XX PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



grubs received from Mr. White, Wateringbury, Kent, but the 

 species was not readily determinable without being bred to the 

 imago stage. It was suggested that gas-lime should be used, as 

 for wire-worm, to destroy them. 



Pines, Diseased. — Specimens of Scotch Fir and of Abies 

 Nordmanniana were received from Mrs. Marshall, Skelwith 

 Fold, Ambleside, the former attacked by the Pine-beetle, the 

 latter by Chermes abietis. This insect has always proved to be 

 very fatal to this species of Abies, and the only suggestion that 

 could be made was to cut down the tree and burn all parts 

 attacked. With regard to the Pine-beetle, to encourage the 

 multiplication of insectivorous birds as far as possible might be 

 advantageous. 



Cypripediums with Fungus. — Mr. Douglas exhibited speci- 

 mens with the roots badly infested by a Mycelium. Mr. Veitch 

 at once recognised it as the result of a too damp atmosphere, 

 recording the fact that having on one occasion to make a 

 double roof, it caused so much damp that he lost many 

 Orchids from the same cause, but on improving the atmosphere 

 this completely prevented any recurrence of the fungus. 



Primula obconica 2 x si)iensis. — Mr. Shea showed a hybrid 

 raised between these species. The flowers were pink, showing 

 the extension of yellow from the throat, with curled petals, and 

 bearing a decided scent of sinensis. The calyx, however, was 

 entirely that of obconica. The general appearance was nearer 

 that of the female parent. Mr. Shea proposes to re-cross with 

 sinensis, and so intensify the features of the male parent. 



Tico-spathcd Arum.—k fine example of this very common 

 condition was received from Mr. Thomas Bennett, The Gardens, 

 Shavington Hall, Market Drayton. 



San Jose Scale. — The Rev. W. Wilks said that the Council 

 had sent a memorial upon the subject of this pest, Aspidiotus 

 jicrniciosus, to the Department of Agriculture. Mr. McLachlan 

 remarked that a discussion upon the subject, and its reported intro- 

 duction into Great Britain, took place at a recent meeting of the 

 Entomological Society. Mr. Pi. Xewstead, who has devoted 

 special attention to the Coccida?, stated that not even an expert 

 could with certainty identify this scale, or distinguish it from 

 amongst the upwards of thirty described species of Aspidiotus, 

 without the most careful microscopical examination. Any 



