Mimosa somnians subsp. viscida (Willd.) 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
276/III. Mimosa somnians Humboldt & Bonpland subsp. viscida (Willdenow) Barneby, stat. nov. M. viscida Willdenow, Enum. pl. hort. berol. 1048. 1809, sens. ampliat.—Typus infra sub var. viscida indicatur.
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Synonyms
Mimosa viscida Willd.
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Description
Subspecies Description - Stems and lf-stks unarmed, variably villosulous, strigose, capitate-glandular or subglabrous, never densely hispid with plain setae;
Distribution and Ecology - e. Brazil (Amapá to S. Paulo, w. to Mato Grosso do Sul), Bolivia, and French Guiana; Belize.
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Discussion
I include in subsp. viscida all unarmed M. somnians found on the Brazilian Planalto other than densely hispid subsp. lasiocarpa and rare subsp. longipes distinguished by long-petiolate leaves. Glandular trichomes are found in variable density in many populations of the subspecies, but sometimes only on the fertilized ovary and pod; often they are lacking, when the epithet becomes a misnomer.
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Distribution
Brazil South America| São Paulo Brazil South America| Amapá Brazil South America| Mato Grosso do Sul Brazil South America| Bolivia South America| French Guiana South America| Belize Central America|