CCXxii PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



Sempervivum arboreum. — Mr. Langworthy sent from his garden at 

 Claygate an inflorescence of this Portuguese Sempervivum, with small 

 leaf rosettes at the apex of each of the branches of the inflorescence, 

 which had almost dried up. 



Solatium crispum. — He also sent a section of a branch of Solatium 

 crispum, measuring about 3J inches in diameter, cut from a plant 

 growing outdoors at Claygate, Surrey. 



Crocus pulchellus fasciated. — Mr. E. A. Bowles showed Crocus 

 pulchellus with two groups of perianth pieces, one containing six, the 

 other seven parts, arising from the top of a common tube. The stamens 

 were normal in number. 



Primula vincae flora. — A Botanical Certificate was unanimously 

 recommended to this beautiful species, shown by Prof. I. Bayley 

 Balfour from the Botanic Garden at Edinburgh. It was introduced 

 by Forrest, who collected the seed in Yunnan. Its solitary, oblique 

 flowers are i| to 2 inches in diameter, of a rich purplish violet, 

 and have the anterior stamens bent back, bringing the anthers near 

 together. Three other species, of which P. Elwesii is in cultivation 

 but has not yet flowered, share this character with P. vincaeflora, and 

 form a unique and very beautiful group in this family. The seed from 

 which the present plant was raised was collected in 191 1. 



Glassiness in Apples. — Specimens showing this peculiar appearance 

 of semi-transparency were shown. The trouble, which is apparently 

 of physiological origin, is very prevalent this year, and no cure is 

 known. 



Sweet Williams diseased. — Specimens badly attacked by Puccinia 

 arenariae came from Liphook. This fungus attacks Lychnis dioica 

 and several other wild plants, and no doubt spreads from these to 

 cultivated Sweet Williams. The attacked plants should be burned, 

 and the remainder sprayed with a rose-red solution of potassium 

 permanganate. 



Fasciated Leontopodium. — Mr. J. Edwards, of Welshpool, sent a 

 fasciated stem of Leontopodium alpinum from his garden. 



Blue-flowered Potato. — Mr. W. Cuthbertson sent a flower of potato 

 of a distinctly blue colour as opposed to the lilac or heliotrope tint 

 commonly seen. 



Scientific Committee, October 7, 1913. 



Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, with nine 

 members present, and C. R. Scrase-Dickins, visitor. 



Cycas rcvoluta. — Mr. E. M. Holmes, F.L.S., showed the ripe seed 

 of Cycas revoluia. It had been grown and ripened in England. 



Uncommon plants. — Mr. H. J. Elwes, F.R.S., showed a Hippeastrum 

 with green flowers, which, it had been suggested, was a hybrid between 

 Hymenocallis and a garden Hippeastrum, two genera which have 



