Order 93.— OONVOLTULACB^. 673 



8 I. pandnr^tna Moyer. Wild Potato. (Fig. 321.) Man-op-the-eahth. St 

 — twining ; Its. broad-oordato or panduriform ; ped. 1 to 5-Qowered, longer than the 

 petioles ; cal. smooth, ovate, 3 to 4 times shorter than the ample corolla. — '^. In 

 sandy fields, N. T. to BL and Ga. Sts. several from the same root, 4 to 8f long, 

 slender, smooth. Lvs. 2 to 3' long, and about the same width, acute or obtnse, 

 with rounded lobes at the base, sometimes lobed and hollowed on the sides and 

 becoming fiddle-shaped. Ped. bearing several large flowers. Cor. near 3' long, 

 white, with a purple center. Jl., Aug. 



5. CONVOL'VULUS, L. Bind-weed. (Lat. convolvere, to entwine ; 

 from the habit of most of the species.) Sepals 5, corolla campanulate; 

 style 1 ; stigmas 2, linear-cylindrical, often revolute ; ovary 2-celled, 4- 

 ovuled ; cppsule 2-celled, 4-seeded, or by abortion fewer. — Herbs or 

 shrubby plants, twining or erect. None native. 



X C. arv^nsis L. Striate, angular, generally prostrate ; lvs. sagittate, somewhat 

 auriculate ; pod. mostly 1-flowered, bibracteate near the apex ; sep. roundish- 

 ovate ; capa smooth. — 2f Fields and pastures, Maine to Car., not common. Stems 

 several feet long, climbing or prostrate, a little hairy. Leaves 1 — 2' long, the 

 lower ones obtuse. Flowers small, white, often with a tinge of red. The small, 

 acute bracts are near the middle of the peduncle. Jn. 



2 C. tricolor L. St. ascending, villose ; lvs. lance-obovate, sulspatvlate, sessile, 

 ciliate at base ; ped. 1-flowered, braoteate, longer than the leaves; sep. ovata- 

 lanceolato, acute; cor. tricolored; caps, villous.-—® St. weak, ^ to 3f long. Cor. 

 yellowish in the center, white in the middle zone, and of a fine sky blue on the 

 outer part of the border. Jl. f Eur. 



6. CALYNYC'TION speoiosa, native of W. Ind., rarely seen in cul- 

 tivation, may possibly be found wild in Fla. 



7. CALYSTE^GIA, Br. (Gr. kuXv^, calyx, oreyT], a covering ; allud- 

 ing to the conspicuous calycine bracts.) Calyx 5-parted, included in 

 2 large, foliaceous bracts ; cor. campanulate, 6-plicate ; sta. subequal, 

 shorter than the limb ; ova. half bilocular, 4-ovuled ; sty. simple ; stig. 

 2, obtuse ; caps. 1-celled, 4-8eeded. — Herbs twining or prostrate. ' Ped. 

 1-flowered, solitary. 



1 C spithamaeus Br. St. erect or assurgeni ; lvs. oblong-Iauceolate, subcordate, 

 hoary-pubosoent ; ped. 1-flowered, about as long as the haves. — 2f An erect, downy 

 species, 8 — 10' (a span) high, found in fields and hilly pastures, Can. to Penn. W. 

 to 111. Stem branching, leafy, bearing one, often two or more large, white 

 flowers, on peduncles 2—4' long, issuing from near the root. Leaves 2 — 3' long, J 

 as wide, oval, with an abrupt, cordate base, and on petioles \ as long. Bracts 

 concealing the calyx. June. 



2 C. Sfepium Br. Kutland Beauty. Glabrous; stem twining; lvs. cordate- 

 sagittate, the lobes truncate and apex generally acute ; ped. quadrangular, 1- 

 flowered; bracts cordate, much longer tlian the calyx. — U A vigorous clunber, 

 in hedges and low grounds. Can. to Car. W. to Iowa. Sts. 5 to 8f in length. 

 Lvs. 2 to 4' long, hajf as wide. Fls. numerous, large, white with a reddish tinge. 

 Bracts close to the corolla, concealing the calyx. Jn., Jl. f (Convolvulus L.) — 

 The wild plant (Convolvulus repens L.) is often more .or less pubescent. 



3 C. Catesbei^nus Ph. Tomentous ; st. twining ; lvs. oblong-ovate, cordate or 

 sagittate, acute or rather obtuse, petiolate, auricles obtuse ; ped. 1-flowered longer 

 than the petiole but shorter than the leaves ; bracts lance-oblong, acute I (obtuse, 

 Pursh, subacuminate, Ghoisy), cordate, tvrice longer than the calyx, half as long 

 as the purple corolla. — Sandy soils. Car. and Ga. Sts. a few feet long. Lvs. sraall, 

 1 to 2' long. Cor. showy, 18'' long. Apr., May. 



4 C. paraddxuB Ph. Differs from the foregoing in its bracts, which are " Jrasaw 

 and remote from the flower. — ^Va. to Car." (Pursh). Probably a mere variety ; we 

 venture to suggest that both may be only states 6f C. Sepium. 



