244 TRANSACTIONS OF THE [Sess. lxxviii. 



becoming a little less near base ; crowds of stereids every- 

 where rendering bulging cells occasionally obscure or even 

 opaque. No undulating fusiform cells seen, such as prevail 

 nearly throughout in C. atrovirens. Near Plockton in 

 several localities, 1913. As a memento of my friend the 

 Rev. John Fergusson of Fern near Brechin, an enthusiastic 

 and successful bryologist. 



Campylvpus cremdatus, n. sp. In large close tufts of a 

 green or pale green above, a deep brownish-red below ; 

 stems from 1 to 2 inches long, upright, mostly simple, 

 occasionally emitting short branches ; leaves somewhat 

 expanded at base, lanceolate, longly and slenderly acuminate, 

 hairless, alar spaces large hollow, bulging somewhat beyond 

 margin, defined from the cells above by a well-marked 

 line which slopes upwards and outwards ; cells very large, 

 bluntly oblong with pale, thickish, opaque walls, "06-"09 

 by -022-04 mm., cells just above the alae large, oblong, 

 close, granular with thick walls, -05-07 by -015-02 mm., 

 smaller upwards ; outwards such cells in eight to ten per- 

 pendicular rows, oblong as well as hyaline with thin walls, 

 becoming narrower and sloping upwards and outwards until 

 they end in a single marginal row ; above this second space 

 cells throughout are bluntly rhomboid, granular, large at first 

 about "03 by 009 mm., lessening upwards into the minute 

 oval or subquadrate cells to apex ; nerve strong, nearly 

 half the breadth of base, tapering and scarcely excurrent, 

 but very prominent behind, while apex proper is strongly 

 toothed and shows, besides, two or three teeth on nerve 

 behind near apex. A thin section of nerve shows an 

 anterior row of cells from - 006-'01 mm. near base ; second 

 row from -007-013 mm. below ; no other row manifest 

 behind owing to this space being crammed with stereids 

 to such an extent that no direct light can be transmitted, 

 accordingly the posterior surface of nerve appears smooth 

 except near apex where minute bulgings only perceptible. 

 The whole section of this nerve is darker to transmitted 

 light than any I have ever seen. Near Plockton, Ross-shire, 

 1913. 



This moss differs from C. Fergussoni in the absence of 

 hair-points and bulbous bases to the leaves, nerve also 

 scarcely reaches apex, or, if so, is only shortly excurrent. 



