164 SELECTION OF PLANTS. 



when the cold nights will destroy it. The bloom is a 

 pretty purple, that may be seen in the garden of the 

 Horticultural Society. 



507. RHODODENDRON ARBOREUM, var. ALBUM. White 

 Tree Rhododendron. 



Class 10th. Decandria Monogynia. 



Never did we behold any flower more perfectly lovely 

 than was this, when we received it from the Conservatory 

 in the month of February. Neither the rich crimson of 

 the common tree Rhododendron, nor the deep rose-colour 

 of its pale variety, can for a moment be compared with 

 that admirable delicacy, which no art can imitate, and no 

 pen describe. This beautiful plant blossoms in April. 



The only way to cultivate this species is to treat them as 

 hardy conservatory plants. 



508. TRITELEIA LAXA. Loose-lowered Triteleia. 



Class 6th. Hexandria Monogynia. 



This is considered to be a very handsome plant, easily 

 propagated by offsets and seeds. It blossoms in June and 

 July, perfectly hardy, and easy to cultivate, as it will grow 

 in common garden soil, but prefers such a mixture of peat 

 and sand as is found in a border for American plants. 



509. GARRYA ELLIPTICA. Elliptic-leaved Garrya. 



Class 22nd. Dioecia Tetrandria. 



A hardy evergreen shrub, native of northern California. 

 It has generally been cultivated in peat, but it certainly 

 prefers a loamy soil, and is readily increased by layers. 



