SCIENTIFIC COMMITTEE, JUNE 14, 



lxiii 



House, Yoxford, sent some bulbs which had been planted last 

 July : they had never thrown up any leaves, but had formed 

 fresh bulbs upon the old ones, which had withered. It appeared 

 to be a case common in Potatos, when it is called super-tubera- 

 tion, fresh tubers being formed at the expense of the old one. 

 It was possibly due to the Freesia bulbs having been planted at 

 the wrong time of the year, energy being expended in a wrong 

 direction. 



Cineraria Hybrids. — Mr. James, Woodside, Farnham Royal, 

 Slough, sent a collection of hybrids raised between (C. cruenta 

 x Garden C.) d x lanata $ . They were a small selection of a 

 numerous progeny, the greater number of which were said to 

 resemble the garden form ; but the present ones had a tomentose 

 stem, branches, and under surface of the leaves, which last 

 resembled in form those of C. lanata. The blossoms were 

 rather small, some being a pure white, others mauve, and they 

 were remarkable for their abundance. Unfortunately, the best 

 plant with white flowers refuses to set much, if any, seed ; but 

 it was hoped that Mr. James would persevere and try to establish 

 a new race, which would certainly be attractive from their silvery 

 appearance. 



Begonia Leaves Diseased. — Mrs. Caddy, Lion Gate Gardens, 

 Richmond, sent some leaves of these plants decayed round the 

 margins. They were forwarded to Dr. W. G. Smith for further 

 examination. 



Scientific Committee, June 14, 1898. 

 J. T. Bennett-Poe, Esq., in the Chair. 



"Silver" Leaf Disease. — Specimens of this disease on Plum- 

 trees were received from Mrs. Floyer, Basingstoke. The disease 

 is known to be very common on Pomaceous plants, the silvery 

 appearance being due to the raising of the epidermis from the 

 underlying tissue. The disease is very fatal both indoors and 

 out, and is in all probability attributable to the growth of a 

 fungus the nature of which has not yet been ascertained. 



Apple Leaves. — Some leaves probably injured by frost or 

 scald from the effect of the sun shining on a damp surface were 

 also sent. 



