42 
9, 1929. Very rare in Somerset. — H. S. Thompson. \ es. 
W. 0. Howarth. The species is separated from its allies by 
the very finely puberulous blades and sheaths of the lower 
leaves. — J. Fraser. 
Bromus pratensis Ehrh. = B. commutatus Schrad. Chertsey 
Mead, Surrey, June 15, 1929. — I. A. Williams. There seems 
so often to be confusion between various species of Bromus 
that I venture to send these specimens. Some of them are 
beginning to show the dark red colour which is typical of 
the species as it gets old and sometimes leads to its confusion 
with B. arvensis. B. pratensis is a very common grass in 
riverside meadows both at Chertsey and across the Thames 
in Middlesex. — I. A. Williams. Quite good. It is a mis- 
fortune that these brome-grasses fall to pieces as soon as their 
specific characters become well developed. — J. W. White. 
Bromus britannicus I. A. W. In a dry sandy pasture, 
Churt, Surrey. June 23, 1929. I. A. Williams. This 
grass, which I described in the Journal of Botany, 1929, p. 65, 
seems to be frequent in sandy fields (both arable and thin 
pasture) in S.W. Surrey. It will probably prove to have a 
very wide range in Britain. The plants are not always so 
small as the specimens which I now send, but these are quite 
typical, and just ripe enough for certain determination. For 
ease in seeing the character of the inner pale being shorter 
than the caryopsis, it would, however, have been better if 
the plants were 2 or 3 weeks older, for this character is most 
easily seen in plants which are in very ripe fruit and drop- 
ping to pieces. — I. A. Williams. Acceptable specimens of 
an interesting grass, which appears well to deserve the dis- 
tinction conferred on it. J. W. White. I am of opinion 
that this is simply a form of Bromus hordeaceus L. ; and intend 
to keep it under observation in garden conditions with a 
view to confirming this. — W. O. Howarth. 
Lepturus filiformis Trin. [A. 16]. Forming a dense carpet 
by the shore, Porchester, Hants. July 27, 1929. — J. E. 
Lousley. Yes. — W. 0. Howarth. 
Lastrea Thelypteris Bory. Ashcott peat-moor, Somerset, 
v. c. 6, July 20, 1929, during drought. It covers many 
acres in different parts of the moor, and grows under trees, 
especially Pines ; amidst bushes such as Myrica , Rhamnus 
Frangula, Salix and dwarf Birch ; and sometimes in coarse 
herbage usually mown in normal seasons. Owing to the long 
