682 



PBACTICAL GUIDE TO GABDEN PLANTS cbeinthe 



yellow above, 1 j in. long, tubular inflated 

 in the middle, and drooping on one-sided 

 recurved spikes. There is a white 

 variety, alba, but it is rather difficult to 

 establish, being of a more delicate cons'ti- 

 tution. 



Culture dc. as above. This species is 

 an excellent plant for the border or rook 

 garden in deep well-drained soil. In- 

 creased by seeds or cuttings. It is the 

 only species generally met with outside 

 botanical coUeotions, but 0. echioides is 

 an excellent companion, and seems to be 

 very similar, if not identical with it. 



CERINTHE (HoNEYWOET). — A 

 small genus of smooth glaucous annual 

 or perennial herbs with alternate leaves, 

 those of the stem being heart-shaped or 

 hastate-amplexicaul. Flowers yellow, 

 often spotted with purple, in leafy 

 terminal crosier-like cymes or racemes, 

 at first clustered, afterwards distant. 

 Calyx 5-parted. CoroUa broadly tubular, 

 straight or incurved, often constricted at 

 the throat, 5-lobed. Stamens 5, some- 

 times slightly protruding. Ovary 2-lobed. 

 Fruit composed of 2 distinct 2-ceUed 

 nuts. 



Culture and Propagation. — These 

 plants grow readily in ordinary garden 

 ^oil and (with the exception of C. 

 maculata, which is a perennial) are 

 easily raised from seeds sown in April in 

 sunny spots on warm borders or in cold 

 frames from which the seedlings may be 

 transplanted in June or earlier. Those 

 described below are all annuals except 

 C. maculata. 



C. aspera. — A native of S. Europe 

 1-2 ft. high with oblong finely toothed 

 and ciliate leaves, roughish beneath. 

 Flowers in July, yellow, with a brownish- 

 purple cylindrical tube. 



Culture do. as above. 



C. glabra. — A native of the Alps 

 about 1 ft. high, with ovate lance-shaped 



entire leaves. Flowers in June, yellow 

 at the base, violet at the top. 

 Culttire Sc, as above. 



C. maculata. — A native of S. and E. 

 Europe 1-1| ft. high, with ovate heart- 

 shaped entire smooth leaves. Flowers 

 in June, yellow, inflated, with 5 dark 

 purple spots on the tube. 



Culture dc. as above. This perennial 

 has fleshy roots and should be grown in 

 dry sunny situations in welL-drairied soU, 

 so that the roots will not rot through 

 stagnant moisture. 



It may be increased by division in early 

 autumn or in spring. Seeds may also be 

 sown in cold frames when ripe, or in the 

 open border about April, afterwards trans- 

 planting the seedlings, or thinniag them 

 out if the plants are required to bloom 

 where the seeds have been sown. 



C. major. — A native of Switzerland 

 about 1 ft. high. Leaves heart-shaped 

 ovate finely toothed and ciliate, fleshy, 

 stem-clasping, smooth above, and covered 

 with white dots, rough beneath. Flowers 

 in July, inflated, yellow at the base, 

 purple on top. 



Culture dc. as above. 



C. minor. — A native of Central and 

 S. Europe, l-lj ft. high. Leaves heart- 

 shaped ovate entire, smooth, covered 

 \idth tiny white warts above. Flowers in 

 June, yellow, sometimes with 5 brownish 

 spots on the tube. 



Culture dc. as above. 



C. retorta. — A native of Greece about 

 1^ ft. high. Leaves stem-clasping, rather 

 spoon-shaped, emarginate at the apex, 

 with a short bristle in the centre, and 

 having small white warts on both 

 surfaces. Flowers in July, yellow and 

 violet, club-shaped, cylindrical, with a 

 constricted 5-toothed mouth. 



Culture dc. as above. 



LXXIX. CONVOLVULACEiE— Bindweed Order 



An extensive order of herbaceous plants or shrubs (rarely trees) with weak, 

 trailing, twining or high climbing stems. Leaves alternate, various in form, 

 often heart-shaped, entire, sinuate-toothed, palmately or rarely pinnately 

 lobed or dissected (absent in the Dodder, Cuscuta). Stipules none. Flowers 

 in axillary or terminal racemes, or solitary, regular, hermaphrodite, or very 

 rarely polygamous by abortion. Calyx inferior in 5 divisions ; sepals often 



