NEW AND RARE MOSSES FROM THE WEST OF SCOTLAND 171 



from .03 -.09 mm. The leaves besides are very fragile, scarcely 

 an entire apex to be found except amongst the apical leaves 

 or those recently formed. This moss was named by Lorentz 

 at a later date M. tortuosa^ V2.r. fragili folia. It is, however, 

 a species proper. The tufts of this moss are dense, but the 

 stems are short, varying in length from a quarter to half an 

 inch long, and almost always fastigiato-ramose above, while 

 the whole plant presents a dull, non-glistening aspect, quite 

 a contrast in this respect to the others. As I have already 

 stated, it grows often in close relationships to the former, 

 but preserves its peculiarities intact. 



Another moss under this section was also discovered 

 near Onich in fine fruit, viz. M. inclinata (Hedw.), the first 

 fertile specimen gathered in this country. It is especially 

 known by its bent capsule, which besides is nearly twice the 

 breadth near the base that it shows near the summit. Besides 

 the two or three stations already known in Great Britain, 

 I have to record another from Craig Challeach, Killin. 



In connection with mosses of this tribe, I have to state 

 that M, aggregata (Strn.), discovered near Tarbert in Harris, 

 is in all likelihood merely a curious form of M. fragilis^ 

 where the margin is rendered entire and smooth by the 

 extension upwards to apex of a single marginal row of 

 hyaline cells from the basal areolation, I have M. fragilis 

 from Ben Lawers, where it is plentiful, showing at times this 

 marginal peculiarity, viz. extending far up the leaf, although 

 in no one instance actually reaching the summit. 



This gives another illustration of the curious relation- 

 ships of mosses of the west coast of Scotland more especi- 

 ally, to those on the eastern shores of Labrador, where indeed 

 M. fragilis (Drum.) was first detected by Drummond himself 



In addition to the mosses to which reference has already 

 been made, I have to record two others under a different 

 section of the same genus, of which M. brachydontia may be 

 said to be the type, and where the acumen is nearly identical 

 in structure with the others. 



Mollia intumescens, n.sp. — In large, very dense, generally 

 convex tufts, as much occasionally as i foot in diameter, of 

 a bright green colour above, with a narrow belt just beneath 

 of a pale yellow, the rest below of a dingy, dark or dusky 



