Mimosa

• 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

• Type

  265bis. Mimosa sp. [Glaziou 19125, K. —Brazil. Minas Gerais: Sertão; arbuste, fl. roses. Oct- Nov].

• Synonyms

  Mimosa melanocarpa Benth.

• Description

  Species Description - Glandular and finely setose, like vars. of M. foliolosa subsp. pachycarpa. Leaf-stalks only 5-7 cm, lacking interpinnal spicules; pinnae to 10- jug., the rachis only 1.5-2 cm; lfts 20-30-jug., to 3x1 mm; capitula without filaments 5-6 mm diam.; calyx including setulose cilia of orifice 0.7-1.2 mm; corolla 3 mm, the lobes setose and glandular-setulose.

• Discussion

  This specimen, not matched among modem collections, differs from M. melanocarpa, to which it was referred by Glaziou, in much smaller leaves, shorter pinnae, smaller capitula, and externally glabrous calyx-tube. It differs from M. setosa subsp. setosa in all the same characters except the calyx; and from both in lack of interpinnal spicules. This last character suggests ser. Pachycarpae, of which it may prove to be a reduced, small-flowered member. The fruit is needed to indicate affinity.