SCIENTIFIC COMMITTEE, JUNE 14, Ixiii 
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.) A 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. 
