BL A 



89 



BLI 



chrysnlids. Sheep folding must destroy other materials. The flavour is better, 



the insect in every state. Deep diiijiing and decay is less liable to be induced, 



is an excellent |)raciice, when the cliry- Lettuces and cabbages are usually 



salids are in the soil. Drilliiitr is a tar whitened by tying the leaves over the 



superior practice to sowing the seed heart or centre bud, but even in these 



broadcast. Long raw manure harbours instances the blanching pot operates 



the beetles. The benefit derived (Vom much more effectually. In remote 



the application of lime and soot is very country i)Iaces blanching pots may not 



doubtful. Mangold wurzel is not favour- be readily obtained ; an equally useful 

 able to the beetles, and Swedes are , aid is found by placing together two 



probably less attractive than white tur- boards of a convenient length, so as to 



nips. Mixing while turnips with Swedes form as it were two sides of a triangle, 



18 not desirable, as the beetles may be or double pitched roof. 



attracted by the strong scent of the for- 

 mer. Early sowing is attended with 

 disadvantages. Destroy charlock, it 

 affords support to the beetles before 

 the turnips come up." 



The most effectual banisho^nt of the 

 turnip fly, I think, is securedT^f sowing 



HLANDFORDIA. Two species. 

 Green-house herbaceous perennials. 

 Suckers or seeds. Sandy loam and 

 peat. 



BLAST or BLIGHT, is the popular 

 name for any withering of plants of 

 which neither the scientific title nor the 



the surface of the soil with gas lime causes are known to the observer. The 



(liydro-sulphuret of lime) the next morn- mildew of corn ; the honey dew on 



ing but one after the turnip seed has fruit trees; the withering occasioned 



been sown. This is so offensive to the by violent cold winds in early spring, 



insect as to drive it away just at the 

 time the young plants are appearing 

 above ground. The most certain pro 

 cess is, at\er all,tosow very thickly ; the 

 flies will have their share — if too many 

 remain, thin out. 



BLACK VARNISH TREE. See 

 Melanorrhaa. 



BLACKWELLIA. Six species. 

 Stove or evergreen shrubs. Cuttings. 

 .Sandy peat. 



BLADDER BLICHT. See Peach. 



BLiF^RIA. Eleven species. Green- 

 house evergreen shrubs. Cuttings. 

 Sandy peat. 



BLAKK.\. Two species. Stove 

 evergreen shrubs. Ripe cuttings. Peat 

 and loam. 



BLANCHING, or etiolation, is 

 effected by making plants grow in the 

 dark, and the more completely the light 



and the ravages of the hawthorn cater- 

 pillar, are all spoken of by the unin- 

 formed under the above titles. 



BLECHNUM. Thirteen species. 

 Stove or green-house herbaceous pe- 

 rennial ferns. B. serriilatum is hardy. 

 Seeds or division. Sandy loam and peat. 



BLECHUM. Four species. Stove 

 herbaceous perennial ferns. Cuttings. 

 Loamy peat. 



BLEEDING. See Eitravasated Sap. 



BLEPHARIS. Five species. Stove 

 and green-house plants. B.furcata is 

 an evergreen shrub. IL procumbens an 

 evergreen trailer. Seeds. Loam and 

 peat. 



BLEPIIILIA. Two species, 

 herbaceous perennials. Division 

 mon soil. 



BLETIA. Eleven species, 

 orcbideous plants. Division. 



is excluded the more entire is the ab- j peat and light loam 



Hardy 

 . Com- 



Stove 

 Sandy 



sence of colour from the leaves and 



stenvs of the plants. The colouring j evergreen tree 



matter of these is entirely dependent peat 



upon their power to decompose water 



liUCUl A sapida. AkeeTree. Stove 

 Cuttings. Loam and 



BLIND PLANTS frequently occur 

 and carbonic aciit gas, a power they do in the cabbage and others of the bras- 

 not possess when light is absent. The sica tribe. They are plants which have 

 effect of blanching is to render the parts failed to produce central buds, and as 



more delicately flavoured, more ])ieas- 

 ing to the eye, and more crisp, proper- 

 ties very desirable in sea kale, celery. 



these are produced from the central 

 vessels, if the top of their stems be cut 

 away, they usually emit lateral or side 



rhubarb, endive, lettuces, &c. Wher- i buds from the edge of the wound. See 



ever it can be accomplished, blanching 

 pots should be employed, in preference 

 to covering the plants with earth or 



Barren Plants. 



BLITE, or Strawberry Spinach. {Bli- 

 tum.) 



