SCIENTIFIC COMMITTEE. 



xci 



cross, since it was between flowers belonging to two distinct sections of the genus. 

 These were all sterile. 



Narcissus Bulbocodiitm X N . ' Emperor.' — Mr. Marsden Jones also showed 

 photographs of a hybrid raised between Narcissus Bulbocodium conspicuus and 

 Narcissus ' Emperor.' The plant had leaves seven to nine inches long, and had 

 flowered for the first time this season five years after the cross had been made. 

 The strontium-yellow perianth measured i\ in. in diameter, and the lemon-chrome 

 trumpet in. X if in. The latter was much frilled and cut at the mouth, and 

 the perianth segments reflexed somewhat. 



Cheiranthus crosses. — Mr. Marsden Jones also brought flowers of a plant re- 

 sulting from the crossing of Cheiranthus alpinus and C. Allionii. Those in which 

 the seed parent was alpinus had green buds ; those where the seed parent was 

 Allionii were coloured chestnut. Some flowers showed segregation of the lemon 

 yellow from the orange by flecks and flakes of the former colour in the petals, 

 and in one case flowers of both shades in the same plant. 



Mr. Arkwright also brought flowers of C. Allionii $ X alpinus with chestnut- 

 coloured buds. The flowers of this cross were somewhat smaller than in Mr. 

 Marsden Jones's specimens. Neither was fertile, but both are easily raised from 

 cuttings. A Certificate of Appreciation was unanimously recommended to Mr. 

 Marsden Jones. 



Prunus Padus. — Mr. Fraser brought specimens of the long-racemed form of 

 Prunus Padus, which he said he had not found wild outside gardens in Surrey, 

 although the short-racemed form occurred in that county. 



Scientific Committee, June 17, 1919. 

 Messrs. E. A. Bowles, M.A., in the Chair, and four members present. 



Arabis glabra. — Mr. Marsden Jones sent a specimen of A. glabra from Tilston, 

 Cheshire, a new locality for this plant. 



Hybrid Narcissus. — He also sent photographs of the bulbs of N. Bulbocodium 

 X A T . ' Emperor,' of which other photographs were shown at the last meeting. 



Foliar sepals in Rose. — Mr. C. F. Pratt, of Acton, sent a rose in which the 

 sepals had grown out almost to the size of foliage leaves. 



Primula pulverulenla. — Miss Norton, of Dolcorsllwyn Hall, Cemmaes, sent a 

 specimen of P. pulvcrulenta with the note that " Three-years-old plants have 

 about fifteen flower spikes averaging three feet in height, the best half-dozen of 

 which grew to about four feet in height." 



Plants causing irritation. — Mr. E. M. Holmes mentioned a case of skin irrita- 

 tion caused by handling the Giant Cow Parsnip, Heracleum giganteum. Mr. 

 Bowles also referred to cases of severe skin irritation brought about by handling 

 Rhus vernicifera. 



Variegation of Rose Leaf. — Mr. Holmes showed an interesting example of 

 variegation in the Rose in which one half of a foliage leaf was yellow, the other 

 half green. 



Scientific Committee, July i, iqiq- 



Mr. E. A. Bowles, M.A., V.M.H., in the Chair, five members present : Prof. 



Lyttel, visitor. 



Elm varieties. — Mr. Fraser showed specimens of elms from various localities, 

 commenting upon their characteristics, including Ulmus stricta, from Mickleham 

 (with very variable foliage), U. stricta Wheatleyi, the Jersey elm (which will bear 

 trimming), and U. minor, Goodyear' s elm. 



Eremuri. — Mr. H. J. Elwes showed spikes of a white seedling of Eremurus 

 Bungei and a congested form with orange flowers almost sessile upon the rachis. 

 A similarly congested form had occurred among the early-flowering seedlings of 

 E. himalaicus. 



Cotyledon Pestalozzae. — Mr. Bowles showed a plant of this form of C. liba- 

 noticus brought to the meeting by Mr. G. Reuthe. It is almost hardy. 



Primula Littoniana malformed. — Mr. Magor sent from St. Tudy some spikes 

 of P. Littoniana with bifurcate tips to the inflorescence. It had the same 

 peculiarity on three spikes on one plant. 



Gall on Willow. — Mr. Holmes showed some young galls on a willow from 

 Kendon, similar to the large tassel galls several times shown before the Committee. 



