CONVOLVULUS FAMILY. 263 



§ 2i Style 2-clefi or 2 separate styles, rarely 3. Spreading or trailing, not tieinipg. 



5. BONAMIA. Like .Convolvulus, but the styles 2 or sometimes 3, or in one 



species 2-cleft, and stigmas capitate-. Peduncles 1 - 7-flowered. 



6. EVOLVJJLUS. Corolla short and open funnel-form, or almost wheel-shaped. 



Styles 2, each 2-cleft: Uie 4 stigmas obtuse. Pod 2-celled: cells 2-seeded. 



II. DODDER FAMILY ; slender parasitic twiners, without 

 green herbage and with only some minute scales in place of leaves ; 

 embryo slender and spirally coiled in the seed, destitute of coty- 

 ledons. 



7. CUSCUTA. Calyx 4 -B-cleft, or of B separate sepals. Corolla short, 4 - 5-cleft. 



Stamens with a scale-like mostly fringed appendage at their base. Styles 2 

 in our species. Ovary 2-ceUed: cells 2-oviiled. rod commonly 4-seeded. 



1. QUAMOCIiIT. (Aboriginal Mexican name.) Twiners, with small 

 flowers red or crimson, and with pale or white cultivated varieties, in summer, 

 open through the day. @ 



Q. Tulg&ris, Ctpkess-Vine. Cult, from Mexico : leaves pinnately parted 

 into slender almost thread-shaped divisions ; peduncles 1 -flowered ; border of 

 the narrow corolla 5-lobed. 



Q. coccinea. Run wild S. & W. : leaves heart-shaped, pointed ; sepals 

 awn-pointed ; peduncles several-flowered ; border of (1' long) corolla merely 

 5-angled. 



2. IPOMCEA, MORNING GLORY. (Greek-made name.) I"L summer. 



§ 1. Ovari/ and pod 3-celled (Or accidentally 4-celled), with 2 seeds in each cell: 

 stigma more or less 3-hbed : corolla fwnnel-form, opening in early morning 

 for a few hours: stems tunning freely, hairy, the hairs more or less retrorse. 



I. purptirea, Common M. Cult, from Trop. Amer. and wild around 

 dwellings ; with heart-shaped pointed entire leaves, 3-4-flowered peduncles, and 

 purple sometimes variegated or nearly white corolla, 2' long. ® 



■ iT ITU. Cult, or run wild S. : with heart-shaped 3-lobed leaves, 1 -3-flow- 

 ered peduncles, slender-pointed sepals, and blue-purple or sometimes white 

 corolla 1'- 2' long. ® 



I. limb&ta or albO-margin&ta, perhaps a var. of the preceding: a 

 tender species, with leaves little lobed, angled or entire, and larger corolla with 

 deep violet border, edged with white 2^ broad. ® 



X. Iie^ii, cult, from S. Amer. : tender, loss Jiairjc, with heart-shaped and 

 some deeply 3-lobed leaves, many flowers crowded on the summit of the 

 peduncle, and deep violet-blue corolla, 3' long and border 3' wide. 21 



§ 2. Ovary and pod 2-celled, the cells 2-seeded, or sometimes each cdl divided by a 

 partition making i one-seeded cells: lobes of the stigma if any only 2. 



I. Bona-N6x, or Calont'otion spECi6snM. Cult., also wild far S. ; 

 tall-twining, very smooth, but stems often beset with soft almost prickly 

 projections; leaves heart-shaped, halberd-shaped, or angled; peduncles long, 

 1 _ few-flowered ; corolla salver-form with a slender tube 3' - 4' long and the 

 border still broader, white, opening at evening. 



I. Batatas, Sweet Potato. Cult, from East Indies : creeping, seldom 

 twining, smooth, producing the large fleshy edible roots for which the plant is 

 cultivated ; leaves variously heart-shaped, halberd-shaped, or triangular, some- 

 times cut-Iohed ; peduncles bearing 3 or 4 flowers ; corolla funnel-form, purple, 

 1 J' long ; pod with 4 one-seeded cells. ^ 



I. MicnaT^LXii. Light soil along the coast S. : creeping or twining, with 

 heart-shaped or triangular sometimes lobed leaves downy beneath ; flowers 

 downy ; corolla pui-plish-white with purple eye, 3' - 4' long, opening at night ; 

 pod partly 4-celled, with silky seeds ; root extremely large and fleshy, y. 



