92 
NOTES ON BRITISH DESMIDS. 
Staurastrum pseudofurcigexum, Reinsch. 
Is now recorded for the first time in the British Islands. 
Stauxastrum Sebaldi, Reinsch. var. 
The variety of this species figured (PI. 139, fig. 5) differs from 
the typical form in its longer arms, but not apparently in any other 
essential points. The species has been found in Ireland. 
Stauxastrum Pxingsheimii, Reinsch. 
Also found previously in Ireland, but not hitherto in Britain. 
Stauxastrum megacanthum, Lund. 
x\ppears to be entirely new to the British Islands. 
Stauxastrum paxadoxum, Meyen. var. B. longipes, Nordst. 
This peculiar variety also occurred at Capel Curig. 
Stauxastrum anatinum, Che. & Wills (Pi. 139, fig. 6). 
Segments in front view broadly fusiform; rough with prominent 
granules, which are truncate on the outer margin ; processes 
elongate, rough, terminated with minute spines. End view 
triradiate, processes elongate, rough, slightly and gradually 
concave, nodules at the centre truncate. 
Length *05 mm. Breadth, including the processes, *1 mm. 
Breadth at the sinus, *02 mm. Length of the processes, '025 mm. 
Allied to S. Sehaldi, but differs in the front view in the broadly 
fusiform segments, and the upward, rather than downward, direc- 
tion of the processes, hence, the third process is usually visible on 
one or both segments in the front view. 
Docidium nodosum, Bailey. (PI. 141, fig. 1). 
The occurrence of this extraordinary form for the second time 
in North Wales is noteworthy, the first being at Barmouth, where 
also it was found by Mr. A. W. Wills, in the year 1867. 
This enumeration is confined to the Capel Curig collection. We 
have notes on species from other localities during the past year, 
some of which are new to Britain, but these must be postponed 
until a succeeding number. 
LONDON CATALOGUE OF BRITISH MOSSES AND 
HEPATIC^ * 
Bryologists will be glad to learn that the Botanical Record Club 
has issued a second edition of this useful catalogue brought up to 
date. It is in two forms — one, printed on both sides of the paper, 
and one, printed on one side only. 
It is unnecessary for us to attempt any commendation, for a 
catalogue of this kind will commend itself, being, in fact, a neces- 
sity for all who are interested in British Bryology. It is neatly 
and clearly printed, and shows the comparative rarity or frequency 
of each species by means of a census indicating its distribution 
through the eighteen Watsonian Provinces of Great Britain. 
* London : D. Bogue, 3, St. Martin’s Place. 
