SCIENTIFIC COMMITTEE, AUGUST 2 AND 16. 



cxvii 



being produced in 1892. It was put into commerce by Messrs. Vilmorin 

 ni 1897. 



Seminal variation in Cam/pamda lactiflora. — Mr. Bowles showed 

 seedlings of Camipanula lactiflora having abnormally narrow leaves and 

 very narrow petals, the corolla being cut almost to the base. One had 

 blue flowers, and had been derived from a blue-flowering plant; the 

 other bore white flowers, and had occurred near a clump of the white 

 form. The variation was in the same direction as that seen in the 

 variety of G. rotundifolia, known as soldanellioides. 



Spiraea Aruncus. — Mr. Bowles also showed a specimen of Spiraea 

 Aruncus, bearing both staminate and hermaphrodite flowers. Up to 

 the present only the staminate form has been known in his garden. 



Scientific Committee, August 2, 1910. 



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



members present. 



Phlox sporting. — Mr. Douglas, V.M.H., showed flowers from the 

 plants shown on August 31 last year which until then had produced 

 white flowers, but were then flaked with lilac. These plants had been 

 carefully marked, and had this year produced flowers almost entirely 

 white, but with slight touches of lilac in them. The calyx was purple. 



Aberrations in Antirrliinum . — Mr. W. Hales showed a variety of 

 aberrations in the common Antirrliinum., consisting mostly of flowers 

 tending to become regular. In one case the terminal flower had become 

 completely peloric, and on the same shoot the normal corolla had at its 

 base an anterior outgrowth very like the palate in form and colouring. 



Gall on Willow. — Mr. Bowles showed examples of galls on willow 

 {Salix alba) from Enfield similar to those shown from the neighbour- 

 hood of Buckhurst Hill by Mr. Chittenden in October 1906. The galls 

 are apparently formed through the irritation set up by a mite (Eriophyes 

 salicis), causing the repeated branching of a shoot which produces small 

 and narrow, rather soft leaves, so that the whole mass measures up to 

 a foot in length and nine inches in diameter. The growth turns bright 

 red in autumn. 



Scientific Committee, August 16, 1910. 



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

 members present. 



Dimerous Iris. — Mr. Fawcett, B.Sc, F.L.S., sent a flower of Iris 

 Xiphium having all its parts in twos instead of threes. This type of 

 variation from the normal in Iris is fairly common, but is often confined 

 to one or two whorls instead of all four. The stem also bore a bud, 

 but in that the parts of the flower were in threes. 



Sporting in Carnations. — Mr. J. Douglas, V.M.H., called attention 

 to the variation in colour met with in Carnation "Ehoda," which, 



