Arabis platysperma var. howellii (S. Watson) Jeps.
Brassicaceae
C.H.Q. (1960)
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Chas H. Quibell
1454
1952-08-28
8/28/52
United States, California, Fresno, Mott L., 10,000', 1 1/2 m. from headwaters N. Fk. Mono Crk. 2 1/4 m. w. of 12,841' Red and White Mt. on Sierran crest. Lake faces s.w. on step in 1500' glacial canyon.
Sparse stands small Pinus albicaulis, P. Murrayana, some Tsugas around lake; latter two to 10,500' protected slopes; P. monticola with them s. & e. slopes; P. albicaulis Krumholtz to 11,500' crests where footholds. Arabis, dozen other perrenias, on dry granitic soil of rocky 15' ridge parallel and s. of outlet on step.