ON GREENHOUSE PLANTS. 



729 



and not to be grown as 

 greenhouse - plants). The 

 flowers are borne in sum- 

 mer. Sorts : C. Auran- 

 tiiim (Sweet Orange) (Fig. 

 474), C. Bigaradia (Seville 

 Orange), C. decumana 

 (Shaddock), C Limonum 

 (Lemon), C.Linietta (Lime), 

 and C. medica (Citron) 

 (Fig. 475). 



Clethra arborea is 

 known as the Lily of the 

 Valley Tree, having white 

 flowers somewhat resem- 

 bhng those of that plant. 

 Propagate by cuttings of 

 the young wood in April or 

 May, and grow cool. It 

 makes a fine specimen 

 plant, and flowers in August 

 and September. 



COLEONEMA PULCHRUM 



shrub, bearing red flowers 

 Propagate from cuttings 



IS 



a 

 in 



shrub 



pretty 

 May. 



of the young 

 shoots in June and 

 July. Grow in peat, 

 loam, and sand, in 

 the cool pit. The 



Fig. 475. — Citrus medica. 



Fig. 476. — CoRREA cardixalis. 



attams a 

 height of 

 between 

 4ft. and 5ft. 



CoRONiLLA GLAUCA is a small- 

 growing plant, having yellow fra- 

 grant flowers. Propagate by cuttings 

 (which root freely) in early sum- 

 mer, in the cool pit, growing in 

 the same house, and placing out- 

 side towards the end of summer. 

 Soil : loam, leaf-soil, and sand. 

 Flowers in June and July. There 

 is also a vellow variegated form. 



CoRREAS are useful for summer 

 (June) flowering. Propagate by 

 cuttings in bottom-heat in April 

 and ]\ray. Some sorts do not 



