234 ON ALLIOSPORA, A SUPPOSED NEW GENUS OF DEMATIEI. 
by later writers, including Dr. Braithwaite, to the rank of a variety 
of S. cuspidatum, which is no doubt its proper position. It is larger 
and more eet than any of th other forms of that variable 
and students of nt tribe may expect to meet with it fn similar 
situations; for on sending a specimen to Mr. Whitehead he at once 
identified it with suites which he had gathered before on Risley 
Moss, near ora but had not determined. These, however, 
are a trifle less robust, and might easily be passed as merely large 
plumosum. The Shropshire specimens are identical with those I 
have from N. America, where alone this Sphagnum had hitherto 
been foun 
Another of Sullivant’s figures represents a very similar plant, 
from California, called Sph. a this is treated by Dr. 
ioe as identical with the above, while Messrs. Rau & 
n their ge cs it the position of a distinct 
Sitio a have not seen this, and so have no opinion to give; 
the eine shows little difference. 
ON ALLIOSPORA, A SUPPOSED NEW GENUS OF 
DEMATIEI. 
By Greenwoop Pim, M.A., F.L.S. 
Harty in 1882 I observed a curious black mould on a decayin 
specimen at a meeting of the Dublin Microscopical Club, in whose 
Proceedings a note of it appears, under the _title of Alliospora 
being i 
of a long slender hypha, with very rare thickened Cals: 
is seated a small globose mig areolate on the surface ; from 
ares arise a great number of very much elongated basal cells, 
ich by mutual pressure athe) a solid layer outside the columella, 
dd nearly twice its diameter in a From the ends 
of these basidia, may so call them e the sporiferous 
threads, which appear to be in general ea Ee ser septate till just 
