Senna corifolia var. caesia (Harms) H.S.Irwin & Barneby
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Authors
Howard S. Irwin, Rupert C. Barneby
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Authority
Irwin, Howard S. & Barneby, Rupert C. 1982. The American Cassiinae. A synoptical revision of Leguminosae tribe Cassieae subtrib Cassiinae in the New World. Mem. New York Bot. Gard. 35, part 1: 1-454.
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Family
Caesalpiniaceae
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Scientific Name
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Type
Holotypus, †B = F Neg. 1666! neoholotypus, collected V.1892, P (3 sheets)! isotypus, K! = NY Neg. 1547.—C. caesia Harms ex Glaziou, 1906, p. 167, nom. nud.
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Synonyms
Cassia caesia Taub.
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Description
Variety Description - Characters as given in key. [Key: "Lfts 3-5 pairs, relatively narrow, (3.7-)4-9 x 1.5-4 cm, 1.8-2.6 times as long as wide; local but widespread in highland e.-centr. and s.-e. Goias and Sa. do Espinhago in n.-centr. Minas Gerais."]—Collections: 25.
Distribution and Ecology - Cerrado, especially about quartzite outcrops, 800-1600 m, scattered over the highlands of e.-centr. and s.-e. Goias (Chapada dos Veadeiros, Sa. Geral do Parana, Sa. Dourada, Sa. dos Cristais) and of Sa. do Espinhago (between Grao Mogol and Diamantina) in n.-centr. Minas Gerais.—Fl. III-VI; pods long persistent after fall of seeds.
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Discussion
A handsome senna, notable for the combination of foliaceous amplexicaul stipules, few firm obtuse, intricately reticulate leaflets, and exserted panicle of large glabrous flowers produced during the early months of the dry season. The pistil varies from quite glabrous to densely pilosulous, but the variation is not related to dispersal. We find no significant differences between the populations to east and west of the Sao Francisco valley, so often a significant phytogeographic boundary.
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Distribution
Goiás Brazil South America| Minas Gerais Brazil South America|