342 CONVOLVULACE^. (CONVOLVULUS FAMILY.) 



3. PHARBITIS, Chois. Morning-Glory. 



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

 at the base, iiii'iudcil. Style simple : stigma globose. Ciipsulc 3 - 4-eelled, 3 - 

 4-valvcd, 6 - 8-sccdod. — Twining herbs, with petioled cordate entire or lobcd 

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

 duncles. 



1. P. hisr)ida, Chois. Annual; stem glandular-roughened and hairy; 

 leaves entile, rouiitl-iordate, acuminate; peduncles mostly longer than the leaves, 

 3-5-flowcred ; .scj)als ovatc-lanecolatc, acute, mostly hairy ; corolla showy, blue, 

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

 troduced. June - Sei)t. 



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

 3-lobcd, the lobes acuminate; peduncles shorter than the leaves, 2 -3-Howercd; 

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

 purple. (Convolvulus Kil, Z.) — Cultivated ground, Florida, and northward. 

 July- Sept. — Corolla 1^' long, 



4. IPOMCEA, L. Morning-Glory, 



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

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

 Style simple : stigma capitate, 2-lobcd. Capsule 2-celled, 2 -4-valvcd, 4-sccdcd, 

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

 rarely erect licri)s, witli cordate or sagittate entire or variously lobed leaves, and 

 showy white or i)ur|ilc (lowers on axillary peduncles. 



* Flowers crowdnl in a leafy -br acted capitate cyme : corolla smalt, hell-shaped. 



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

 acuminate, somewhat i)licate with impressed parallel veins ; peduncles longer than 

 the petioles ; lower biacts 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. C2) — Stem 10-4° long. Corolla ^' long. 



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

 ■*- Corolla hell-shaped : leaves orbicular : steins prostrate. 



2. I. Pes-Caprae, Sweet. Smooth and fleshy ; stem i)rostrate ; leaves 

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

 I -3-flowcred, tlie ovate bracts minute; sepals oval or oblong, obtuse, mucro- 

 nate; tube of the corolla very short. (1. orbicularis, Fil.) — Drifiini,' sands 

 along the coast. Florida^and Georgia. Aug. -Oct. 1| — Leaves 2' long. Co- 

 rolla 2' long, purple. 



♦- H- Corolla {mostly small) bell-shaped: capsule hairy: seeds smooth or nearly so: 

 stnns sli-nilr, liririim; : leaves petioled, cordate, entire or S-lvlnd : stamen.^ 

 incliuhd. 



3. I. commutata, Ti. & S. Stem pubescent or hairy ; leaves thin, cor- 

 date, acuminate, entire, angled or 3-lobed, the lateral lobe.-* acute or fionictimcs 



