Mimosa claussenii Benth. var. claussenii

  • 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 claussenii Benth. var. claussenii

  • Type

    242a. Mimosa claussenii Bentham var. claussenii. M. claussenii Bentham, 1842, l.c., sen. str.—"Minas Geraes, Claussen; Brazil, Pohl" Lectotypus, Claussen 19, K! = NY Neg. 1915; isotypus, G!; syntypi, Pohl d.1411 = 1216, K! NY! W!

  • Synonyms

    Mimosa claussenii Benth., Mimosa formosissima Taub. ex Glaz.

  • Description

    Variety Description - Flowering when l-4(-6) m tall, arborescent only in protected places where immune to fire; setae of homotinous stems deflexed, the longer ones 4—11(—14) mm, at base 0.5—1.2(—1.5) mm diam.; leaf-formula (ix-)xi-xxiv(-xxix)/(30-)34- 50(-55), the longer pinnae 7-15 cm and longer lfts 7-13 mm; capitula globose or plumply ellipsoid; floral bracts 4-9, exceptionally 12-15 mm; corollas subuniform 5-7.5(-9) mm.

    Distribution and Ecology - On red sandy, arenitic or rarely calcareous soils in cerrado climax, 700-1240 m, common and locally plentiful on the Tocantins-Paranaíba-São Francisco (Paracatú) watershed in e.-centr. and s.-e. Goiás, adj. Minas Gerais, and Distrito Federal, from Chapada dos Veadeiros s.-w. to Sa. dos Pireneus and s. to Sas. dos Cristais and da Tiririca.—Fl. (XI-)XII-IV(-V). Map 34.

  • Discussion

    The type-locality ofM. claussenii is unknown. Some specimens collected by Claussen are labelled "Cachoeira do Campo," but we have no evidence of the species occurring east of rio S. Francisco in modem times.

  • Distribution

    Brazil South America| Minas Gerais Brazil South America| Distrito Federal Brazil South America|