Wilson's notes on British muscology. 381 



Nant Frangon, N. Wales, which could not be satisfactorily 

 referred to any British described species, and it is probably 

 the species or variety now under consideration. 



27. Glyphomitrion Daviesii. — This has been found in 

 some plenty near Llanberis, at the foot of Snowden, by Mr 

 Valentine and Mr Rulf. 



28. Cinclidotus fontinaloides. — The upper portion of the 

 peristome is closely united to tlie columella, which, shrinking 

 downward as it dries, always causes a fracture of the teetli in 

 the mature capsule ; hence the peristome appears sliorter than 

 it really is; the operculum exhibits a spiral arrangement of 

 its cells, and the peristome partakes much of the nature of a 

 Tortilla. The fructification of this Moss can with difficulty be 

 called terminal. 



29. Trichostomum patens, ^.piliferum — Some muscologists 

 seem to have overlooked Dr Arnott's excellent remark in 

 the addenda to Hooker and Taylor's Muse. Brit,, and to 

 have regarded this Moss as T. funale, Schwaegr. Suppl. t. 

 3T. It may nevertheless be truly distinct from T. patens, 

 which has a very remarkable structure of the nerve of the 

 leaf, which has at the back two winged projections, not at all 

 visible in the variety now under consideration. This latter 

 Moss is indeed very closely allied to Grimmia trichophylla. 



30. Funaria jMuhlenbergii. — No one who has carefully ob- 

 served the prominent operculum, its scarcely reddened mar- 

 gin, the smooth border of the mouth of the capsule, and the 

 large rough seeds, thrice the diameter of those of -F. hygrome- 

 trica, would even think of uniting these two species. The 

 experiment of Mr James Drummond cannot by any means 

 be considered satisfactory; because it is as difficult to ensure 

 the absence of the seeds of so common a Moss as Funaria 

 hygrometrica, as it is to cultivate F. Muhlenbergii, in any but 

 a calcareous soil. F. hygrometrica may always be infallibly 

 distinguished from F. Muhlenbergii, by a distinctly corrugated 

 border surrounding the very oblique mouth of the peristome, 

 by the deeply coloured margin of the flattened operculumj^ 

 and by the large and very distinct annulus. 



