SCIENTIFIC COMMITTEE, APEIL 28. 



xxxiii 



Propagation of Drosera. — Mr. Hales showed plants of Drosera hilaris 

 raised from root cuttings put in about five weeks ago. The plants had 

 each developed a number of leaves. 



Hybrid Orchids. — R. G. Thwaites, Esq., F.R.H.S., of Streatham Hill, 

 S.W., wrote in reference to the communications recently received by the 

 Committee concerning the crossing of albino orchids : — " The result of 

 crossing Dendrobium Wiganianum album (in which the peduncle is only 

 slightly coloured) with D. nobile virginale (which is white all through) 

 has been, in every instance, a coloured flower of the ordinary D. nobile 

 type ; whilst D. nobile virginale self-fertilised has in every instance 

 produced pure-white flowers, appearing to prove that D. Wiganianum 

 album is not a true albino. Again, when D. nobile virginale is crossed 

 with D. aureum in every instance the same result is obtained as from 

 crossing the ordinary D. nobile with D. aureum, namely, D. Ainsioorthii, 

 the flowers of which are full of colour." 



Gall-like Growths of Larch. — Mr. Massee, V.M.H., reported that the 

 gall-like growths on the larch shoot shown by Mr. Elwes at the last 

 meeting were really the scales of a female cone which had been separated 

 from one another by the growth of internodes. They had apparently 

 been early attacked by Thrips abietis. Seeds and seed scales were both 

 to be found in their axils. 



Seedling Ehn. — Mr. Chittenden showed a seedling of Ulmus glabra 

 from Terling, where they had occurred in abundance last season (see 

 " Kew Bulletin," 10, 1907, p. 404). This elm is abundant in many parts of 

 Essex, but only once before had he found a seedling, and that in his garden 

 at Chelmsford in 1903. U. campestris, of which this is probably a form, 

 is not known to seed in England, unless the seedlings recorded from the 

 King's College " Backs " should prove to be really those of that tree. 



Journal and Scientific Papers. — The motion on this subject adjourned 

 from the last meeting (p. xxxii) was again brought before the Committee 

 by Mr. Holmes, seconded by Mr. Massee, and, after discussion, carried, 

 four voting in its favour and none against. 



The motion was ordered to be sent to the Council. 



Scientific Committee, April 28, 1908. 



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

 members present. 



Daffodil Seedlings. — Rev. G. Engleheart, V.M.H., sent the following 

 communication concerning the white seedling daffodils shown by him : — 

 " During the past twenty years I have several times, in successive years, 

 cross-fertilised Narcissus ' M. J. Berkeley ' ? on a considerable scale in 

 order to obtain a race of early, coloured N. incomparabilis and in this 

 I have been successful. But in each set, when it reached the flowering 

 stage, there have appeared some of these white trumpets, virtually 

 ' M. J. Berkeley ' itself except in colour. There has always been also 

 a sprinkling of yellow trumpets, i.e., ' M. J. Berkeley ' itself, reproduced 

 from seed of a few flowers which escaped being totally disanthered, and the 

 vol. xxxiv. c 



