THE FLORAL WORLD AND GARDEN GUIDE. 187 



"iy of them to remain out during drenching rains, although none of 

 tnem are ao tender as serrulata ; and in placing them in the green- 

 house for the winter it will not be necessary to be so particular in 

 choosing a place for them as in the former case, as they are not so 

 delicate^ provided they have a nice, airy, light situation, and are 

 wintered moderately dry. Most of the Buronias are very liable to 

 the attacks of mildew, which, if not kept down, will ultimately 

 destroy the plants. This frequently makes its appearance in autumn, 

 after, and sometimes before they are placed in their winter quarters. 

 As soon as it is perceived, apply sulphur, which entirely destroys it. 

 I have always found sulphur efficient, and I have made a practice, 

 every autumn, of dusting the plants all over with it, and allowing it 

 to remain upon them until spring, when a syringe and some clean 

 water will remove it, and they then look green and healthy. 



THE GENUS CYTISUS. 



BY A COREESPOXDEXT. 



[BE species and varieties belonging to this genus are 

 among the gayest and most easily cultivated of our 

 winter and early spring flowering plants, producing, 

 with ordinary management, an abundance of bright- 

 coloured cheerful-looking flowers, for some three months 

 in succession ; and for amateurs, having only a small collection of 

 plants, nothing could be more useful. Beginners should commence 

 with young plants, of C. racemosus, for instance, which if procured 

 at once, will form nice little specimens for blooming in spring ; they 

 should be placed in a cold frame, or a cool airy part of the green- 

 house, giving them plenty of water at the root, syringing them 

 overhead on the mornings and evenings of bright days, and keeping 

 them near the glass, to induce close, short-jointed growth. If the 

 pots are found to be well-filled with roots, which, in the case of 

 healthy plants received from the nursery, will be sure to be the 

 case, give a liberal shift, say into pots two sizes larger than those in 

 which they have been growing. 



For soil, use about equal parts of good, rich, light turfy loam, 

 and strong fibry peat, broken up, so that it would pass through a 

 half- inch-mesh sieve, and well intermixed with sharp sand, and some 

 lumpy bits of charcoal, to keep the mass open after the decay of the 

 fibre. Care should be observed to thoroughly drain the pots, for 

 the plants will be found to require a very liberal supply of water; 

 and unless perfect drainage is secured, the soil will be apt to 

 become sour towards the bottom of the pots. Beyond the ordinary 

 routine of watering, syringing, etc., very little attention will be 

 necessary during the growing season ; hut if a spider should make 

 its appearance, no time must be lost in eradicating it, by laying the 

 plants on a clean mat, and thoroughly washing the under sides of 



.Ji.no. 



