xlviii PEOCEEDINGS OF THE EOYAL HOKTI CULTURAL SOCIETY. 



Malformed Mushrooms.— ~Dr. Masters showed specimens of very 

 irregularly formed mushrooms, which Mr, Massee reported to be attacked 

 by a mould, Hypomyces (sp.). All such should be destroyed. 



Laurel Leaves, Diseased. — Dr. Masters also showed specimens of 

 laurel leaves with blisters upon them. Mr. Massee undertook to report 

 upon them. 



Scientific Committee, March 14, 1905. 

 Dr. M. T. Masters, F.R.S., in the Chair, and twenty members present. 



Henslow Testimonial. — Dr. Masters, on behalf of the Committee, 

 after referring to the great interest Prof. Henslow had always taken 

 in the work of this Committee, and after expressing the great regret felt 

 by all on his resignation, presented him with a silver tea and coffee 

 service, bearing the following inscription: — "Presented to Rev. Prof. 

 G. Henslow, M.A., V.M.H., by the members of the Scientific Committee 

 of the Royal Horticultural Society, in grateful remembrance of his 

 valuable services as secretary, and as a token of friendly association 

 during a period of twenty-five years." Prof. Henslow, in replying, 

 referred briefly to the history of the Committee, with which he had been 

 associated for a quarter of a century, and thanked its members for the 

 support they had always afforded him, and for the mark of their regard 

 with which they had presented him that day. 



Pine-bud Moth. — In reply to a request for information concerning 

 this, Mr. Saunders, F.L.S., reported as follows : — " The shoots of Scotch 

 fir are attacked by the caterpillars of a small moth belonging to the 

 genus Belinia, which contains several species whose caterpillars live in 

 the shoots of firs ; the commonest species is B. buoliana. When by the 

 appearance of a shoot it is suspected that there is a caterpillar within, it is 

 best to cut it off and burn it. In July, if a number of yellowish-red 

 moths, measuring about an inch across the open wings, appear, it might 

 be worth while to catch them in a butterfly net." 



Injured Crinum Bulbs. — Mr. Saunders also reported : — " The bulbs 

 were attacked by dipterous larva?, probably Lonchcea vaginalis, in large 

 numbers, by the 'bulb-mite ' Rhizoglyplius echinopus, of which there was 

 one large colony, and by one of the ' springtails,' Lipura ambulans. It 

 is difficult to say which of these pests began the work of destruction. 

 The grubs of the fly would no doubt be more destructive than the others. 

 The centipedes which were found were probably Lithobius forficatus, 

 which I believe to feed entirely on animal food ; they were probably 

 feeding on one or more of the pests." A vote of thanks was accorded to 

 Mr. Saunders. 



Hybrid Orchid. — Mr. H. Veitch showed an interesting bigeneric hybrid, 

 now flowering for the first time, Dialcelia Veitchi x , between Diacrium 

 bicornutum and Lcelia cinnabarina, which showed clear evidence of the 

 influence of both parents. A Botanical Certificate, proposed by Dr. 

 Masters and seconded by Mr. Elwes, was unanimously awarded. 



Scientific Research at Wislcy. — The Rev. W. Wilks announced that 

 some experiments had already been commenced in the gardens under the 



