164 
BOTANY. 
above; leaves somewhat rigid, glaucous and punctate-reticulated ; the radical 
ones spatulate-lanceolate, narrowed into a petiole, dentate or incised ; the 
cauline mostly oblong, sessile and partly clasping, finely toothed or si)iuulose- 
serrate ; heads numerous ; involucres sub-globose, G" broad ; the scales very 
rigid, closely appressed, but with very long reflexed or squarrose subulate 
points ; rays numerous, rather narrow ; pappus of 2-4 very rigid deciduous 
bristles or awns. — Arctic America to Nebraska, CaUfornia, New Mexico and 
Texas. Wahsatch Mountains and Salt Lake Valley; 4,500-7,000 feet 
elevation ; August. (582.) 
Var. GEANDIFLOEA, Gray. PL Wright., 1. 98. Heads much larger; 
achenia somewhat four-sided, comj^ressed. California and New Mexico. 
Ruby Valley, Nevada ; G,000 feet elevation ; September. The same as 
Fremont's plant. (583.) 
Chrysopsis villosa, Nutt. Saskatchewan to Oregon and California, 
and eastward to Ilhnois, Kentucky and Texas. A most variable species, to 
which are referred C. canescens and echinoides, besides the following. — Var. 
HiSPiDA, Gray. Proc. Acad. Philad., Mar, 1863, p. 65. (C hisjnda, DC.) 
Hispid with rigid whitish hairs, and exceedingly scabrous ; leaves rigid, 
smaller, and very narrow. — Nearly the same form as Lindheimer's 631, but 
with fewer long spreading hairs, and the leaves are acutely lanceolate. 
Mouth of Cottonwood Canon, Utah; 5,000 feet elevation; July. (584.) 
Another form of this variety, with scarcely any spreading hairs, the whole 
plant copiously resinous- glandular, was found at Frtimont's Pass in the East 
Humboldt Mountains, and at the City of Rocks in Southeastern Idalio ; 
G-6, 500 feet elevation ; August-October. (585.) 
Var. FOLiosA. {C.foUosa, Nutt.) Stem hirsute with soft spreading 
white hairs, very leafy ; leaves obovate-oblong, 15-20" long, 4" broad, softly 
cancsccnt and silky-villous, the lower part somewhat hirsute like the stem ; 
heads in a large open corymb ; involucre of linear-subulate canescent scales. 
Scarcely distinguishable from C. canescens^ hwt whiter and more silky tluin 
C. vMlosa. Salt Lake Valley, and along the western foot of the Wahsatch ; 
4,500-5,000 feet elevation ; July, August. (586.) 
Laphamia^ Stansburii, Gray. PL Wright., 1. 101. Torrey, Stamh. 
Rep., (ed. 2,) p. 389, t. 7. Puberulent ; stems 6-12' high, many from a stout 
1 LAl'IIAMIA, Gkay. I'L HYujht. 1. Krutl scvcral-iiiaiiy-lloworea ; niys few, pistillate, fertile, 
the ligule oval or obloug, 2-3-tootlieil, scarcely exccediii<r tho dink, sometijues uoue ; disk-flowers perfect, 
