SCIENTIFIC COMMITTEE. 
XXX vii 
in Spring 191 7. Only the seeds obtained from P. Juliae as the female parent 
were fertile. Sixty-eight seeds were sown, of which twenty-six germinated ; of 
these twenty flowered for the first time in 1919. The foliage in all cases shows 
the characters of both parents (petiolate and rounded, P. Juliae ; puckered, P. 
elatior) . The inflorescence was of the P. Juliae type in ten plants, and of the 
P. elatior type in the other ten. While all the plants of the P. Juliae type had 
pink flowers, those of the P. elatior type had yellow inflorescence in six cases and 
pink in four cases. Seedlings of the F2 generation are being grown on. The 
plant shown is one of the early flowering Fi generation, showing flowers of P. 
Juliae character. (Plants in the open have been in flower since December.) The 
only known crosses of P. Juliae x elatior seem to be chance seedUngs found at 
Kew, which have the inflorescence of P. elatior. 
Snowdrop Seedlings. — Mrs. R. O. Backhouse sent flowers of seedling snowdrops 
illustrating the second generation of the cross G. plicatus x G. nivalis. The 
flowers were exceedingly fine and presented great variation, some being like fine 
examples of G. Elwesii, and others of the nivalis or plicatus type, while one 
approached G. Melvillei. 
Early-flowering Crocus vernus. — Mrs. Backhouse also sent seedlings of Dutch 
Crocuses selected for earUness, and now in full flower. 
Scientific Committee, February 24, 1920. 
Mr. E. A. Bowles, M.A., in the Chair, seven members, and Mr. Jardine, visitor, 
present. 
Comparison of Juglans and Pierocarya Nuts. — Mr. J. Eraser showed specimens 
in illustration of remarks upon the development of the seeds of Juglans and 
Pterocarya and compared the two seeds. 
Narcissus eelworm. — Mr. Jardine exhibited a series of seedling plants, some of 
v/hich had been attacked by the Narcissus eelworm. He had watered the soil 
with a solution of one part of corrosive sublimate in 3,000 of water, afterwards 
applying nitrate of soda. The plants had grown away vigorously subsequently, 
and Mr, Jardine believed the eel worms to be destroyed. The Committee desired 
to see the bulbs later on, since the extent of the attack is not readily seen in its 
early stages in the leaves at this season of the year. 
Types of Black Currants. — Miss Bunyard showed a series of drawings of black 
currants to illustrate the various types met with in that species. The Committee 
thanked Miss Bunyard and complimented her upon their clearness and excellence. 
Various plants. — Mr. G. W. W. Blathwayt sent a number of flowers from the 
open garden at the Cottage, Porlock Weir, Somerset, including Acacia dealhata, 
A. falcata, Coronilla valentina, Daphne odora, and Leptospermum scoparium. A 
vote of thanks was accorded Mr. Blathwayt. 
Bulbous plants. — Mrs. Backhouse sent a further series of Snowdrop seedlings 
and Chionoscillas with the parents Scilla bifolia and Chionodoxa sardensis. 
Scientific Committee, March 9, 1920. 
Mr. E. A. Bowles, M.A., in the Chair, seven members, and Messrs. Crane, 
Jardine, and Rev. J. Jacob, visitors, present. 
Primula crosses. — Messrs. Baker of Wolverhampton showed a cross between 
Primula acaulis and P. Juliae with dark purpHsh-red flowers and leaves like those 
of Primula Juliae, and also Primula Juliae x P. elatior with pinkish flowers, very 
similar to the form shown by Dr. Rosenheim a few meetings since. 
Variegation of stem in Freesia. — Rev. J. Jacob showed a variety of Freesia 
with orange flowers, the lower part of the stem of which showed alternating bands 
of darker and paler green. These were deferred for further examination. 
Pruning of seedling fruits. — Mr. A. Worsley gave an account of his 
observations upon the growth of seedling fruits of various kinds, including 
apples, pears, plums, peaches, and apricots, and remarked upon methods of prun- 
ing such seedling trees and upon the characteristics of certain seedling fruits as 
compared with their parents. 
Veltheimia viridifolia. — Mr. Blaythwayt of Porlock sent a specimen of this 
interesting Cape bulb. It is nearly "hardy but not quite, frost being fatal to it. 
