HOYA 97 



and loam should be used, with plenty of sand to keep it 

 porous. Propagation by cuttings, inserted in sandy peat 

 under a hand-glass. 



HIDALGOA 



A Central American genus allied to Dahlia and Core- 

 opsis. H. Wercklei, the climbing Dahlia, is the only intro- 

 duced species, and is a quick-growing greenhouse herba- 

 ceous climber, attaining 20 feet or more. Its flowers are 

 bright scarlet above and yellow underneath, resembling a 

 single Dahlia ; it has elegant, much-divided leaves, and 

 climbs by means of long, twining petioles. Propagated 

 by cuttings. 



HOLBCELLIA 



A monotypic Himalayan genus. H. latifolia (also known 

 as Stauntonia latifolia), which may attain to 20 feet in 

 length, and is of easy cultivation, is a good climber for a 

 cool greenhouse. The purplish, fragrant flowers, borne in 

 axillary racemes, appear in spring, and the foliage is thick 

 and shining. It may be planted against a building or high 

 wall in a warm district, but will not flower so freely as 

 under glass. Propagation by cuttings of the half-ripened 

 shoots in spring. 



HOYA 



Wax Flower. A genus comprising about fifty species, 

 several of which are favourite stove twiners. The stems of 

 some (notably H. carnosa) attach themselves to damp walls 

 by aerial roots, as Ivy does, and are capable of thriving thus 



G 



