CCXXvi PEOCEEDINGrS OF THE EOYAL HOETICULTURAL SOCIETY. 



named Salix cinerea x repens, with forms of the supposed parents most 

 nearly like them. 



Snowdrop with elongated stem. — From Messrs. Barr came a bulb of 

 Snowdrop with the axis of the bulb elongated downwards, forming a 

 cylindrical tapering prolongation about § of an inch long, and showing the 

 anatomical characters of a stem. The form was a double-flowered one of 

 Mr. Allen's raising. 



Scientific Committee, October 12, 1909. 



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

 members present. 



Fasciation in Tropaeolum. — Mr. Odell showed a specimen of Tro- 

 paeolum tuberosum with a very broadly fasciated stem. He found that 

 when grown in heavy soil this plant very frequently showed fasciation. 



Eucalyptus with intumescence. — Mr. Worsley showed leaves of young 

 plants of Eucalyptus pulverulenta, having small wart-like growths upon 

 the surface. This condition somewhat resembles that shown by vines 

 at times, and is due to excess of moisture in the air preventing trans- 

 piration. 



Datura Stramonium. — Mr. Holmes, F.L.S., showed a plant of the 

 Thorn-apple with slightly pubescent foliage, which had been attacked by 

 aphides in great numbers, so that the fruit had, owing to their presence, 

 assumed a very unusual appearance. 



Spirally -twisted Gentian, dkc. — Mr. Chittenden showed a spirally- 

 twisted stem of Gentiana asclepiadea from Wisley, and bearing the 

 numerous leaves in a loose spiral round the stem. He also showed 

 regular (peloric) flowers from the apex of the stem of Pentstemon, 

 similar in character to those often formed in the peloric Foxglove. 

 These flowers usually had two or three ovaries, and twice or thrice the 

 usual number of stamens. 



Malformation in Bubus. — Mr. Fraser, F.L.S., referred to a specimen 

 of Bubus rhamnifolius which he had exhibited last year with a shortened 

 inflorescence, and which had died since. He showed further specimens 

 from other bushes, however, and remarked upon them as follows : — 

 (1) Bubus rhamnifolius : plants dying owing to some injury caused to 

 the roots. The flower branches or panicles are exceedingly short, and, 

 throwing out roots at the base or at the top bud in an endeavour to 

 form new stools there. (2) B. carpinifolius : in the same condition. 

 These conditions may possibly be due to the attack of nematode worms. 

 (3) B. nitidus var. opacus : flowering stems dying like those already 

 mentioned. The terminal flower-buds have been galled by Phytoptus sp. 

 and the flowers have been arrested in growth, while the sepals have 

 undergone phyllody. The short flowering branches have very much 

 reduced, reflexed leaves, the petioles of which are filled with starch 

 granules in excess, and the inflorescence in a condition to form new 

 rooting stools. (4) B. mucronatus var. nudicaulis with patches of dense 

 velvety hairs on the stems and leaves caused by Phytoptus sp. 



