4o6 FLOWERS OF GARDEN AND GREENHOUSE 



downy beneath. Flowers large white, with purple throat ; June. Hardy 

 perennial, from North America. 



I. PURGA (purge). True Jalap. Leaves heart-shaped, somewhat 

 arrowhead-shaped, glossy. Flowers broad, purple - rose ; August and 

 September. Hardy in a sheltered situation. 



I PURPUREA (purple). Morning Glory ; Major Convolvulus. Stem 

 10 ieet high. Leaves heart-shaped. Flowers deep violet-purple but in 

 cultivation producing many shades of blue, carmine, rose, white with 

 rays of another tint ; June to September. Hardy annual. ' Plate 195 



L QuAMOCLiT (Quamoclit, the native name). Stem 6 feet high 

 Leaves pinnate, with very slender leaflets. Flowers 1 inch lono- dark 

 red, with long tubes; July to September. Greenhouse annual. Plate 196b 



L RUBRO-c^RULEA (reddish blue). Leaves heart-shaped on long 

 stalks. Flowers at first rich lake, becoming purplish blue; November 

 and December. Stove annual. 



Cultivation. . ^^^ ^^^^^ Species of Ipomcea will grow in almost any 

 soil, but that most suitable for the genus generally is a 

 compost of fibrous loam and leaf-mould, to which some thoroughly rotted 

 manure has been added. The seeds should be sown in pots in March 

 and started in a warm house or frame, but when the stems show a 

 disposition to twine they should be planted out in sheltered places where 

 they will find some support to climb up. This may be an arbour, a 

 ti^lhs, tree-branches specially inserted, or wire arches over the paths, 

 llie halt-hardy and tender annuals may be raised in the same manner 

 but their after-treatment must be of a different character. Half-hardy 

 Kinds like /. hederacea, may be grown outside in summer, but the others 

 should be trained up pillars or wires in the stove or gi-eenhouse as the 

 case may be. If these can be planted in a border in the house, so much 

 the better, as they require plenty of root-space. The evergreens are 

 propagated by cuttings and layers. The material for these will be 

 found in the side growths, which in the one case are cut off and struck 

 m bottom heat, in the other are pegged down into pots. Layering will 

 be found to answer better than cuttings in some species, as /. Horsmia^ 

 or instance. The seeds of /. ridyro-ccerulea should be sown in June and 

 the plants pwn under glass in a warm sumiy position. /. digUata is a 

 most useful plant for clothing pillars, etc., in large stoves 



PUtl^S^drnTT ^^'^' ^^^- ^^''^''''' Vmn..rea, the Morning Glory. 

 Piatesi95andi96.upper portion of plant, and flowers of several tints Fi^ 



secti'ntf\l?flotr^'^^^^^^^^^^^^^ B, /^... Q^.,,,,, ,,/, , 



