342 CONVOLVULACE.fi. (CONVOLVULUS FAMILY.) 



3. PHARBITIS, Chois. Morning-Glory. 



Sepals 5. Corolla bell-shaped or funnel-shaped, 5-plaited. Stamens dilated 

 at the base, ineluded. Style simple : stigma globose. Capsule 3 - 4-eelled, 3 - 

 4-valved, 6-8-seeded. — Twining herbs, with petioled cordate entire or lobed 

 leaves, and single or cymose blue or purple flowers, on axillary braeted pe- 

 duncles. 



1. P. hispida, Chois. Annual; stem glandular-roughened and hairy; 

 leaves entire, round-cordate, acuminate ; peduncles mostly longer than the haves, 

 3-5-flowered ; sepals ovate-lanceolate, acute, mostly hairy; corolla showy, blue, 

 purple, or variegated. (Convolvulus purpureas, L.) — Around dwellings. In- 

 troduced. June - Sept. 



2. P. Nil, Chois. Annual, hairy ; leaves membranaceous, broadly cordate, 

 3-lobed, the lobes acuminate; peduncles shorter than the leaves, 2 — 3-rlowercd; 

 sepals densely hispid, ending in a long subulate point ; bracts linear; corolla 

 purple. (Convolvulus Nil, L.) — Cultivated ground, Florida, and northward. 

 July - Sept. — Corolla l£' long, 



4. IPOMCEA, L. Morning-Glory. 



Sepals 5. Corolla bell-shaped or funnel-shaped, 5-plaitcd. Stamens dilated 

 at the base, included (except No. 8). Ovary 2-celled, rarely imperfectly 4-celled. 

 Style simple : stigma capitate, 2-lobed. Capsule 2-celled, 2-4-valvcd, 4-seedcd, 

 or, by abortion, 1-3-scedcd. Seeds smooth or hairy. — Twining or trailing 

 ranly erect herbs, with cordate or sagittate entire or variously lobed leaves, and 

 showy white or purple flowers on axillary peduncles. 



* Flowers crowded in a leafy-bracted capitate cyme: corolla small, bell-shaped. 



1. I. tamnifolia, L. Hairy ; stem erect or twining; leaves cordate-ovate, 

 acuminate, somewhat plicate with impressed parallel veins ; peduncles longer than 

 the petioles ; lower bracts longer than the many-flowered heads ; sepals subulate, 

 bristly, nearly as long as the blue corolla; Stigmas distinct; capsule depressed, 

 somewhat 4-sided. — Cultivated ground, Florida to South Carolina, and west- 

 ward. July -Oct. tii — Stem l°-4° long. Corolla £' long. 



* * Flowers solitary, or few in an open cyme. 



-t- Corolla bell-shaped : leaves orbicular : stems prostrate. 



2. I. PeS-Capraj, Sweet. Smooth and fleshy ; stem prostrate ; leaves 

 petioled, orbicular, or Blightly notched at the apex, parallel-veined ; peduncles 

 1 -3-flowered, the ovate bracts minute; sepals oval or oblong, obtuse, mucro- 

 N.it'-: till**- of the corolla very short. (I. orbicularis, /•.'//.) — Drifting Bands 

 along the coast, Florida and Georgia. Aug. -Oct. y. — Leaves 2' long. Co- 

 rolla 2' loll-, purple. 



-»- -i- Corolla [mostly small) bell-shaped ': capsule hairy i seeds suuhiiIi or nearly so: 



si' ins slriiib r, hriniiif/ : I, arts jietiolttl, cordate, entire, or 3-lobed: stanttiis 

 i ne) 'ut ft if. 



•'i. I. commutata, R. & 8. Stem pubescent or hairy ; leaves thin, cor- 

 date, acuminate, entire, angled Or 3-lobed, the lateral lobes acute or sometimes 



