218 Qieeries and Answers. 



[It is admitted, in Vol. XI. p. 318., that there is a slight shadow of doubt 

 banging over the impression that these two plants were produced from one 

 seed ; otherwise the facts of the caso would lead to a conclusion different to 

 that from which those of the cases related by Mr. Baxter would lead. As it 

 is, with best thanks to both correspondents for the relating of the cases, there 

 is ground of need for additional cases before the question can be regarded as 

 settled. Any correspondent who may feel interested in it, may assist in set- 

 tling it by sowing individual seeds of mistletoe, quite distinctly from one an- 

 other, and observing and stating the results. It can scarcely be pr-acticable to 

 discern which seeds contain more embryos than one, before they have germi- 

 nated to evince them ; but it is essential, and much, to be able, if more than one 

 plant be developed in any place of sowing, to feel certain that they have pro- 

 ceeded from one seed. 



The fact stated by Mr, Turner, that young, living shoots had sprouted forth 

 about 1 in. distant from the dead stump of an older plant, is very interesting 

 in its apparent relation to a question first mooted by Professor Henslow, and 

 communicated by him for the Magazine of Natural History, and published in 

 that work. (Vol. VI. p. 500.) The nature of this question will be apparent 

 from the following conclusion of Professor Henslow's :...." there can be 

 no doubt of the mistletoe being propagated [in the bark or young wood of the 

 trees in which it is parasitically established] in the manner of those terrestrial 

 plants, which, like the potato, possess rhizomata, or under-ground stems, from 

 whose surface young plants are developed at intervals." 



The male flowers in one of the numbered sets of which Mr. Baxter sent 

 specimens were in bloom, and had an odour somewhat resembling that of ripe 

 apples, perceptible on being smelled to.] 



The Raisin des Carmes, and other Grapes. — If this should meet the eye of 

 any person who knows any thing of the original plants from which Mr. Hooker's 

 drawings of the raisin des Carmes and Black Prince grapes were taken for 

 the Pomona Londinensis ; and if those plants are still existing, or authen- 

 ticated plants raised from them ; I should be much obliged to receive an eye 

 of each by post. Perhaps Mr. Fish would take the trouble of making the en- 

 quiry, and procuring the cuttings for me. The Black Prince was figured from 

 some place about Highgate, and the raisin des Carmes from a plant in the 

 possession of "J. R. Wheeler, Esq., of Gloucester Place, New Road, London, 

 who received the plant from George Jenner, Esq., of Chiselhurst." — D.Beaton. 

 Haffield, Ledbury, Herefordshire. 



White Scale on Pine Plants. (Vol. XI. p. 604.) — My method of destroying 

 the white scale on pine plants is as follows : — Take soot and sulphur, each an 

 equal quantity, and mix them well together in a dry state; then take a small 

 brush, or a bit of sponge tied to the end of a small stick, and apply the above 

 mixture to the plants, causing it to run down between the leaves as much as 

 possible. I found that one dressing cleaned a pit of pine-apple plants under 

 my care ; and I never have seen any insect on them since, though it is two years 

 ago. This powder has been used by others, as well as myself, and it has no 

 bad effect on the plants whatever. — William Trotter. Flitwick Gardens, Nov. 

 27. 1835. 



The Canker on Cucumber Plants. (Vol. XI. p. 605.) — I find that the spread- 

 ing of fine white sand, about half an inch deep, over the surface of the mould in 

 the frames in use for early forcing, is an effectual means of keeping away the 

 canker, and also the damp, provided a proper heat be kept up. It also keeps 

 down the rank steam, which is often injurious to the plants. — /c/. 



The Canker on Cucumber Plants. (Vol. XI. p. 605.) — In answer to Mr. 

 Shuttleworth's enquiries respecting the canker, to which cucumber plants are 

 subject, I have to observe, that, when proper water is used, it is seldom that 

 canker makes its appearance. In order to remove it, laj' on the affected place 

 fresh lime finely powdered ; and repeat this every day until the disease disap- 

 pears, taking care to brush off that which was laid on the preceding day. — W. 

 Henderson, Gardener. Crum Castle, March 1. 1836. 



