CONVOLVULACE.E. (CONVOLVULUS FAMILY.) 329 



upward, nodding ; sepals ovate-lanceolate, acutish, smooth, half as long as the 

 corolla, widely spreading in fruit ; corolla white, purple hi the throat ; cap- 

 sule globose ; seeds smooth. South Florida. July -Oct. 2/ Leaves 4'- 

 6' wide. Corolla 1^' long. 



2. JACQUEMONTIA, Chois. 



Sepals 5, unequal. Corolla bell-shaped, 5-plated. Style single : stigmas 2, 

 ovate or oblong, flattened. Ovary 2-celled, 4-ovuled. Capsule 2-celled, 2-4- 

 valved, 4 seeded. Habit of Ipomcea. 



1. J. violacea, Chois. Stem smoothish, twining; leaves petioled, ob- 

 long-ovate or ovate-lanceolate, acuminate, pubescent, the lower ones slightly 

 cordate ; peduncles longer than the leaves, cymosely many-flowered ; sepals 

 ovate, acuminate, the 2 outer ones larger ; corolla small, purple ; stigmas ob- 

 lung, diverging ; capsule smooth, 4-valved, shorter than the calyx. South 

 Florida. Stem l-3 long. Leaves 1'- 2' long. Corolla %' long. Seeds 

 roughish. 



2. J. tamnif olia, Griseb. Hairy ; stem erect or twining ; leaves cordate- 

 ovate, acuminate ; peduncles longer than the petioles ; flowers in a leafy- 

 bracted head ; sepals subulate, bristly, nearly as long as the blue corolla ; 

 stigmas distinct ; capsule depressed. Cultivated ground. July -Oct. (T) 

 Stem l-4 long. Corolla y long. 



3. CONVOLVULUS, L. 



Sepals, corolla, ovary, etc. of Ipomcea. Style single ; stigmas 2, filiform 

 or subulate, or broader and flat. Capsule 2 - 9-valved. 



* Calyx bractless : stigmas oblong or Jiliform. 



1 . C. Havanensis, Jacq. Stems very long, woody, prostrate, canescent- 

 tomentose ; leaves small, oblong, obtuse, short-petioled ; peduncles stout, 

 single or by pairs, 1 -3-flowered ; outer sepals obovate, twice as long as the 

 roundish inner ones; corolla white, sharply 5-lobed ; valves of the capsule 

 6-9. Sandy coast of South Florida ( Garber). Stem 1 5 - 20 or more long. 

 Leaves 6"- 10" long. Corolla 9" long. 



2. C. nodiflorus, Desr. Stem twining, woody, pubescent ; leaves cor- 

 date-ovate, tomentose, short-petioled ; peduncles as long as the petioles, mostly 

 many-flowered ; sepals ovate, obtuse, equal ; corolla small ; capsule 8-valved. 



-Bahia Honda Key, South Florida (Curtiss). Stems climbing over low 

 bushes. Leaves 1' long. Corolla 5" long. 



3. C arvensis, L. Stems prostrate or climbing, pubescent ; leaves ob- 

 long-ovate, broadly sagittate ; peduncles 1-flowered ; corolla white ; stigmas 

 filiform. Waste ground. Introduced. 



* * Calyx included in a pair of large bracts. 



4. C. sepium, L. Smooth ; stem twining ; leaves broadly sagittate, 

 a-ute, the wide lateral lobes obliquely truncated and often toothed ; peduncles 

 as long as the petioles ; bracts cordate-ovate or oblong ; sepals acute ; corolla 

 white or rose-color. Varies with the stem and shorter peduncles pubescent ; 

 leaves smaller and narrower. Rich soil, Florida (the var.), and northward. 



