- 92 REVUE BRYOLOGIQUE 
fically, from E. verticillalum in the entire basal margin, the recur- 
ving of the upper margins, the shorter basal areolation, etc. The 
colour, narrow leaves, small, papillose upper cells, and the charac- 
ter of the basal areolation, will distinguish it from forms of Cera- 
lodon purpureus. Gyroweisia linealifolia Kindb. has plane margins 
and quite different, more elongate areolation, and is of quite dis- 
tinct habit. 
The only other moss to which it seems necessary to refer 1s 
Barbula lophacea (Brid.) Mitt. It is true that in its ordinary forms 
this moss is a totally different plant in every way ; but it exhibits, 
on the other hand, such remarkable deviations from the normal, 
that it seemed desirable to consider the possibility of our plant 
being a strongly marked variant. Mr Nicholson has gathered in 
_ Greece a form of B.lophacea which has many of the leaves narrowly 
acuminate, while the very remarkable var. lorrentium Loeske 
“has the nerve constantly excurrent in a long stout cuspidate 
point. Neither of these has the least resemblance to our plant, 
but it is conceivable that if a small, dense form varied in a parallel 
. manner to these two simultaneously it might produce a result 
somewhat similar to our plant. Apart, however, from other fea- 
tures — such as the calcareous incrustation which seems an 
almost inseparable character in B. tophacea, and the nerve section 
which is not quite identical — the upper areolation in our species 
is smaller, more quadrate, more obscure, less incrassate than I 
think is ever the case in B. {ophacea; and the habit is distinctly 
Weisioid, not that of a Barbula or Didymodon. Moreover, if our 
moss were an abnormal or strongly aberrant form, of either 
B. lophacea or any other species, one would expect it to show 
some marked variability; whereas one of its most pronounced 
features and one which weighed heavily with us in deciding to des- 
cribe it as new, is the almost absolute constancy and uniformity 
in both habit and structure, in all the material seen from both 
Baveno and Lugano. This marked stability is strongly against 
the supposition that it is an aberrant form. 
I shall be pleased to send specimens to any bryologist desi- 
_ ring to see it. 
Aplozia pusilla, nov. sp. 
Auctore 
C. JENSEN 
| Paroïca, SE. alta, simplex vel parce ramosa, gregaria vel ; 
æspites parvos formans, viridis, luteola vel partim plus minusve 
rubro-brunnes, dense > longeque | brunneolo radicellifer ; ue É 
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