Mimosa myriadenia (Benth.) Benth. var. myriadenia

  • 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 myriadenia (Benth.) Benth. var. myriadenia

  • Type

    1b. Mimosa myriadenia (Bentham) Bentham var. myriadenia. M. myriadenia Bentham, 1875, l.c., sens. str., based on Entada myriadenia Bentham, J. Bot. (Hooker) 2: 133. 1840.—"Rio Negro, Schomburgk, n. 917."—Holotypus, K (hb. Benth.)!

  • Synonyms

    Entada myriadenia Benth., Mimosa myriadenia (Benth.) Benth., Acacia paniculiflora Steud.

  • Description

    Variety Description - Leafstalks of longer lvs 7-14.5 cm, the petiole 1.3-3 cm, the longer interpinnal segments 6-10(- 12) mm; pinnae of longer lvs 9-16(-18)-jug., the rachis of longer ones 3.5-7 cm, the interfoliolar segments (1.4—) 1.5—3.5(—4) mm; lfts of longer pinnae 16-26-jug., those near mid-rachis broadly or narrowly oblong from variably inequilateral base, obliquely mucronulate at apex, the longer ones 5-9.5 x 1.5-3 mm, 1.8-3.2 times as long as wide, (2-)3-4(-5)-nerved dorsally, the inner posterior nerve usually brochidodrome beyond mid-blade, the intervenium usually densely lepidote overall, either glabrous or pilosulous, the scales rarely few and far between.

    Distribution and Ecology - Climbing into and festooning riparian forest and forming tangled masses in forest openings, in capoeira, in pasture thickets and along roadsides, mostly in lowland, non-inundated forest but attaining 490 m in Guyana, common and locally abundant in the three Guianas, adj. Venezuela, and lower Amazon basin in Amapá and Pará, Brazil, in Venezuela w. and n.-w. to the sources of río Orinoco in T. F. Amazonas and to the Maracaibo basin in Zulia, in Brazil w. to Roraima and along, but scarcely s. of, the Amazon itself to ±66°W; apparently disjunct at 450 m at foot of Cordillera Oriental in Meta, Colombia (Villavicencio; Cord. Macarena), and in lower Magdalena valley; and remotely so in prov. Heredia and San José, Costa Rica.—FI. VIII-II, and sporadically throughout the year.—Raspa (Venezuela); hiri-hiri-balli (Guyana). Map 1.

  • Discussion

     

  • Distribution

    Brazil South America| Pará Brazil South America| Amapá Brazil South America| Amazonas Brazil South America| Roraima Brazil South America| Guyana South America| Venezuela South America| Amazonas Venezuela South America| Zulia Venezuela South America| Colombia South America| Meta Colombia South America| Costa Rica South America| Heredia Costa Rica Central America| San José Costa Rica Central America|