Senna pistaciifolia var. picta

Title

Senna pistaciifolia var. picta

Authors

Howard S. Irwin, Rupert C. Barneby

Scientific Name

Senna pistaciifolia var. picta (G.Don) H.S.Irwin & Barneby

Description

153c. Senna pistaciifolia (Humboldt, Bonpland & Kunth) Irwin & Barneby var. picta (G. Don) Irwin & Barneby, stat. nov. Cassia picta G. Don, Gen. Hist. Diehl. Pl. 2: 444. 1832.—"Native of Guayaquil [Ecuador]."—No typus found at BM or OXF; presumed isotypi, "Ex Guayaquil," hb. Pavon. 14127, MA! and s.n., FI (hb. Webb.)!

Cassia applanata N. J. Andersson, Kongl. Svensk. Vet.-Akad. Handl. 1853: 254. 1854.—"[Galapagos Is.:] . • • locis graminosis regionis mediae insulae Chatham."—Holotypus, S = photo at US! presumed isotypi, †B = F Neg. 1728, BR, K, W. (Andersson 237)!—Equated by Bentham (1871, p. 552) with Cassia picta, a disposition accepted by subsequent students of Galapagos flora.

Cassia picta sensu Robinson, Proc. Amer. Acad. Sci. 38: 149. 1902; Rudd in Wiggins & Porter, Fl. Galapagos 605, map. 1971.

Lfts always glabrous, otherwise as given in key.—Collections: 19.

Scrub thickets, forest clearings, roadsides, on Galapagos a pioneer in malpais, locally abundant on the Pacific lowlands and Andean foothills below 600 m in s.-w. Ecuador (Guayas), n.-w. Peru (Piura) and the Galapagos archipelago (Is. Fernandina, Isabela, San Salvador, Sta. Cruz, Sta. Maria, San Cristobal).—Fl. III-VII(-XII), probably throughout the year unless drought-inhibited.