XCviii PROCEEDINGS JDF THE ROYAL HORTICULTURAL SOCIETY. 
Scientific Committee, July 31, 191 7. 
Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, and three members 
present. 
Spencer Cupid Sweet Pea. — A Certificate of Appreciation was unanimously 
recommended to Mr. George T. Dickson, Newtownards, for his work along 
Mendelian lines in raising the Spencer type of flower combined with the dwarf 
habit of the Cupid form of Sweet Pea. 
Damage by Hail. — Mr. J. Fraser showed a series of plants, including Onions, 
Potatos and Peas, in which the damage done by hail storms in June was very 
evident. The Potato had its stem broken, and both Peas and Onions showed 
white spots as a result of the battering by the hailstones. 
Various Plants. — Mr. H. J. Elwes showed a number of plants from his garden, 
including Poterium tenui folium album, which there attains to 6 feet in height ; 
Prunella grandiflora and P. Webbiana j Dendrobium aurantiacum, the pseudo- 
bulbs of which are collected and used in Japanese medicine ; Lycoris squamigera 
and Crinum yemense, which thrive at Colesborne against a wall ; Crinum 
Rattrayi ; Hymenocallis sp. with an exceedingly sweet scent ; Alstroemeria 
peregrina alba ; and a species of Hunnemannia, a tender plant which when 
treated as a half-hardy annual does well outdoors. 
Nuttallia cerasiformis Fruiting. — Mr. Bowles showed fruits of Nuttallia from 
his garden. Most trees and shrubs of spring-flowering habit appear to be fruiting 
freely this year. 
Curious Sport in Delphinium. — Mr. Berkley, of Redgate Hall, Wolsingham, 
Co. Durham, sent leaves from a Hybrid Delphinium in his garden, one branch 
of which, while bearing normal flowers, differed from the others in having entire 
leaves similar in form to those of Clematis integrifolia. 
Blackthorn Growing on Apple Bark. — Sir Harry Veitch sent a piece of Apple 
bark from which a Blackthorn, Prunus spinosa, was growing much in the same 
way as does Misletoe. Mr. Elwes mentioned the case of a Hawthorn which 
was growing from the branch of a Scots Fir, apparently, as in the Blackthorn 
shown, rooting into the branch itself. 
Sport in Diervilla. — Mr. John Grimes sent from his garden at Cardiff branches 
of Diervilla rosea in which, instead of the normal opposite decussate arrangement 
of leaves in the upper part of the shoots, the leaves were in whorls of three. 
This had first occurred in 191 5. 
Scientific Committee, August 14, 1917. 
Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, and six members 
present. 
The late Mr. C. T. Druery, V.M.H. — Mr. Bowles referred to the loss the 
Committee had sustained in the death of Mr. C. T. Druery, who had for many 
years been a member of tbr Committee. It was unanimously agreed that a vote 
of condolence be sent to i s relatives, with an expression of the Committee's 
appreciation of the work Mr. Druery had done in furthering a knowledge of our 
native Ferns and in the discovery of apospory. 
Various Plants. — Mr. H. J. Elwes, F.R.S., exhibited a number of plants from 
his garden, including Allium macranthum, a species which he had collected 
thirty-six years before in Sikkim ; A . Wallichianum, an almost stoloniferous 
species with a singularly compressed and winged stem, also from Sikkim * 
a woolly species of Delphinium from Kashmir ; Zephyranthes Candida major ; a 
species of Habranthus from the Argentine with a jointed bulb ; Gladiolus Papilio, 
and others. 
Potato Black-leg. — Mr. J. W. Odell showed specimens of Potatos affected by 
the bacterial disease called black-leg, which seems to be rather more prevalent 
than usual this year. The most marked symptom is the presence of dark patches 
in the vascular bundles when they are cut across near the base of the stem owing to 
the vessels being filled with bacteria. Such plants should be lifted at once and 
their produce should not be used for seed next season. 
Ants and Lily Flowers. — Mr. Bowles showed buds of Lilium sulphureum from 
Mr. Fletcher, of Aldwick Manor, Bognor, which had been damaged by ants in 
the same way as had those which came from Norwich recently. A further 
communication concerning the latter from Dr. C. A. P. Osburne, from whose 
garden they came, pointed out that the buds attacked in many cases failed to 
