CATALOGUE. 
291 
base, dilated and herbaceous above in fruit, becoming often 2-3" in diameter, 
the margin deeply and acutely toothed and undulate, the sides strougly retic- 
ulated and frequently more or less crested. — From Dakota to New Mexico 
and westward to California. Found in dry alkaline valleys or on foot-hills 
from the Truckee Desert to Northeastern Nevada; 4-G,000 feet altitude ; 
May-September ; but only in flower. (985.) 
Obione phyllostegia, Torr. Annual and herbaceous, about 1° high, 
erect, the branches ascending; stem and leaves nearly glabrous or somewhat 
scurfy ; leaves about V long, deltoid-hastate or ovate-rhomboid, acute or 
acuminate, abruptly attenuate into a slender petiole equaling the blade ; 
flowers monoecious or wholly pistillate, the staminate in large and conspic- 
uous axillary clusters ; bracts of the young fruit united into a somewhat 
tubular base, hairy below, the limb above lanceolate, acuminate, entire or 
gash-toothed ; style elongated, nearly equaling the bracts. — Near to O, 
argentea, but a well-marked species, though the mature fruit is still ^\ anting. 
As a slight doubt remains respecting the position of the radicle, it may yet 
prove to be an Atriplez. First found by H. Engelmann at " Gate of Gib- 
raltar," Utah ; not rare on dry foot-hills and near hot springs, between the 
Truckee and Humboldt Rivers, Western Nevada, growing with the last ; 
4,000 feet altitude ; May. (986.) 
Obione teuncata, Torr. Annual and herbaceous, erect, branched, 
2-3° high, slightly pulverulent and glaucous, furfuraceous above ; lower 
leaves on short petioles, broadly ovate, truncate or cordate at base, obtuse 
or acutish, 1-2'' long, the upper ones sessile and cordate, acute, gradually 
diminishing to the ends of the branchlets ; staminate clusters small and 
inconspicuous ; fruit 1" in diameter, the bracts broadly obovate, united to 
near the summit, which is truncate and denticulate, but slightly extended 
beyond the naked disk. — Collected by Dr. Anderson (40) near Carson City, 
and common on the Truckee River; 4-4,500 feet altitude ; July. (987.) 
Obione pusilla, Torr. Annual, herbaceous, 2-4' high, diffusely 
branched from the base, white-scurfy throughout ; leaves small, 1-2" in 
diameter, sessile and subamplexicaul, ovate, acute, crowded above ; flowers 
monoecious, minute ; fruiting bracts h" long, ovate, acutish, entire, united 
half their length. — Near O. microcarpa^ Benth. First collected by Ander- 
son (65) near Carson City. Found on the edge of a dried alkali flat near 
the head of Humboldt Valley ; 5,500 feet altitude ; September. (988.) 
