246 ROCK GARDENS 



B. Darwinii nana. — A dwarf form of the well-known evergreen 

 species. Orange- coloured flowers. 



B. stenophylla Irwinii. — A delightful little shrub. 



B. Thunbergi minor. — A miniature of Thunbergi^ and well worthy 

 of a place. 



B. empetrifolia. — Likes rather peaty soil. Grows 18 inches to 

 2 feet, with bright orange-coloured flowers. Most charming and 

 useful. 



Betula (Cupuliferae), Birch 



Some dwarf forms of Birch will also be found very useful for 

 planting among rocks. The following will be found most suitable : 

 — B. glandulosa^ B. crenata nana. 



Bletia hyacinthina 



A hardy orchid. Requires peaty soil in a half-shady spot. 

 Flower-stems about 12 inches high, bearing deep, rosy-purple 

 flowers. A pretty plant for drier parts of the bog garden. 



Brachycome (Compositae) 



A genus of beautiful little half-hardy plants, closely resembling 

 the Daisy. 



B. Sinclairii. — Requires a sunny aspect, where it can get ample 

 moisture. Grows in a compost of loam, leaf-mould mixed with 

 small stones. A very dwarf-habited plant, only about 2 inches 

 high, spreading moderately. Leaves deep bronzy-green, and rather 

 downy, arranged in tufts. Small, white, daisy-like flowers all the 

 summer. A delightful wee plant. 



B. iberidifolia. — The Swan River Daisy, though an annual, may 

 be used to temporarily fill bare spaces. 



Bruckenthalia spiculifolia 



Half-shady position in dry, peaty loam. A dwarf-growing plant 

 of the Heath family, only some 9 inches high, with pale purple 

 flowers in July. 



Bryanthus (Ericaceae) 



A genus of small trailing shrubs of Heath family. 



B. empetrifor7nis {see Menziesa empetriformis). 



B. erectus. — Small alpine shrub, said to be a hybrid {Kalmia 

 glauca X Rhododendron Chamaecistus). — A half-shady position in 

 sandy peat. A neat evergreen shrub, about 8 to 10 inches high. 



