Mimosa aurivillus var. warmingii Barneby
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Authors
Rupert C. Barneby
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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.
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Family
Mimosaceae
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Scientific Name
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Type
199c. Mimosa aurivillus Martius var. warmingii Barneby, var. nov., petiolis brevibus (5-11 mm) foliolisque utrinque parce subaequidense stellatis cum var. aurivillo conveniens, ab ilia flosculis minimis (±1.5 mm longis) necnon legumine angusto 3-3.5 (nec
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Description
Variety Description - Treelets of unknown stature, the young stems shaggy with plumose setulae less than 1 mm, the subconcolorous lfts thinly stellate on both faces; stipules 3-4 x 0.5-0.7 mm; leaf-stalks 20-45 mm, the petiole 5-10 mm; lf-formula (i-)ii(-iii)/ 10-14, the longer lfts 7-10 x 3-4 mm; capitula oblong or cylindric, without filaments ± 7-20 x 3-3.5 mm; calyx 0.1 mm; corolla 1.3-1.5 mm; pods 15-25 x 2.5-3 mm, (l-)2-4-seeded.
Distribution and Ecology - In woodland near 850 m, known only from the type-collection made near Lagôa Santa, 19°40'S in centr. Minas Gerais.—Fl. ±X-XI.
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Discussion
The type of var. warmingii was associated by Bentham in Flora brasiliensis with that of M. sordida, but differs materially in very short petioles and particularly in the minute flowers borne in narrowly oblong (almost cylindric) heads and in the exceptionally narrow pod. The pod is reminiscent of M. daleoides, rather than of other varieties of M. aurivillus, but the pinnae are mostly bijugate. Indumentum of the leaflets is that of var. sordida and var. aurivillus.
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Distribution
Brazil South America| Minas Gerais Brazil South America|