BOS 



[ 



B. Hendersofmi (Henderson's). Yellow and 

 bronze. New South Wales. 1844. 



heterophy" lla (various-leaved). 3. Yellow. 



September. New South Wales. 1792. 



lenticula'ris (lentil-leaved). 3. Yellow. 



June. New Holland. 18X3. 



linnceoi'des (Linnaea-like) . Yellow. May. 



New Holland. 1824. 



linophy'lla (flax-leaved). 3. Orange. Au- 



gust. New Holland. 1803. 



microphy'lla (small-leaved). 3. Yellow. 



July. New South Wales. 1803. 



ova'ta (egg-shape-lcaved) , Yellow. April. 



New South Wales. 1792. 



paudf(/Ua (few-leaved). 2. Yellow brown. 



June. Swan River. 1841. 

 -~vrostra'ta (prostrate). . Yellow. August. 

 New South Wales. 1803. 



rhombifo' lia (diamond-leaved). 1. Yellow. 



May. New Holland. 1820. 



rotundifa' lia (round-leaved). 3. Yellow. 



May. New Holland. 1824. 



rtffa (reddish-yellow-^o^-crerf) . 6. Orange. 



August. New Holland. 1803. 



scolope'ndrium (Hart's-tongue-Zeared). 10. 



Yellow. June. New South Wales. 1792. 

 i#pme'sccns(spined). Yellow. New Holland. 



1849. 

 >tenuicau' Us (slender-stemmed). ^. Yellow. 



April. Van Diemen's Land. 1836. 



mrna! ta (twiggy). 2. Yellow red. June. 



Swan River. 1842. 



BOSTP.ICHUS, a class of beetles, many of 

 which are very injurious to the crops of 

 the garden. 



B. dispar, Apple bark beetle. The 

 female of this insect bores into the wood 

 of the apple tree, and there deposits her 

 eggs, generally in the month of May ; 

 and its perforations are so numerous and 

 extensive, as frequently, on the conti- 

 nent, to destroy the tree. In England it 

 rarely occurs. The perforations arc con- 

 fined to the alburnum or young wood. 



B. typographies, Typographer bark 

 beetle. This attacks the pine tribe, espe- 

 cially the silver fir. A drawing of this 

 insect is given at page 329, vol. iii., of 

 The Cottage Gardener. 



B. pinastri, Pinaster, or red bark beetle, 

 confines its attacks to the pines, leaving 

 the firs untouched, as the B. larius lives 

 exclusively on the larch, and the B. ortho- 

 graphus on the spruce fir. 



BOSWE'LLIA, Olibanum tree. (Named 

 after Dr. Boswell of Edinburgh. Nat. 

 ord., Amyrids [Amyridaccffi]. Linn., 

 lQ-l)ecandria, \-monogynia). The brittle 

 resin of Boswcllia boiled with oil to ren- 

 der it soft, is used in the East as pitch 

 for the bottoms of ships, and in the dry 

 state as frankincense. Stove trees ; cut- 

 tings of half- ripened shoots, in sand and 



i ] BOT 



peat; peat and loam. Summer temp., 

 60 to 80 ; winter, 50 to 60. 

 B. gla'bra (smooth). 30. Pale yellow. Coro- 

 mandel. 1823. 



scrra'ta (saw-edged-feared). 20. Pale yel- 



low. East Indies. 1820. 



BOTHY. The lodgings assigned to young 

 gardeners in the northern part of the 

 kingdom, and miserable hovels they often 

 were, and in some cases still are. 



BOTRY'CERAS. (From botrys, a bunch, 

 and keras, a horn; in reference to the 

 bunches of horn-like racemes. Nat. ord., 

 Anacards [Anacardiaceaej. Linn., 4- 

 Tetrandria, \-vnonogynia). Greenhouse 

 evergreen shrubs ; cuttings of ripened 

 shoots, in sand, under a hand-light in a 

 frame, and the hand-light tilted up at 

 night ; sandy peat. Summer temp. 55 

 to 65 ; winter, 38 to 45. 



B. lauri'num (laurel-like). 4. New Holland. 

 1823. 



BOTRY'CHIUM, Moonwort. (From lo- 

 trys, a bunch ; in reference to the bunch- 

 like formation of the seed apparatus on 

 the back of the leaf. Nat. ord., Ferns 

 [Polypodeacese]. Linn., l^-Cryptogamia, 

 l-filices). Perennial ferns hardy, with 

 but one exception ; chiefly divisions ; 

 peat and loam. B. australe should be 

 protected in winter. 



B. austra'lc (southern). 1. Brown. June. 

 New Holland. 1823. Half hardy. 



disse'ctum (cui-leaved) . $. Brown. July. 



North America. 1806. 

 fumarioi'des (Fumitory-like). A. Brown. 



July. Carolina. 1806. 

 luna'rium (common moonwort). A. Brown. 



May. Britain. 



obli'qutan (twisted), g. Brown. August. 



North America. 1821. 



virffi'nicum (Virginian). 1. Brown. August. 



North America. 1790. 



BOTTLE GOURD. Lagena'ria. 



BOTTOM HEAT. Naturally the tem- 

 perature of the soil always bears a due 

 relative proportion to that of the air. 

 When the temperature of the air de- 

 creases, that of the soil also decreases, 

 but very slowly ; and when the atmos- 

 pheric heat increases, that of the soil 

 also gradually rises. Bottom heat, or 

 heat applied to the roots of plants, is the 

 artificial mode of imitating this proceed- 

 ing of nature in our hothouses, and other 

 structures of that kind. If the tempe- 

 rature of the soil be too cold in propor- 

 tion to the temperature of the atmosphere, 



