386 convolvulacejE. 



Stamens attached near the base of the corolla. Ovary superior, 

 commonly 2-celled, with 2 ovules in each cell. Styles 1 or 2. 

 Fruit most frequently a capsule. Embryo with folded cotyledons. 

 Ovary 2-parted : styles 2, distinct or united at base only; creeping herbs . . 



1. DiCHONDRA. 



Ovary entire. 

 Style 1, entire or cleft at the apex only; prostrate or twining herbs, one 



species woody at base .2. Convolvultis. 



Styles 2, distinct. 

 Erect non-twining leafy herb . . . .3. Cressa. 



Parasitic leafless twining herbs . . . . . . 4. Cusccta. 



1. DICHONDRA Forst. 



Creeping perennial herbs with filiform stems. Leaves reniform or 

 round-cordate, entire. Peduncles short, naked, 1-flowered. Corolla 

 deeply 5-cleft or -parted, the lobes imbricated in the bud. Stamens 

 short.' Ovary 2-parted, forming 2 indehiscent or irregularly burst- 

 ing utricles in fruit. Styles 2, distinct or united at base. Seed 

 solitary. Cotyledons linear, entire. (G-reek di, double, and chondra, 

 grain, on account of the deeply parted or twin fruit.) 



1. D. repens Forst. Stems slender, partly subterranean, rooting 

 freely; leaves glabrous or soft-pubescent, J to 1 in. wide, on long 

 petioles; corolla j'ellow, 1 to,l| lines long, rather shorter than the 

 obovate to spatulate sepals. 



Introduced: Mt. Tamalpais; Mountain Lake, San Francisco; near 

 Ocean View; Monterey. 



2. CONVOLVULUS L. Bindweed. Mokning-glokt. 

 Twining or prostrate herbs. Sepals 5. Corolla funnelform to 

 oampanulate. Style entire, or cleft at the apex only. Stigmas 2, 

 ovate to linear. Stamens included. Capsule globose with 4 seeds 

 in 2 cells (or bj^ abortion 1-celled), mostly 2 to 4-valved. (Latin 

 convolvo, to entwine.) 



Flowers showy, 1 to 2 in. long; perennials. 

 Calyx enclosed by a pair of broad bracts; peduncles 1-flowered ; perennial 

 herbs. 

 Corolla pink, purple, or lavender. 

 Leaves reniform, glabrous; slightly succulent seaside herb . . . 



1. C. Soldanella. 

 Leaves ovate-lanceolate, sagittate at base, acuminate at apex, 2 in. 

 long, sparsely hirsute ; bracts cordate at base.2. C. sepium. 

 Corolla white or creamish; leaves ovoid or deltoid, sagittate, mostly 1 

 in. long; trailing or often nearly acaulescent. 

 Herbage white with a velvety tomentum . . .3. C. villosus. 



Herbage green 4. C. subacaiUis. 



Calyx not enclosed by bracts; peduncles often more than 1-flowered; 

 .leaves sagittate. 

 Stems climbing over shrubs and trees, woody below; bracts subulate- 

 lanceolate, situated about their own length from the calyx . 



5. C. lutcolus. 

 Stems herbaceous, prostrate; peduncles with a pair of bracts near the 



middle 6. C. arvensi-s. 



Flowerssmall, 3 lines long; leaves not sagittate; annual.7. C. pentapetaloides. 



1. C. Soldanella L. Shore Morning-gloky, Stems prostrate. 



