PLANTS COLLECTED BY DR. GAMBEL. 167 
An annual, about ten to twelve or fourteen inches high, with a few narrow 
spathulate leaves, greenish, but pubescent above, whitish and tomentose beneath, 
Clusters of flowers crowded; the perianth apparently rose colour, much exserted, 
with the segments oblong. 
Has. Santa Barbara, Upper California. Flowering in April. 
C. *ancustirorra. Annual and small; leaves all linear-spathulate, softly lanuginous, as well as the 
branches; stem trichotomous, the heads of flowers somewhat racemose; involucrum pilose, with very 
unequal, uncinate spreading teeth, subulate to their base; perianth minute, the segments obtuse and 
without points. 
A small, slender annual, three to five inches high, covered with whitish, long, 
woolly hairs. Leaves not more than a line broad, radical, one to two inches long, 
with very slender petioles. Stem leafy to the summit, bi- or trichotomous, the heads 
of flowers disposed in a sort of cymose raceme. Teeth of the involucrum brownish 
yellow, very unequal and strongly hooked, wholly subulate, without any membranous 
expansion, the teeth twice the length of the cup of the involucrum. Perianth sessile, 
with oblong, obtuse segments, which are not mucronulate. 
Has. Pueblo los Angeles, Upper California. Flowering in April. 
. *DISCOLOR. 
a 
Annual or biennial, and rather dwarf ; leaves all radical in a rosulate cluster, the primary 
nearly smooth, rather large, spathulate-oblong, obtuse or emarginate, rather smooth above, whitely « 
tomentose beneath; the petioles, stem and involucrum very hairy; the involucrum with spreading, 
very unequal teeth subulate to their base; scape low, doubly trichotomous, tbe flowers in cymose 
clusters. 
A smallish species, three to five inches high. Leaves with their longish petioles 
two to two and a half inches long, about half an inch wide. 
the teeth slightly uncinate, two of them very small. 
Has. St. Diego, Upper California. 
The involucrum with 
C. *procumBens. Annual or biennial, softly pilose; leaves spathulate, rather small; stem nearly naked 
procumbent, the branches extremely divaricate and fragile, eymose; flowers in small clusters; 
involucrum with the teeth subulate to the base, slightly uncinate, unequal ; 
entire, (yellow,) pubescent. 
A very remarkable species by its procumbent habit and extreme fragility; the 
branchlets and clusters of flowers disjointing into numerous. fragments on the 
slightest touch, like a Loranthus. 
Has. With the above.” Flowering in April and May. (Nuttall.) 
perianth segments oblong, 
C. *uncinata. Like the preceding, but with the teeth of the involucrum strongly and remarkably ~ 
uncinate and nearly equal; the tube is almost smooth and strongly ribbed; it is likewise yellowish, as 
well as the pubescent perianth. 
Has. With the above. (Nuttall.) 
