BOX-EDGINGS. 



37 



BROMPTOX STOCKS. 



effect is to place them in groups of 

 one order, tribe, or genus, in a 

 group. These groups have the best 

 effect when of a circular form, and 

 placed on a lawn. The position of 

 the groups relatively to each other 

 should be such as to correspond 

 with the botanical system followed. 



Bottom -HEAT is the warmth 

 imparted to the roots of plants, by 

 plunging the pots in which they 

 grow into a hotbed or bark-pit. 

 The effect this produces in stimu- 

 lating the plants is very great ; 

 and it is particularly advantageous 

 in striking those cuttings which, 

 \inder ordinary circumstances, do 

 not readily throw out roots. Bottom- 

 heat is often very useful in enabling 

 hothouse plants to stand in the 

 open air during summer. A bed 

 may be formed of bark, decayed 

 leaves, or stable manure, in which 

 the pots may be plimged, and the 

 surface covered with a thin coating 

 of turf ; and in this manner all the 

 hothouse climbers might be trained 

 over the trellis-work of a verandah, 

 and Palms, Bananas, and other 

 tropical plants might he made to 

 decorate the open ground of an 

 English garden. 



Bouva'rdia. — Rubiacece. — B. 

 triphylla and its varieties are very 

 ornamental, with scarlet flowers and 

 smooth shining leaves. It grows 

 freely in loam and peat in a warm 

 situation in the open air, or in a 

 greenhouse ; and it is increased by 

 cuttings of the roots. B. versicolor 

 has fine red flowers and is very 

 ornamental, though it is more tender 

 than B . triphylla. 



Bowers. — Slight arbours, formed 

 by training climbing shrubs over 

 trellis-work so as to form a covered 

 seat. They only differ from arbours 

 in being less closely covered. — See 

 Arbours. 



Box-edgings. — The kind of Box 



used for this purpose is Buxus serti- 



pervirens nana. For its culture, 

 see Bu'xDS. 



Box-tree. — See Bu'xus. 



Brachy'come. — Compositor. — 

 The great Swan Eiver Daisy. — A 

 very beautiful annual plant from the 

 banks of the Swan Eiver in South 

 Australia. It was introduced in 

 1840, and grows freely in the open 

 ground, though it flowers best in the 

 greenhouse, being easily injured by 

 wet. When raised from seed, the 

 flowers are of several different 

 shades, varying from the darkest 

 purple to a pink or white. 



BiiACHYSE'MA. — Leguminoso;. — 

 B. latifblium is a very ornamental 

 New Holland climber, with fine large I 

 glaucous leaves and crimson flowers ; 

 and it grows freely in loam and peat, 

 flowering abundantly, and ripening • 

 seeds ; by which, or by layers or cut- I 

 tings, it may be readily propagated. I 



Bramble. — See Ru'bus. I 



Brillanta^isia. — AcantMcece. — j 

 B. Oivariensis is a very showy stove I 

 plant with purple sage-like flowers, j 

 which appear in March. It is a 

 native of Sierra Leone. } 



Bri'za. — Graminece. — Quaking- 

 grass. — B. ?7iecZi«, the common kind, i 

 is a perennial ; and B. maxima, a ; 

 gigantic species, is an annual, re- 

 quiring only to be sown in March or 

 April, in the open borders. 



Brompton Stocks. — Maitliiola 

 incana. — These splendid flowers are 

 biennials, and their seed should be 

 sown early in May, in a border of 

 light sandy soil -with an eastern 

 exposure, and never in front of a 

 hothouse or south wall, as they can- 

 not bear too much heat. The seeds 

 shoidd be sown very thinly in narrow 

 drills, made about six inches apart. 

 As soon as the plants begin to grow, 

 and have expanded their second pair 

 of leaves, they should be watered 

 every evening with a watering-pot 



