CATALOGUE. 29 
City, Nevada. Frequent in sub-alkaline soils under sage-brusli in Carson and 
Humboldt Valleys, Nevada, and Salt Lake Valley, Utah. April-June. (118.) 
Lepidiqm intermedium, Gray. AVestern specimens of tins species are 
most usually apetalous, and either glabrous or pubescent. Dr. Hooker appears 
to consider it the same with L. ruderale, L., Tibetian specimens of which, 
m Herb. Gray., are identical in shape and size of the pod with some of the 
Western American ones. The petaled form is reported from the Indian 
Territory, Western Texas, New Mexico, and Utah. The apetalous form 
has a wider range, from Hudson's Bay and the Arctic Circle to the Pacific, 
south to Illinois, and much n.iore rarely along the central ranges into New 
Mexico. Found frequently in the valleys and on the foot-hills of Nevada and 
of Salt Lake Valley ; 4,500-6,500 feet altitude ; May-July. (119.) 
Lepidium alyssoides, Gray. PL, FendL, p. 10. Glabrous ; stems diffuse 
from a perennial root; leaves narro^^-ly linear, acute, narrowed at base, entire, 
sometimes pinnately 3-5-lobed ; racemes densely corymbed ; petals round' 
spatulate, thrice longer than the calyx ; stamens G ; pods ovate, wingless, 
scarcely emargiiiate, glal)rous ; style very short.-6-12' high; flowers conspi- 
cuous ; siHques 1" in length, with a minute emargination ; secondarv leaves 
sometimes bi-pinnatifid. Western Texas to Arizona. Foot-hills^ of the 
Trinity Mountains near Humboldt Sink, and of the West Humboldt IFoiin- 
tains, Nevada ; in flower ; May, June. (120.) 
Lepidium montanum, Nutt. Biennial, erect or decuml,ent, diffusely 
branched; leaves pinnatifld, segments more or less dissected, especiallv upon 
the upper margin; uppermost leavers with fcNver segments, trifid or entire ; 
flowers in dense corymbed racemes ; petals round-s|)atulate, twice longer than' 
the sepals; pods orbicular, shghtly emaroiiuit(>, wiugl.v.s, or souK-whaHvinged 
and ovate.— Glabrous, or hoary with a short gniyisli pu])esceiire: variable 
also in the section of the leaves and in lialnt of growtli ; fruiting racemes 
rather short. Southern California and Sonora to the CoIum))ia Biver. Fre- 
quent in the valleys of Nevada and Utah, growing in damp sub-alkaline soils ; 
4,500-6,000 feet akitude ; May-September. (121.) 
Var. alpinum. Witli decidedly perennial root-stock; glal)rous ; leaf- 
segments somewhat broach-r, and style longer. Chiefly remarkable 'for its 
habitat— a damp rocky gorge of Cottonwood Cation in the Wahsatcb, at an 
elevation of 9,000 feet; July, August. (122.) 
Lepidium ? Leafless specimens, long past maturity ; 2° high, erect, 
