42 glenny's handbook 



BUPHTHALMUM. Ox-eye. [Compositse.] Shrubby 

 and herbaceous plants, the former increasing by cuttings, the 

 latter by division or by seeds, and all growing in a soil of 

 equal parts sandy loam and leaf-mould. There are many 

 varieties. 



BUPLEURUM. Hare's Ear. [Umbelliferse.] Hardy 

 annuals or perennials, of no horticultural importance. 



BURCHARDIA. [Melanthacese.] Greenhouse perennial. 

 Soil, sandy peat, with abundant moisture. Increased by 

 division. B. umhellata, flowers white. 



BURCHELLIA. [Cinchonaceae.] Evergreen shrubs, 

 requiring a temperature intermediate between the stove and 

 greenhouse. Soil, loam and peat, of open texture. Propa- 

 gated by cuttings in sand in a gentle heat. B. Capensis, 

 with flowers light red, is the only one grown. 



BURNET. See SANauisoRBA. 



BURTONIA. [Leguminosse, § Papilionaceae.] Handsome 

 small evergreen greenhouse shrubs. Soil, three-fourths light 

 peat, one-fourth sandy loam, with sand and charcoal lumps : 

 careful watering. Propagated by cuttings in sand under a 

 bell-glass, or seeds. The principal are B. conferta, B. 

 piilchella, and B. villosa, all purple. 



BUTCHER'S BROOM. See Ruscus. 



BUTOMUS. Flowering Rush. [Butomacese.] Beau- 

 tiful hardy perennial aquatics. They should be planted on 

 the margin of a pond or piece of water, in the muddy bank, 

 and soon establish themselves, spreading by means of suckers 

 from the root, which afi'ord means of propagation. 



BUXUS. Box. [Euphorbiaceae.] Hardy evergreen shrubs, 

 remarkably neat both in habit and foliage. There are many 

 varieties of the common tree Box, B. sempervirens (which, 

 however, is a shrub), and of these the broad-leaved and gold- 

 striped are the best. They grow in common garden soil, pre- 

 ferring loam. Increased by layers or cuttings planted in 

 August. There have been two or three Chinese varieties 

 recently introduced. 



CABOMBA. [Cabombacese.] A small interesting green- 

 house aquatic. Shallow water, with a layer of rich loam at 

 bottom. Increased by division. Requires to be rested in winter. 



CACALIA. [Compositse.] This genus consists partly of 



