Mimosa quadrivalvis var. floridana

Title

Mimosa quadrivalvis var. floridana

Authors

Rupert C. Barneby

Scientific Name

Mimosa quadrivalvis var. floridana (Chapm.) Barneby

Description

190i. Mimosa quadrivalvis Linnaeus var. floridana (Chapman) Barneby, comb. nov. Schrankia floridana Chapman, Fl. South. U.S. ed. 2, Suppl. 2, 683. 1892.—"Sandy barrens, South Florida."—No typus found by Isely (1971a: 244) in hb. Chapman. at US; fragments at NY! annotated by Britton as "from the type specimen" were collected at Manatee, Florida by J. H. Simpson.—Morongia floridana (Chapman) A. Heller, Cat. N. Amer. pl. 4. 1898. Leptoglottis floridana (Chapman) Small ex Britton & Rose, N. Amer. Fl. 23(3): 139. 1928. Schrankia microphylla var. floridana (Chapman) Isely, Castanea 51: 402. 1986.

Schrankia uncinata sensu auct. plur.; non Willdenow (q.v. sub var. angustata).

Essentially like the sympatric forms of var. angustata with relatively long, long-beaked, distantly aculeate pods, but the lfts prominulously pallid-venulose dorsally, the midrib 1-2- branched above mid-blade or rarely simple.

In palmetto scrub and on white sands of middle and n.-e. Florida and extreme s.-e. Georgia, within and partly overlapping the range of var. angustata (Isely, 1973, map 48, sub Schrankia floridana).—Fl. IV-IX.

The var. floridana resembles var. nuttallii in leaflet-venation, but the leaflets are only minutely apiculate or obtuse, not sharply triangular-apiculate, and the capitula are on the average smaller.