H 9 
The London Botanical Society. 
Dr. Rendle’s paper: I merely regard the petaloid calyx in flowers 
containing nectaries as being, for the reasons adduced, more primi¬ 
tive than the green calyx in flowers possessing a coloured corolla and 
in these latter only. It is, of course, more recent than the early 
wind-fertilised flowers. I regard the green calyx of the ordinary 
entomophilous flower of the Dicotyledons, &c., as having probably 
passed through the petaloid stage. 
The “ absence of definiteness in the limitation of distinct series ” 
amongst foliar organs arranged along a spiral line on the axis 
affords to my own mind a good piece of evidence for the common 
origin of all the said foliar organs, and this, I hold, must lie in the 
sporophylls. 
Finally, I would refer to Celakovsky’s works for more detailed 
illustration, by means of concrete examples, of the process of origin 
of the perianth of flowers. 
And I would add that where, as in the articles of Dr. Rendle 
and myself, the points of view radically differ, it seems unlikely that 
any amount of discussion will bring about an agreement. 
Yours, etc., 
W. C. WORSDELL. 
April 12th , 1903. 
THE LONDON BOTANICAL SOCIETY. 
T the meeting on Tuesday, March 17 th, Mr. S. Hastings shewed 
21 a long series of extremely successful habit-photographs of 
British Fungi, many of which were considerably magnified. 
The greater number were of Agarics and their allies, but there were 
also several Ascomycetes in the collection. Geaster and Nidularia 
(much magnified) were particularly beautiful examples of the 
photographer’s skill. It is to be hoped that Mr. Hastings may see 
his way to publish a set of these photographs, since they are some of 
the best we have seen and really good habit-pictures of plants are 
always valuable. 
Professor J. Reynolds Green gave a most interesting and lucid 
account of his recent work on the Germination of Fatty Seeds. The 
time is not yet ripe, however, to publish any details of the results. 
At the meeting on Tuesday, May 12 th, the Secretary, Professor 
Farmer, gave an account of the work he has been doing, in conjunc¬ 
tion with Mr. J. E. S. Moore and Miss Digby, on the cytological 
features connected with apogamy in fern-prothalli. It has been 
successfully shewn that the nucleus of one prothallus-cell passes 
through the cell-wall where it presumably fuses with the nucleus of the 
neighbouring cell, from which the apogamousgrowth originates. The 
number of chromosomes in the nuclei before fusion is roughly forty, 
