CONVOLVULACEH. (MORNING GLORY FAMILY.) 87 
2. C. occidentalis, Gr. Mostly smooth; stems twining several feet high; leaves 
from broadly ovate-triangular with a deep and narrow basal sinus to narrowly lanceolate- 
hastate; the posterior lobes often 1-2-toothed; peduncle elongated, not rarely 2-flowered 
within the bracts; these ovate or rarely oblong, commonly surpassing the enclosed calyx; 
corolla white or pinkish, 1 to 14 inches broad; stigmas linear. 
3. C. Californicus, Choi. Minutely and rather densely pubescent, a span or less 
high, or with trailing stems a foot long; leaves from ovate or obovate and obscurely 
hastate to triangular-hastate, the basal lobes sometimes 1-2-toothed, long-petioled; pe- 
duneles shorter than the petiole; bracts oblong or oval, about equaling the sepals, or 
shorter; corolla white, cream-color or flesh-color, 14 to 2 inches long. 
4, C. villosus, Gr. Densely silky-villous or woolly; corolla cream colored, an inch 
long. 
* * No calyz-like bracts; sometimes a pair of leaves close under the flower or a pair of 
bracts at some distance below it. 
5. C. luteolus, Gr. Stems twining several feet long; leaves triangular-hastate or 
sagittate, the basal lobes sometimes 2-lobed; peduncles bearing a pair of linear or lan- 
ceolate entire bracts, a little below the flower; a second flower occasionally from the 
axil of one of them; corolla pale yellow or purplish, an inch or more in length; stigmas 
linear. 
2, CRESSA, L. 
Corolla deeply 5-cleft; the oblong or ovate lobes more than half the length of the 
somewhat campanulate tube. Stamens and the 2 distinct styles exserted. Stigmas 
capitate. 
1. GC. Cretica, L. A span or two high, silky-villous and hoary; leaves very 
numerous, 2 to 4 lines long, almost sessile; flowers ecasile or nearly so in the upper axils; 
corolla 2 or 3 lines long, white.—On saline or alkaline soil. 
3. CUSCUTA, Tourn. DopprER, 
Calyx 5-4-cleft or parted. Corolla campanulate or short-tubular, the spreading limb 
5-4-parted. Styles in our species 2,.distinct. Seeds germinating in the soil, but the 
thread-like, branching, leafless, yellowish or reddish twining stems becoming parasitic on 
the bark of herbs or small shrubs; being attached by means of suckers. Flowers small, 
cymose or densely clustered, white or whitish. 
™ Capsule depressed-globose, 
1. ©, Californica, Choisy. Flowers pedicelled in loose few-flowered cymes; lobes of 
the calyx acute; lobes of the corolla lanceolate-subulate, delicate white; no scales below 
the stamens. 
Var. breviflora, Engel. Flowers scarcely over a line long; calyx lobes equaling the 
corolla-tube. 
