Monographs Details: Mimosa claussenii var. claviceps Barneby
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
Description:Variety Description - Macrophyllous rosette-tree ±3 m, densely hispid with coarse erect yellow-brown flagelliform setae to 2.5-6 mm long and 0.4-0.5 mm diam. at dilated base, eglandular, the long narrow lvs and elongate peduncles expanding synchronously, the extremely massive capitula oblong-ellipsoid; leaf-formula xxvii-xxxiii/25, the lf-stks 2-3 dm, the rachis of longer pinnae ±3-5.5 cm, the longer lfts attaining 8.5 x 2 mm; peduncles 11-16 cm; capitula without filaments 35-80 x 24 mm; lower 5-merous corollas ±7 mm and upper 4-merous ones ±9 mm; filaments monadelphous through 1.5-2 mm, exserted 15-20 mm; pod unknown.

Distribution and Ecology - In thin cerrado or campo rupestre about sandstone outcrops, near 1600 m, known only from the type-locality on Chapada dos Veadeiros at 14°07'S in e.-centr. Goiás.—Fl. II—III.

Discussion:

This variety and the next following differ from the rest of M. claussenii in extremely massive, long-pedunculate ellipsoid capitula and in conspicuously dimorphic flowers; they should perhaps be treated collectively as a distinct species, but are too little known to be properly evaluated. While apparently similar in growth-form, they differ from one another greatly in leaf-formula and consequently in gross appearance of detached branches.

Distribution:Brazil South America| Goiás Brazil South America|