374 THE JOURNAL OF BOTANY 
are almost cumin with pene of B. gemmiparum, but for the 
e 
acuminate. The large leaves, stout, longly cuspidate nerve, absence 
of bulbils, and plane or almost plane margins, distinguish it from 
any of the Erythrocarpa ee of this part of the world. 
Philonotis rigida Brid., as 
Polytrichum commune i, 
Thurdiwm tamariscinum B. & 8. A single stem amongst 
Sphagnum subnite 
ypnum oupressifor me L., forma. A pale green, tumid form, 
robust, closely pinnate ; leaves large but not wide, thin, not 
chlorophyllose, alar cells few, hyaline, rather small. Sterile. 
EXPLANATION OF PLATE reba ek is: 5. Bryum clavatulum, n. sp., lea 30. 
Fig. 6. Ditto, part of leaf apex, Fig ae Dicranella heteromatla, ate of 
stem showing axillary bulbils <n chizoid, a 
TORTULA ACIPHYLLA IN BRITAIN. 
By W. E. Nicuotson., 
(Puate 499, Fias. 1-4). 
WueEn botanizing among the fallen Sosa above Loch na 
Chat on ee Lawers in the early part of last June I came upon 
at eid leaves revealed the longly excurrent reddish points of the 
nerves of the leaves, and at once showed the plant to be Tortula 
aciphylla (B. & S.) Hart ; a moss widely distributed in the moun- 
tains of Central Europe, t the Pyrenees, and Scandinavia, and 
found also in North America, but not Ritharto recorded for 
Britain. 
T. actphylla may be distinguished from T. ruralis (L.) Ehrh., 
to which it is closely allied, by the more acuminate leaves, by the 
brighter ioe colour of the upper leaves, the more vinous red tin 
of t wer ones, and, above all, by the fact that the nerve is 
mon on t 
side of Ben Lawers, where “it is probahky often ssveploniced, 
dither as a sterile form of M. serratum or a small form of 
M. ee reset 
hlenberg, in his Flora Carpatorum principalium (Gottingen, 
1814), "weatad our moss as a variety (8 alpina) of air but most 
Ce eT ee 
etek 
SR Ce ak ean Tee ret aac, en ead 
