PLANTS COLLECTED BY DR. GAMBEL. 179 
BULBOSTYLIS. 
§. *Psatuyrotus.t Annual, and dichotomously branched; involucrum of a 
nearly single series of loosely imbricated, slightly striated scales; pappus short and 
scabrous, shorter than the florets: style not bulbous; achenia turbinate, densely 
villous. 
B. *ANNUA. Very dwarf and dichotomously branched, clothed everywhere with greenish furfuraceous 
scales, and somewhat viscid; leaves cuneate-obovate, toothed at the apex; flowers nearly sessile, 
crowded into an irregular corymb. 
Flowers ochroleucous, twenty or more florets in the oblong involucrum, scales few, 
linear-lanceolate, the innermost chaffy. Receptacle small, naked, branches of the 
style filiform, obtuse, included. Pappus brownish, not very copious, and short. 
Plant about four or five inches high. 
Has. Rocky Mountains, near Santa Fé. 
QUERCUS. 
Q. *“GAMBELII. Leaves obovate, shortly petiolate, narrowed below, sinuately lobed, dilated and somewhat 
three-lobed at the summit, beneath pubescent, the lobes rather obtuse, the upper ones subdentate ; 
fruit sessile, small, the cup hemispherical, scales ovate-acute ; the glande ovate and acute, about half 
immersed in the cup; the conic summit. short. 
With the aspect of our northern oaks, but very distinct ; in the leaf approaching a 
little to L. obtusiloba, but without any near affinity. 
Has. On the banks of the Rio del Norte, but not abundant. 
OROBANCHE. 
QO. *MULTIFLORA. Pubescent; branching from the base; flowers subimbricated, scales lanceolate-acute ; 
peduncles very short; flowers purplish, recurved; calyx deeply five-cleft, bibracteate at base ; 
segments long and linear ; anthers tufted with hairs. 
Eight or nine inches high, and very robust, branching from the base. The whole 
plant clothed with short soft hairs. Scales lanceolate and acuminate. Calyx deeply 
five-cleft, the segments long and linear; two long bractes immediately beneath the 
calyx. Corolla pubescent, pale below, the border purplish blue, upper lip bifid, the 
lower trifid, segments short and oblong. Anthers whitish, with tufts of white hairs 
above, shortly awned at the base. Seeds minute and numerous, light brown, covered 
with impressed punctures. 
Has. Sandy ground along the borders of the Rio del Norte. Flowering in 
September. 
t In reference to the extreme fragility of the branches, 
46 
