberulent, the lobes 1-nerved; filaments pink; pods (well fertilized) 3-6, exceptionally to 9.5 cm long, 6-10(-16)-seeded.

    Distribution and Ecology - In rock-savanna, about outcrops, and on rocky streambanks, of apparently bicentric range: locally common at 400-1200 m on and around the Gran Sabana in Bolívar, Venezuela, and around the headwaters of rio Branco in Terr, do Roraima in Brazil (there perhaps below 400 m); and sympatric with var. microcephala on rock outcrops near and below 200 m along the middle Orinoco in Vichada and Guainia, Colombia and in n.-w. Amazonas and adj. w. Bolívar and Apure, Venezuela.—Fl. IX-V, perhaps sporadically in other months.— Mastranto (Vichada). Map 43.

  • Discussion

     

  • Distribution

    Venezuela South America| Bolívar Venezuela South America| Brazil South America| Roraima Brazil South America| Colombia South America| Vichada Colombia South America| Venezuela South America| Apure Venezuela South America| Bolívar Venezuela South America|