SCIENTIFIC COMMITTEE. 



ccxxvii 



Scientific Committee, November 18, 1913. 

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



members present. 



Chrysanthemum-Carnation Graft. — The exhibitor of the flowers 

 from this alleged graft now sent the plants from which they were 

 taken, and careful examination of the lower part of the plant failed 

 to reveal the least trace of grafting, while from the base of the stem 

 from which the roots were derived a sucker was developing, clearly 

 belonging to the Chrysanthemum. It seems evident that, unknown 

 to the sender, the scion used had rooted and produced a Chrysanthemum 

 plant, not perhaps exactly like the original plant, for sporting may 

 occur, and frequently does, while colour varies in shade at least, 

 according to the conditions under which it is produced. 



Pelargonium Sporting. — Mr. A. Worsley showed Pelargonium 

 ' Firedragon 1 with a large flowered double sport from it. 



Lycoris straminea, &c. — Mr. H. J. Elwes, F.R.S., showed a reputed 

 hybrid Lycoris from a garden in Amoy, but which Mr. Worsley recog- 

 nized as Lycoris straminea, a not very well characterized species allied 

 to Lycoris aurea. Mr. Elwes showed also a three-flowered Cypri- 

 pedium hybrid, C. concolor x C. superbiens = C. X Arnoldianum. 



Hybrid Pelargoniums. — Mr. J. Fraser, F.L.S., continued his remarks 

 upon the history of Pelargonium hybrids, dealing with the forms 

 of P. Radala and P. denticulatum. 



Catasetum macrocarpum. — Mr. R. A. Rolfe, A.L.S., exhibited, from 

 the collection of Mr. G. Rae Fraser, Letchmore Heath, Herts, an 

 inflorescence of male flowers of Catasetum macrocarpum. Female 

 flowers of the same plant have twice been shown before the Committee, 

 in October 1910 and November 191 1 respectively. In the interval 

 the plant made two futile attempts to flower, but this year it has 

 produced the male inflorescences shown, thus enabling the species 

 to be identified with certainty. Both inflorescences are being preserved 

 at Kew, and the plant is now being presented to the collection there, 

 Mr. Fraser having another good plant. 



Cypripedium insigne with three Lips. — Mr. Rolfe also exhibited 

 from the collection of Mr. Albert Pam, Wormley Bury, Broxbourne, 

 a twin-flowered scape of Cypripedium insigne, in which the upper 

 flower was normal, but the lower had three lips, representing the 

 condition of the well-known variety ' Oddity.' In this case the two 

 lateral sepals were developed separately and diverge laterally, and the 

 dorsal is reduced in breadth, while the petals are metamorphosed into 

 lips, which clasp the normal Hp. 



Scientific Committee, December 2, 1913. 

 Mr. E. A. Bowles in the Chair, and thirteen members present. 

 Potatos diseased. — Dr. A. J. Voelcker showed examples of Potatos 

 with brown discoloration just beneath the skin, and a soft rot spreading 

 therefrom into the tuber. The tubers had been grown at Woburn 



