Jury 1910.) BOTANICAL SOCIETY OF EDINBURGH 91 
SomME FurTHER MossES AND HEPATICS FROM THE ISLE 
oF May. By Wittiam Evans, F.R.S.E. 
Since the publication of my list of Bryophytes from the 
Isle of May in the Transactions of the Society two years 
ago (vol. xxili., part iv., pp. 348-351), I have paid several 
further visits to the island and succeeded in finding other 
seventeen mosses and two Hepatics. These are :— 
Polytrichum piliferum, Schreb—On 17th June 1909 
Polytricha were met with in some abundance on wind- 
swept rocky knolls near the lighthouse. Capsules were 
present though not plentiful. Besides examples referable 
to P. juniperinum, there were others with the long hoary 
arista characteristic of P. piliferwm which Mr. Dixon says 
they undoubtedly are. 
Ceratodon purpureus (L.), Brid.—A few patches, bearing 
old capsules, on old cinder heaps near the lighthouse, 
September 1910. 
Pottia Heim (Hedw.), Fiirnr.—Sparingly, with ripe 
capsules, at side of path, June 1909. 
P. Wilsoni (Hook.), B. and S., sub-sp. asperula, Mitt— 
Several patches bearing abundance of capsules, some of 
them already ripe, were found on 23rd September 1910, 
where a little soil had collected on the rocks at the south- 
east corner of the island.' 
Tortula muralis (L.), Hedw.—A little on rock at the 
lighthouse, September ; fruit scarce. 
Barbula rubella (Hoftm.), Mitt—Common on old track, 
June 1909; barren. 
Funaria hygrometrica (1), Sibth—On the path near 
the lighthouse, common and fruiting freely, June 1909; 
also on old cinder heaps, September 1910. 
1 Regarding this moss—perhaps the most interesting I have found on 
the island—Mr. Dixon writes me as follows: “Your Pottia” (which I 
sent to him as P. Wilsonz) “is rather puzzling ; it is quite easy to run it 
down by the key to P. asperula, for it has the larger cells of that as 
compared with P. Wilsont, and quinquefarious leaves ; but then the 
capsule is more elongate, rather. The rough calyptra seems to place it 
without doubt under P. Wilsont or P. asperula, and the two are very 
close to one another, scarcely, I think, separable. I do not think you can 
be very far wrong in calling it P. asperula, in spite of the fact that that 
has been only found in the south hitherto.” 
