Ixxiv PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



It follows that every light-axil plant must breed true to light axil, but 



1, breed true to dark axil 

 or 2, give 3 dark : 1 light 

 or 3, give 9 dark : 7 light 

 &c. &c. 



TropcEoJicm ivith Tivo Spurs. — Mr. Worsdell, F.L.S., said that several 

 theories had been brought forward as to the morphological value of the 

 spurs of TropcBolum. Some had regarded the spur as an outgrowth of 

 the axis of the flower, and the flower with two spurs had been regarded 

 as supporting this theory, since if the spur were an outgrowth of the 

 calyx a multiplication of spurs would apparently involve a splitting of 

 the calyx, which had not occurred in the case under investigation. 



Solanum Commersonii and its alleged Sports, — M. P. de Vilmorin, 

 who was heartily w^elcomed by the Chairman in the name of the Com- 

 mittee, contributed some remarks upon the alleged sport of Solanum 

 Com7nersonii, a matter which has already been brought before the Com- 

 mittee by Mr. Sutton and others. Mr. Sutton suggested that the Wisley 

 Sub- Committee should be requested to grow side by side for comparison 

 M. Labergerie's violet variety and 'Blue Giant,' which it so greatly 

 resembles. 



Uredo Polypodii on Cystopteris. — Professor Boulger showed a specimen 

 of this rust fungus from Matlock growing on Cystopteris fragilis. 



Galls on Gooseberry. — Mr. Saunders, F.L.S., showed some gall-like 

 growths from a gooseberry bush, the whole of the bushes in the garden 

 being similarly afiected. These growths were attributed by some members 

 to a PhytoptuSj but none was to be seen at this stage, and by others to 

 injury by frost, followed by a great production of callus. 



Beversion in Auricula. — Mr. Douglas, V.M.H., showed an Auricula 

 bearing yellow flowers with serrated edges, almost identical with figures 

 published 170 years ago of Primula Auricula in size, colour, and form of 

 flowers. It was an interesting example of atavism, since it was raised 

 from seed of a show type of Auricula having an even white edge and an 

 almost perfectly black ground. 



Insects eating Iris. — The grub of a moth which was found eating 

 Iris sihirica and I. Delavayi, but not other species, was sent by Mr. 

 G. Yeld, of York. Mr. Saunders took the specimen for further exami- 

 nation. 



Irises dying. — Through Mr. Lynch came specimens of Iris spniria 

 var. ' A. W. Tait,' from Rev. Rollo Meyer, of Ampthill, Beds, the stems 

 of which were rotting, the leaves being marked with pale spots ; other 

 species had been attacked, and where the ''German" Irises were the 

 victims the rhizome became affected as well as the lower part of the leaf. 

 Lime had been found to improve the plants greatly. Mr. Nicholson said 

 that some years ago at Kew many Irises were similarly affected, and the 

 trouble was then found to be due to the attacks of a bacterium, and lime 

 proved a good specific in that case also. 



Fungus Galls on Azalea. — Dr. Masters showed galls on the buds of 

 Azalea indica received from Bruges as large as filbert nuts in the husk, 

 and of a pale green or reddish colour, though otherwise similar to those 



