xxviii PEOCEEDINGS OF THE ROYAI> HORTICULTURAL SOCIETY. 
Scientific Committee, March 28, 1899. 
H. J. Veitch, Esq., in the Chair, and three members present. 
Flo^c of Sap in a Sycamore (hiring Frost. — Mr. T. R. Bruce, The 
Old Garrsop, New Galloway, sent the following communication : — " I 
noticed icicles hanging on a newly cut branch during the whole of last 
week, and steadily increasing, although the mean temperature of the 
w^eek was only 30°. The mean temperature of March 24 was only 25°*7. 
The cut-branch would be about half-an-inch in diameter, and some 
pounds' weight of icicles, or pints of sap, have flowed out during the 
week, and it still continues to flow. The maximum and minimum 
temperatures were as follows :— 19th, 42°-5, 21° ; 20th, ■42°'5, 23° ; 21st, 
38°-5, 15° ; 22nd, 38°, 21°-5 ; 23rd, 37 -5, 21°-5 ; 24th, 40°, ll°-5 ; 25th, 
43°, 23°." 
Aberrant Forms of Narcissus. — Mrs. F. M. Cooper sent some flowers 
— partly fasciated, partly double, and with coherent ovaries, &c., not 
unusual sports under cultivation. 
Carnations and Chrysanthemicms attacked by Insects, &c. — Mr. Lees, 
of Trent Park, New Barnet, exhibited specimens of Pinks and Chrysan- 
themums, which were forwarded to Mr. McLachan and Mr. Michael for 
examination. 
Hybrid Narcissi. — With regard to the spontaneous hybrid sent to the 
meeting on March 14 by Rev. C. Wolley-Dod, Mr. Henslow stated that 
the pollen was quite shrivelled and probably useless, as Mr. Wolley-Dod 
had found to be the case with other hybrid Narcissi. He sent also a 
spontaneous hybrid between N. triandrus and the Daffodil. The pollen 
of this also proved quite effete. He also sent flowers of N. Johnstoni, a 
supposed species intermediate between N. triandrus and the Daffodil, but 
it resembled the latter much more closely than the one mentioned above, 
as the corona was almost exactly that of the Daffodil, but of a paler 
yellow. The pollen proved to be very bad, but still many grains were 
apparently quite perfect. Mr. Wolley-Dod says that "it is found in 
various forms, having established an independent existence over large 
areas of Portugal and N.W. Spain." He adds that it has never been 
known to seed. The variety sent is called " Queen of Spain," and is the 
most abundant. 
Scientific Committee, April 18, 1899. 
Dr. M. T. Masters in the Chair, and four members present. 
Alpine Auriculas, Mildewed. — A plant was received from Rev. C. 
Wolley-Dod infected by a fungus. It was forwarded to Dr. W. G. Smith 
for examination. 
Apple-icood, Diseased. — Some specimens received from Mr. Basham 
were also sent to Dr. Smith. 
Germination of Daphne MezereuvL—Mv. Elwes described some curious 
differences between the germination of some seeds of this shrub, in which 
the plumule grew up normally above ground ; while in others, from some 
unaccountable cause, it appeared to be arrested for a long period before 
appearing, although they sent down roots underground in the usual way. 
