428 TRANSACTIONS OF THE [Sess. lxxix. 



bend next capsule dark-red ; capsule often nearly pendulous 

 owing to the wide bend of seta, long, straight, cylindrical 

 or slightly broader below, brown, operculum concolorous also 

 slender, upright, long, more than half the length of capsule. 

 This moss, although nearly ripe, is too young to show 

 peristome, and yet the columella within capsule is fairly 

 well defined throughout and is also slender. On earth 

 covering rocks in the old, probably primeval, forest of 

 Duncraig near Plockton. 



As already stated, there are several peculiarities in this 

 moss, but there are two that stand out more prominently, 

 viz. the areolation which approaches in several respects 

 that of a section of Rhacomitrium while its external and 

 more obvious appearance is otherwise quite at variance 

 with any of the species of that genus. The seta is also 

 curiously bent or rather geniculate below the apothecium, 

 not unlike that of Campylostelium. I am so impressed with 

 these differences that I am inclined, even in the absence 

 of the peristome, to put it under a new genus and call it 

 Limneria viridula (gen. nov.). 



Another curious and beautiful moss has been under 

 observation for several years. I have waited in expecta- 

 tion of rinding it in fruit, but in vain. It grows in several 

 places on the west coast of Scotland, but most luxurianti} 7 

 near the base of the famous Duncraig, forming the highest 

 and most precipitous rocks of their kind in Great Britain. 

 It possesses characters in common with three genera, viz. 

 Pohlia, Bryum, and Mnium. Meanwhile I have inserted 

 it under Bryum. I have no scruples, as I have had in other 

 instances, in describing it in a barren condition, as the 

 external characters are so obvious and well marked as to 

 render it easily discernible even in the field. 



Bryum intortulum, n. sp. — In rather extended lax tufts 

 of a bright green colour above, abruptly showing below, at 

 first sight, merely dense masses of tomentum of a beautiful 

 port- wine colour, covering and almost concealing the rest of 

 the plant ; stems slender, upright, about an inch and a half 

 long, in other instances, with male inflorescence alone, twice 

 this length, pale at first afterwards red, emitting nearly at 

 right angles, rather frequently, short branches ; leaves laxty 

 disposed around the stems, long, spreading widely in a wet 



