CATALOGUE. 289 
seed rather acutely margined, minutely tuberculate and not shining, ¥' in 
diameter. — From the Saskatchewan to Colorado, New Mexico, and Arizona. 
Dry hillsides and alkaline flats from the Truckee River to Ruby Valley, 
Nevada; 4-6,000 feet altitude ; May-August. (979.) 
MoNOLEPis PUSILLA, Torr. Very slender, 2-G' high, glabrous or sub- 
farinose, erect, diffusely much branched from the base, often reddish ; leaves 
remote, oblong or ovate, 1-4" long and 1" wide, obtuse and attenuate into a 
very short petiole ; clusters 1-5-flowcred, the often soHtary seeds com- 
pressed, rather obtusely margined, tuberculate and not shining, dark or 
reddish, i" in diameter ; calyx and utricle usually evanescent. — Collected 
by Anderson near Carson City, and rather frequent in the alkaline valleys 
of Western Nevada ; 4-5,000 feet altitude, May-Jidy. (980.) Munolepis 
spathulata, Gray, from Mono Pass, California, is more decunil>ent, the spahi- 
late leaves numerous along the simple elongated branches, clusters crowded, 
utricle very papulose-scabrous, seed less compressed, very smooth and 
shining. 
Obione' canescens, Moq. DC. Frodr. 13. 2. 112. Shrubby, 1-5° 
liigh, hoary-canescent and pulverulent, unarmed, branches usually erect and 
virgate ; leaves sessile, oblong or hnear-oblong, narrowed at base, obtuse or 
acutish, occasionally emarginate, entire, 1-2 i' long and 2-4" wide, (some- 
times smaller and ovate or obovate ;) flowers dioecious, the staminate in dense 
clusters at the extremities of the branchlets, the pistillate clusters less 
crowded, axillary ; fruit 2-3" long, hoary-pubescent, sessile or short-pedi- 
celled, wingless or winged by the more or less dilated margins of the vari- 
ously toothed bracts. — From Dakota to Northern Texas, and westward to 
Nevada and Southern Cahfornia. Frequent in the dry and aikahne valleys 
of Nevada and Utah; 4-6,000 feet altitude. Most of the specimens have 
nearly or quite wingless fruit. (981.) Others have the bracts considerably 
dilated, though still less than is frequently the case. (982.) 
Obione confertifolia, Torr. Frem. Rej). 318. Shrubby, 1-2° liigh, 
rigidly and diffusely branched, spinose, scurfy or mealy-pubescent ; leaves 
ovate or obovate, 3-6" long, short-petioled, obtuse or refuse or sometimes 
acutish, entire, becoming rather thick and coriaceous; flowers ditt'cious, the 
• OBIONE, G.t:t{TX. Pistillate llowcr.s all witlimit calyx niid 2-I)raft(>(l, the liracts more or less 
comiiletcly niiitt'il iiinl heron lii,;^. lianleiicd or coil-.y : rii.lirle su]i( rior; otli.M wisc as in .l/nj>?ex.— Mothu- 
cioiis or dia.fiou.s liorhs or under .-ilirubs, Avitli inostl v all .mat.' mtirc or Niiinatr-,1,.i,tate leaves. MoQUiN, 
in DC. Frodr. 
37 
