EXTEACTS FROM PROCEEDINGS. 



CXXXV 



which were precisely in the same condition as those which were 

 commented on at the last Meeting. 



Diseased Vine and Peach roots were sent from Elvaston Castle. 

 The former were in a dreadful state from the attacks of the root 

 Aphis. The Peach roots are said to be attacked by the same 

 insect, but there has at present been no opportunity of identifying 

 the parasite. Mr. Berkeley has written to Mr. Brown to request 

 him to send specimens for comparison. 



A Vine root was placed before the Committee by Dr. Masters, 

 the plant itself, and others in the same house, having been de- 

 stroyed by the spawn of the common Mushroom, with which the 

 soil had been accidentally impregnated. 



A letter from Mr. Cunningham, gardener to Lord Ebury, was 

 read, accompanied by twigs of Lime which had been decorticated. 

 Some of the twigs were undoubtedly attacked by a Splueria, but 

 the Committee believed, from the indubitable trace of teeth, that 

 the others had been stripped by squirrels, which often injure 

 Scotch Eir in the same way. Their condition was certainly not 

 attributable to any insect. 



A very interesting letter was read from Mr. J. Anderson Henry, 

 detailing some of the results of his experiments on hybridizing, 

 and accompanied by illustrative specimens. The letter will be 

 published at length in the Society's Journal. 



Dr. Masters then gave an account of the condition of the boxes 

 of seeds under experiment at Chiswick. It appeared that there 

 was no difference, whatever manure was used, in any of the boxes 

 of the same seed as to the time of germination, though there are 

 even now evident differences in the condition of the young plants. 



Dr. Voelcker expressed his surprise % at this, as he had found 

 sulphate of ammonia retard germination. 



Dr. Masters showed some excellent drawings of a pale yellow 

 Ophrys found in Kent by Mr. Oxenden, who supposed it to be 

 Ophrys lutea. It was, however, considered merely a pale variety 

 of the Bee Orchis. 



It was resolved that the Sub- Committee on Spots in Orchids 

 should meet on the 20th May at Mr. Lowe's, Clapton, and that 

 the experiments at Chiswick on the effect of different manures 

 should be inspected on the 21st May. 



Hoots of a Pine were exhibited infested with mycelium, which 

 was developed at the base of the trunk into the column of Polyporus 

 versicolor. Several trees had died from a similar attack. 



