162 MISCELLANEOUS INTELLIGENCE. 



Octandria Monogynia. (Synonym, Doncklaeria diversifolia.) A neat shrubby 

 plant, growing freely in a warm greenhouse. A native of Mexico. The flowers 

 are produced in corymbose, terminal racemes, of a pale pink colour. Each 

 blossom is about three quarters of an inch across. It is in most of the principal 

 nurseries. 



Hovea. spi.endens. Splendid-flowered. (Pax. Mag. Bot.) Leguminosae. 

 Monadelphia Decandria. It is from the Swan River colony, and has bloomed 

 with Mr. Knight, nurseryman, King's-road, Chelsea, London. It bears a con- 

 siderable resemblance to H. Celsii, but the leaves are narrower. The flowers 

 are produced always in pairs, and in a more loose spike. The standard is of an 

 intense bright blue, having a white ring at the base. Wings and keel of a 

 purplish blue. It is, like the other kinds, deserving a place in every greenhouse. 



PART III. 

 MISCELLANEOUS INTELLIGENCE. 



QUERIES. 



On the destruction ok Cockscombs. — Having been much disappointed in 

 some Cockscombs, which promised well up to the time of blowing, but have 

 fcince been affected by disease, attacking them just at the junction of the stalk 

 and blossom, I should feel much obliged by your noticing it in your next 

 Number. The stalk turns brown, and the head droops and decays. They were 

 grown in a warm frame, and afterwards removed to one still warmer. Sulphur 

 was applied, supposing it to be a sort of mildew, but without effect. 



M. G. 



[When sprinkled over head frequently with water, and more especially cold or 

 hard water, the combs rot at their origin, as stated above. — Conductor.] 



On a Disease affecting Pelargoniums. — I should be very much obliged if 

 you, or any of your correspondents, could explain to me the cause, and give me 

 a remedy for the blight which infests my greenhouse plants. I enclose some 

 leaves, which will show you what it is. I am aware that a common observer 

 would say it was dirt, or soot from the neighbouring chimneys ; but this cannot 

 be the case ; there has not been a fire in the greenhouse half a dozen times all 

 winter, and I have taken great pains to wash the leaves with a brush. I have 

 had them all put out of doors and syringed, and have also used tobacco-water; 

 still, however, there is scarcely a plant free from it, and the Geraniums are par- 

 ticularly infested ; and even those plants that have been out of doors a month, 

 and, therefore, have been well washed with thunder showers and almost daily 

 rain, they are as bad as those in the greenhouse. The greenhouse has not been 

 built mure than two years, is clean, light, and airy, and stands by itself in the 

 flower-garden, apart from any smoke. Any information in your next Number 

 of the useful Fi.ouicui.turai. Cabinet would greatly oblige 



June 6, 1843. Azalea. 



[The plants, of course, required water during winter ; fire was seldom applied, 

 so that to keep them from frost the house was most likely kept close, which 

 encouraged mildew, with which the leaves sent have been affected. Dry sul- 

 phur (common) dusted over the foliage would speedily remedy the injury at 

 present ; and a better attention to keeping the greenhouse dry and properly 

 ventilated will prevent a recurrence ill future. When the green fly attacks the 

 under side of foliage, which is often the case with Pelargoniums, the upper sides 

 are often disfigured by the excrement. When this occurs, the fly must first be 

 destroyed by smoke, or by the top of the plant being dipped over head in a strong 

 mixture of tobacco-water; after which the surface must be sponged clean. — 

 Conductor.] 



