Monographs Details: Mimosa oblonga var. pinetorum 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.
Description:Variety Description - Different from var. oblonga in short scabrous setae of stems, these unarmed or only randomly armed with weak aculei to ± 1 mm; stipules 1-3.5mm; leaf-stalks obsolete or to 3.5 mm; rachis of longer pinnae 8-35 mm; larger lfts 1.5-4.5 x 0.4-1.5 mm, 3-4 times as long as wide; peduncles 7-15 mm; capitula without filaments 4-7 x 3-3.5 mm; bracts 0.5-0.8 mm; corolla 1.3-1.5 mm, both tube and lobes thinly retrostrigulose.
Distribution and Ecology - In wet campo near 900(-?) m, known only from the w. slope of Sa. do Mar s. and s.-w. of Curitiba (Pinhaes; mun. Mandirituba; Piraquara) in e. Paraná.—Fl. XII-III.
The var. pinetorum is notable in the species for weak armature, short, densely scaberulous cauline setae, and tiny moriform capitula. It appears to replace var. oblonga locally, and form an enclave within the whole range of the species.
Distribution:Brazil South America
| Paraná Brazil South America