96 PRESENT-DAY GARDENING 



stems ; the petals are narrow and reflexed, and coloured 

 red and golden yellow. The leaves have tendril-like 

 apices. G. superba, G. Rothschildiana (see Plate XX), and 

 G. virescens (Plantii) are the species usually cultivated. 

 G. Carsonii is equally desirable. Propagation by seeds or 

 division of the tubers. They thrive in equal parts of peat 

 and loam. Liberal heat and moisture are essential in the 

 season of growth, and complete rest in winter. 



HARDENBERGIA 



A small Australian genus with papilionaceous flowers, 

 well adapted for training up the rafters of a greenhouse. 

 H. comptoniana produces numerous racemes of purple 

 flowers in spring. H. monophylla has smaller leaves and 

 flowers, and there are red and white flowered varieties of 

 it. Propagated by seeds, or cuttings of the firm young 

 side shoots in spring, and cultivated in a compost of peat, 

 loam, and sand. 



HEDERA 

 Chapter X (Ivy), p. 56, is devoted to this genus. 



HIBBERTIA 



Showy climbing or bushy greenhouse shrubs, easy of 

 cultivation, with yellow or white flowers, nearly all of them 

 natives of Australia. The climbing species chiefly culti- 

 vated is H. dentata, which has thin twining stems, copper- 

 coloured leaves, and bright yellow flowers ij inch across. 

 It is a constant bloomer. H. volubilis has twining stems, 

 green leaves, and large yellow flowers. A compost of peat 



