t 44 
The London Botanical Society. 
to the astelic conditions of the lamina ; and he admits also that 
the limits between astely, schizostely and monostely can be only 
arbitrarily defined. 
This conception of the leaf the reviewer feels altogether unable 
to agree with; in his opinion the leaf must possess throughout the 
same fundamental structure as the stem ; space, however, will not 
permit of his enlarging upon this idea. 
The author’s conclusion with regard to Van Tieghem’s stelar 
theory is that in its essential features it may be retained unaltered, 
seeing that monostely is present in stems and roots, and astely in 
leaves, in practically the great majority of cases. 
In the opinion of the reviewer the book is the best general 
treatise on the stelar theory which has yet appeared. 
W.C.W. 
THE LONDON BOTANICAL SOCIETY. 
The June Meeting of this Society was held at the Royal 
College of Science on Tuesday, June 16 th, Dr. D. H. Scott in the 
chair. 
Miss Lorrain Smith exhibited and gave a short account of some 
interesting microscopic Fungi new to Britain. One of these had 
been found only once previously, in Silesia, before it turned up 
recently in the New Forest. The opinion was expressed in the 
discussion that such apparent anomalies of distribution were the 
result of ignorance, several analogous cases being cited. 
M iss Ethel Sargant communicated some preliminary observa¬ 
tions made by herself and Miss Agnes Robertson on the vascular 
tissue of the scutellum of the Maize, calling attention to some 
apparently undescribed and most interesting points in the structure 
of this organ. 
Dr, F. E. Fritsch exhibited three slides of Thames phyto¬ 
plankton, illustrating the differences between the plankton of a 
backwater and that of the main stream. 
R. Madley, Printer, 151, Whitfield Street, W. 
