Cassia cowanii var. guianensis (Sandwith) H.S.Irwin & Barneby

  • 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 1: 1-454.

  • Family

    Caesalpiniaceae

  • Scientific Name

    Cassia cowanii var. guianensis (Sandwith) H.S.Irwin & Barneby

  • Type

    Holotypus (2 sheets), K! = NY Negs. 1436 (fl), 1437 (lvs).—Two paratypi cited (Hohenkerk in FD 790, 790A) are conspecific (K!).

  • Description

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    Variety Description - Characters as given in key [Key: "Fls relatively large, the long sepals 7.5-10 mm, the petals when fully expanded 13.5-18 mm, the filaments of 3 long abaxial stamens 17-22 mm and of the 2 interposed antepetalous ones 6-9 mm; s.-e. Venezuela, Guyana and Surinam. Anthers usually glabrous, rarely minutely pilosulous (in Venezuela); ovules ±70-80."]; petals usually deep yellow, rarely orange-vermilion.—Collections: 9. Several collectors comment on the fragrance of the flowers. The sap wood is said by Hohenkerk to be yellowish, the heartwood dark red-brown.

    Distribution and Ecology - Margins and openings of mixed forest, rain-forest, or on river banks above flood-water, 100-250 m, local along the lower Essequibo, the Demerara, Berbice and lower Corantijn rivers in Guyana and adjoining Surinam, and on Serrania de Imataca in far e. Venezuela (Delta-Amacuro and adjoining Bolivar).—Fl. III, V, X, sometimes when partly defoliate, the optimum season of bloom unknown.

  • Common Names

    Canafistola montahera, warua

  • Distribution

    Guyana South America| Suriname South America| Bolívar Venezuela South America| Delta Amacuro Venezuela South America|