3 ° 
Similar label. “ Is also D.fuscescens Turn. (N.B.—When two 
plants are sent of identical labelling it is always well to distinguish 
them by two numbers, or A., B , for future reference and identi¬ 
fication.”— II. N. D. 
D. scoparium var. spadiceum Boul. Wolfhole Crag, Raeburndale, 
W. Lancs., Oct. ’98. A. Wilson. 
D. montanmn iiedw. Crackley Wood, Kenilworth, Warwickshire. 
4/82. “ Very abundant in this wood, in 1882, but a few years after 
a railway cutting was made through this wood, and the moss dis¬ 
appeared; it occurs in other Warwickshire localities.”--]. E. Bagnall. 
D. asperulum Mitt. Rocks, Ballachulish, Argyleshire, 18 July, ’98. 
Binstead and Dixon. 
Fissidens polyphyllus Wils. Pont Aberglaslyn, Carnarvonshire. 
D. A. Jones, April, ’98.—Com E. C. Horrell. 
F. incurvus Starke. Clevelands, Reigate, 3/99 E. S. Salmon. 
Hothorpe Park, Northants, 8/98. H. P. Reader. 
Gri?nmia patens B. & S. Slioch, W. Ross.—E. S. Salmon, 8/96. 
G. arenaria Hampe. (1 curvula Bruch.) Roadside between 
Dolgelly and Barmouth, N. Wales, Aug. and Sept., 1898. 
T. Barker. “ The moss distributed under this name when seen 
in situ looked so unlike G. Do 7 iiana, that the close 'resemblance of 
their leaf-areolation under the microscope was a surprise and puzzle. 
A reference to Limpricht’s description of G. arenaria (Hampe) in 
Rabenhorst’s Kryptogamem Flora, &c., and to Schimper’s of G. 
curvula (Bruch.) in the Synopsis, and then to a specimen under the 
latter name sent out by Schimper left little doubt that the Welsh 
plant was the same as Hampe’s species. Dr. Braithwaite and Mr. 
Dixon agreed to the correctness of this, the former stating that the 
species was quite distinct from G. Donii , while the latter inclined 
to a different view of their relationship. The distinction between 
them seems to consist of an aggregate of small differences, and 
whether the one is a variety or sub-species of the other, or 
they are specifically distinct may perhaps remain a matter of opinion. 
‘ Lumpers ’ will dwell with most delight on the cell structure of the 
leaves, while ‘splitters’ will find a joy in noting the differences in 
the parts of the fruit. It may perhaps be useful to state here what 
appeared to me to be the cause of the different facies of the two 
mosses when seen in the field, (less noticeable in the herbarium,) 
in the Merioneth locality in dry weather, a difference also more 
striking, as both were growing in considerable abundance in close 
proximity. G. arenaria formed hoary tufts, the grey colour of the 
leaf points quite predominating over the green colour of the 
leaves, whereas in G. Doniana the dull gree?i colour of the leaves 
prevailed, and the tufts were usually smaller. Indeed, when G. 
arenaria found a suitable crevice in the stone it tended to grow into 
large so called ‘ mouse-like’ masses. The much greater hoariness 
of G. arenaria seemed due to the fact that the hair points of the 
leaves were longer and lay flat on the surface of the tuft, as if they 
had been smoothed with a brush, all pointing downwards, when as 
