BANKSIAN ROSES. 203 



Of course the more succulent the specimens are, the longer period 

 will be required to complete their drying process ; but when specimens 

 have been in the press for a week or ten days, they may be taken out 

 and arranged in the herbarium. The subject will be continued next 

 month. 



THE SPOTTING ON PELARGONIUM LEAVES. 



BY MR. THOMAS GRAY, FLOWER GARDENER, BROOKE HOUSE, LIVERPOOL. 



Very numerous have been the complaints by Pelargonium growers 

 about the injurious effects of the spot on the leaves, &c. of Pelar- 

 goniums. I have a large collection of the best kinds, botli in fancies 

 and the other classes. I never had a single plant affected with this 

 pest previous to the present season ; but procuring some of the newest 

 kinds early in spring, I discovered that as soon as the leaves began fo 

 unfold they were frightfully affected by the spot. I directly separated 

 the newly-procured plants from my previous collection, and placed 

 them in a dry pit frame, where they stood elevated upon a wood lattice 

 framework, so that the water dripping from the pots readily drained 

 away, and the bottom of the pit being concrete, and slightly sloping, 

 the extra water ran into the channel along the front, and entered the 

 drain at the lowest corner. The first step was to dip the heads of the 

 plants in water ; and having done so, whilst wet I dusted them well 

 all over the leaves, as well as the under sides and the branches. This 

 being done, I had the glass lights placed over them, but so fixed that 

 they were raised a foot above the usual framework, in order not only 

 to co\er the plants, so that rain might not wash the sulphur away, but 

 the space at the front and back allowed a free current of air to pass. 

 The sulphur was permitted to remain for a fortnight. 1 then had the 

 plants again dipped over head ; and moving them in the water for a 

 time, all the sulphur was removed, and I discovered that the spotting 

 was arrested ; and now the plants have a perfectly healthy appearance, 

 and not a spot is to be seen. 



BANKSIAN ROSES. 



BY ALPHA. 



In some early volume of your Magazine I recollect some judicious 

 remarks are made relative to the particular treatment which this class 

 of Roses require, it being very different from that which other Roses 

 need. As many of the present subscribers may not have read those 

 particulars, I beg to state that the Banksian Rose does not produce its 

 Mowers on the wood of the present year's growth as other Roses do, 

 but on the wood of the previous year. 



In consequence of this particular, the great object must be to obtain 

 strong well-ripened wood of this season to supply the bloom of next 

 year. The principal attention to effect this is to treat the Rose very 

 similar to what is practised with the Peach-tree, as it regards its 



