Chamaecrista tragacanthoides (Benth.) H.S.Irwin & Barneby var. tragacanthoides

Authors

Howard S. Irwin, Rupert C. Barneby

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 2: 455-918.

Family

Caesalpiniaceae

Scientific Name

Chamaecrista tragacanthoides (Benth.) H.S.Irwin & Barneby var. tragacanthoides

Type

Holotypus, collected late VII or early VIII, 1818, M! = NY Neg. 9210.

Synonyms

Cassia tragacanthoides Mart. ex Benth.

Description

Variety Description - Densely silky-pubescent throughout with very short appressed and often some longer stiffly spreading hairs to 0.5-0.8 mm, the foliage silvery or greenish-cinereous. Lvs 1-2 cm; petiole 1.5-2.5 mm; gland 0.3-0.7 mm diam, commonly drumshaped and 0.3-0.7 mm tall; rachis 3-10 mm; lfts 3-6 pairs.—Collections: 9. [Key: "Foliage densely silky-velutinous throughout with appressed sublustrous hairs, the branchlets similarly pubescent and often addition shortly setulose."]

Distribution and Ecology - Stony campo, on sandstone and quartzite, 1100-1300 m, local but locally plentiful, known only from the crest of Sa. do Espinhaço between Montes Claros and Diamantina, lat. ±16°45'-18°15'S, n.-centr. Minas Gerais.—Fl. X-VIII, probably most freely in the dry season.

Distribution

Minas Gerais Brazil South America|