ee cast) Pies nas Seco, 
1888. | BOTANICAL GAZETTE, 237 
dispersion of the seeds, as the cones open and close many 
times before all the seeds are sown, thus securing their 
transport in different directions by the varying winds. 
[The above abstract was read by the Secretary. No dis- 
cussion, | 
Some new facts in the life-history of Yucca and the Yucca moth: 
by Tuos. MEEHan- 
h 
Opening and the duration of the flowers, with notes on the 
ime and duration of the moisture exudation from the peri- 
anth. The cause of the sudden stoppage of the waste was 
discussed, and some remarkable facts in connection with 
ronuba yuccasella, observed by Dr. Riley, confirmed. The 
remarkable adaptation by which an insect is made to do the 
work of self-fertilization which the plant could just as well do 
section, Dr, Riley, replied to the paper. He restated the 
facts, which had been demonstrated conclusively, that Yucca 
ized Mr, Meehan’s conclusions as totally unjustifiable. a 
Day remarked that his plants of Yucca were self-sterile, Mt 
he had no hesitation in saying that they were functionally 
diecious, | : 
On the cause and significance of dichogamy in flowers: by 
HOs. MEEHAn. are 
The author repeated the announcement of his agp anf 
Made first through the Proc. Phil. Acad., that it ta 
5 the discussion which followed, Messrs. Day, Fenton 
ind Barnes wholly dissented from the conclusions : 
by the author, | 
; setors: by THOS. — 
Adaptation in the honeysuckle and insect visitors: by Tos. 
EEHAN, 
The author gave all the points in the a. le 
