XXX PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



• anterior sepals completely divided. They were referred to Mr. Craw- 

 shay for examination (see below). 



Scientific Committee, March 8, 1910. 



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

 fifteen members present. 



Scale on Alder. — Mr. Newstead, A.L.S., reported that the scale 

 insect on the stem of Alder shown from Mr. Lynch was Aspidiotns 

 salicis. 



Fungus on Saxifraga. — Mr. Chittenden, F.L.S., reported that he 

 had examined the Saxifraga longifolia sent by Mr. Farrer, and found 

 it to be attacked by the rust fungus, Puccinia Saxifragae. This fungus 

 attacks several species of Saxifrage, but appears to be rather uncommon 

 in Britain. 



Hyacinth bulhs failing. — Mr. Michael, F.L.S., reported that he had 

 failed to find any bulb mites on the Hyacinth bulbs submitted to him. 

 He thought the death of the roots had, in all probability, been caused 

 by excess of moisture soon after they were formed. 



Malformed Cypripediums. — Mr. L. Crawshay showed drawings 

 illustrating the malformations shown in the twin-flowered inflorescence 



Fig. 68. — Diagrams of abnormal flowers of Cypripediijm barbatum. 



of Cypripediwm harhatum from Lord Avebury exhibited at the last 

 meeting. He remarked that the two-flowered scape had branched about 

 the middle. The terminal flower (fig. 68, A) had a complete perianth 

 except the labellum, which was absent, its only indication being a 

 median streak in the anterior sepal. The column was formed of two 

 normal anthers and two staminodes, the stigmatic plate being absent and 

 its place occupied by the anterior staminode. The ovary contained two 

 placentas placed opposite to one another. The lateral flower (fig. 68, B) 

 was normal in every way except in the triinerous outer whorl of the 

 perianth, which showed reversion to the primitive type, the three 

 segments being divided to the base. The ovary contained only cne 

 placenta, placed anteriorly. 



