BOG 



BOL 



ord., Irids [Iridacese]. Linn., 3-Trian- 

 dria \ Mono'iynia. ) 



The species in this genus should have been 

 united to Aristea. Seeds in April; divisions in 

 iiutumn or spring. Sand}' loam ; protection of a 

 cool greenhouse or pit in winter. 

 J3. auranti'aca (orange), f Orange. March. 

 Bcleia. 1827. Hardy perennial. 



gladia'ta (sword-shaped). 2. Yellow. June. 



Cape of Good Hope. J8l6. 



spatha'cf.a (sheathed). . Yellow. June. 



Cape of Good Hope. 1798. 



BOCCO'NIA. (Named after P. Boccnne, 

 M./J., a Sicilian. Nat. ord., Poppy worts 

 [Papaveracese], Linn., \i-Dodecandrla 

 1-Monogynia.) 



Stove evergreen shrubs. Cuttings in sand and 

 lieat; fibry, sandy loam. Summer temp., 60 to 

 *0; winter, 55 to 60. 



B.frute'scens (shrubby celandine}. 10. White, 

 yellow. February. VV. Ind. 1/39. 



integrifo'lia (entire-leaved). 4. White. Fe- 



bruary. Mexico. 1820. 



BOZ'BERA. (Named after Bceber, a 

 Eussian botanist. Nat. ord., Composites 

 [Asteracea?]. Linn., IQ-Synyenesia 2- 



A greenhouse evergreen shrub. Cutting* of 

 young, firmish shoots under a glass ; requires a 

 pit or a cool greenhouse in winter. 

 B.inca'na (hoary - herbaged). 1$. Golden. 

 Mexico. 1828. 



There are other species, but not deserving cul- 

 tivation. 



BOG-BEAN. Menya'nthes trifolia'ta. 



BOG-EARTH, HEATH-MOULD, or PEAT. 

 By gardeners this is understood as not 

 meaning that mass of moss, or sphagnum, 

 dug out of wet, fenny places for fuel, hut 

 a sharp, sandy soil, mixed with the dead, 

 librous roots of heath, and usually of a 

 dark-grey colour, such as is found upon 

 the surface beneath the heath on Wim- 

 bledon, Bagshot, and many other dry com- 

 mons. Peat of the best description is 

 thus constituted. Of 400 parts : 



BOG-EARTH PLANTS. See AMERICAN 

 PLANTS. 



BOG-MOSS. Sphagnum. 



BOILER. The vessel employed to sup- 

 ply the pipes or tanks with hot-water or 

 steam, when either of these is used for 

 heating purposes. Many are the inge- 

 nious and intricate boilers from time to 



time offered to the gardener ; but, after 

 much experience with boilers of all de- 

 scriptions, we can confidently say the 

 most simple is the best. The smaller 

 the boiler and the fireplace, compatible 

 with efficiency, the greater is the economy. 

 We can tell the gardener, also, most de- 

 cidedly, that the total size of the boiler 

 has nothing to do with that efficiency; 

 the only point to be secured is, that a 

 sufficient surface of the boiler be exposed 

 to the fire. The following table shows 

 the amount of boiler-surface which must 

 be exposed to the fire to heat given 

 lengths of pipe, respectively 4 inches, 3 

 inches, and 2 inches in diameter : 



SurfaceTof "boiler exposed I 4-inch I &-inch 1 8-inch 



to the lire. | pipe. | pipe. | pipe. 



ft. ft. ft. 

 3 square feet will heat 200 or 266 or 400 



5| 300 400 600 



400 533 800 



500 6t>6 ,, 1000 



12 /OO 933 ,, 1400 



10(10 1333 2000 



To prevent the scale, or limy crust, which 

 is often so troublesome, dissolve in the 

 water at the rate of one ounce of sal 

 ammoniac (muriate of ammonia) to 

 every sixty gallons. Do this twice in 

 the year ; as, in October and April. 



BOIS-PERDIX (Partridge-wood). Heis- 

 te'ria. 



BOLBOPHY'LLUM. (From bulbos, a bulb, 

 and phyllon, a leaf; referring to the 

 leaves issuing from the apex of the bas- 

 tard bulbs. Nat. ord., Orchids [Orchi- 

 dacese]. Linn., 2Q-Gynandria 1-Mono- 

 gynia.) 



Stove orchids. Division of the plant, when 

 fresh potting; sandy, lumpy peat, potsherds, 

 charcoal, and hard chips, raised above the pot, 

 well drained, and the plant fixed there, or on 

 blocks. Summer temp., 60 to 90, and moist; 

 winter, 55 to 65, and dry. 



B. barbi'gerum (bearded). . Greenish-brown. 

 June. Sierra Leone. 1835. 



bracteola'tum (small-bracted). 1. Yellow, 



purple. July. Demerara. 1836. 



Careya'num (Dr. Carey's). . Brown, piftr- 



ple. October. Nepaul. 1832. 



coco'inum (cocoa-nut). 1. Flesh. October. 



Sierra Leone. 1835. 



cu'preum (copper-flowered). Copper-coloured. 



Manilla. 1837. 



ere'ctum (upright). Mauritius. 1834. 



fla'vidum (yellowish). Yellow. March. Sierra 



Leone. 1840. 



fu'scum (brown-flowered). Chocolate. April. 

 Sierra Leone. 1837. 



hi'rtum (hairy). Whitish. E. Ind. 1846. 

 -imbricu'tum (imbricated). Purple. March. 



Sierra Leone. 1845. 



leopardi'num (leopard-spotted). Yellowish- 



green. E. Ind. 1837. 



