Mimosa grahamii var. grahamii

Title

Mimosa grahamii var. grahamii

Authors

Rupert C. Barneby

Scientific Name

Mimosa grahamii A.Gray var. grahamii

Description

40a. Mimosa grahamii A. Gray var. grahamii. M. grahamii A. Gray, 1853, l.c., sens. str.— "Mountain valleys of Sonora, between the San Pedro and the Sonoita, Sonora; Sept. ([C. Wright] 1042)."—Holotypus, GH!; isotypus, NY! —Mimosopsis grahamii (A. Gray) Britton & Rose, N. Amer. Fl. 23(3): 178. 1928.

M. lemmonii A. Gray, Proc. Amer. Acad. Arts 19: 76. 1883.—"S. Arizona, Lemmon, in a canon near Fort Huachuca, in flower. . . and Cave Cañon, in fruit."— Syntypi, GH!; presumed isotypi, Lemmon s.n., dated "1883" (fl, fr), NY! Lemmon 2692, US! Mimosopsis lemmonii (A. Gray) Britton & Rose, N. Amer. Fl. 23(3): 176. 1928. Mimosa grahamii var. lemmonii (A. Gray) Kearney & Peebles, J. Wash. Acad. Sci. 29: 482. 1939.

M. endlichii Harms, Repert. Spec. Nov. Regni Veg. 18: 93. 1922.—"Chihuahua, westlich von Rio San Juan ... 1700 m... IV. 1906."—Holotypus, Endlich 1256, ⁺B; phototypus + fragm, US!; clastotypus, fragm, NY!—Equated with Mimosopsis lemmonii by Britton & Rose, 1928: 176.

Mimosopsis durangensis Britton & Rose, N. Amer. Fl. 23(3): 175. 1928.—"Near Huasemote, Durango, August 15 [fr], 1897, [J. N.] Rose 3491."—Holotypus, US!; clastotypus, fragm., NY!

Stems, lvs and fls varying from softly gray-puberulent overall to nearly glabrous; otherwise as in key to varieties.

In open stony places and on rocky stream banks, in oak woodland and desert grassland, 1150-1850 m, scattered along the e. foothills and lower slopes of Sa. Madre Occidental from Durango n. through Chihuahua to n.-e. Sonora, thence n. in United States to s.-e. Arizona and s.-w. New Mexico (Isely, 1973, map 31).—Fl. IV-VIII.