PLANTS COLLECTED BY DR. GAMBEL. 151 
From any affinity yet discoverable, this curious plant may well form a sub order 
CrossosomE®, with the estivation of the coralline calyx imbricate, its base 
occupied by a fleshy disk. Stamina indefinite. Ovaries three to five, verticillate, 
cohering at the base into a common stipe; ovules very numerous, pendulous. 
Capsular follicles tardily dehiscent, many-seeded : the hylum surrounded by a large 
fringed arillus. 2 
Has. Abundant on the borders of streams in the island of Catalina, off the coast 
of Upper California. Flowering in February. 
TRIFOLIUM. 
T. §. *PuysantHa. (Jnvolucrarium.) With the calyx 5-cleft, one or two of the 
divisions smaller. Corolla marcescent. The vexillum transformed into a physiform 
sac, which at length envelopes the very small wings and monopetalous carina. 
Stigma capitate. Legume stipitate, two to five-seeded, included in the calyx. 
T. *sTENOPHYLLUM. Annual, branching from the base ; leaves ternate, smooth and linear, distantly serrulate ; 
stipules subulate, sparingly denticulate ; peduncles elongated, filiform. Heads small and nearly round, 
the vexillum, at length, forming a membranous inflated sac of equal breadth throughout, embracing the 
small wings and small carina, which is monopetalous, with but one broad claw attached to the 
vexillum. 
With all the aspect of the involucrate clovers. Flowers brownish, the keel deeper 
coloured. Stamens diadelphous. Pod stipitate, flat, two-seeded, seeds obcordate. 
Stigma small, capitate. About four to six inches high : leaves about one or two lines 
wide. 
Has. The island of Santa Catalina, and San Pedro, Upper California. Flowering 
in February. 
T. *aaAmMBeL. Perennial and decumbent, smooth, branching from the base; leaflets roundish-oval or 
cuncate-oval, obtuse, very minutely and sharply serrulate; stipules membranaceous, dilated, entire, 
with subulate, slender points; peduncles about the length of the leaves ; involucrum about 8-cleft, the 
segments lanceolate, acuminate ; teeth of the calyx trifid, or simple, with setaceous points; legume 
stipitate, three to five-seeded ; wings longer than the vexillum. 
A large, robust species, with shortish branches, very large stipules, and heads of 
large flowers, which appear to have been whitish, with purple tips to the carina; 
heads of flowers one to one and a half inches across; the vexillum very wide below ; 
§0 as to conceal the other petals ; the wings and carina are also united : leaflets three 
quarters of an inch long, and about the same breadth, 
Has. Island of Catalina, St. Simeon, and Pueblo de los Angeles. 
39 
