NOVITATES OCCIDENTALES. 119 
Boisduvalia bipartita. Erect and simple, or with a few 
decumbent branches from the base, a foot high or somewhat 
less, the herbage pale and softly villous: leaves lanceolate 
and linear-lanceolate, or the floral ovate-lanceolate, all entire 
or obscurely and remotely denticulate: corolla white, each 
petal parted almost to the base into two unequal lobes, the 
smaller one about two-thirds the length of the other: 
capsule villous: seeds few and large. 
Sandy dry bed of the Arroyo del Valle, Alameda Co., Cali- 
fornia, 14 June, 1895. A most remarkable species, on 
account of the regularly unequal lobes of the very deeply 
parted petals; the open corolla invariably appearing as if 
composed of eight petals, four long and four short. 
Aster leuecanthemifolius. Annual or biennial, stout, 
rigid, erect, a foot high or more, somewhat divaricately and 
quite loosely branching; herbage pale and appearing 
glaucous, but really cinereous-puberulent as seen under a 
lens: lowest leaves 2 inches long, spatulate-obovate, coarsely 
and deeply crenate-serrate, the teeth with a short rigid 
spinous appendage; cauline leaves similar but scattered and 
small, 4 to 1 inch long: heads small; involucre turbinate, 
the bracts with short herbaceous spinescent recurved tips: 
rays about 20, broad and short. 
Southern Nevada, near Candelaria, at an elevation of 
6000 ft., Shockley. 
Aster inornatus. Apparently perennial, the several 
equal stems ascending, from a central tap-root and attaining 
the height of 2 or 3 feet; herbage pale, obscurely puberulent: 
leaves few, narrowly oblanceolate, remotely and slightly 
serrate-toothed, the cauline much reduced: heads short- 
peduncled or subsessile on the upper part of the stem and 
along the few short virgate branches: involucre turbinate, 
5 lines high; bracts very numerous, not spinescent but 
abruptly squarrose at tip, and with sessile glands along the 
edges: rays none: teeth of disk-corollas pubescent: pappus 
almost barbellulate. 
