154 



190. M. tenuipostris (Hook., Taj'l.) Lindb., Didymodon cyliii- 



dricus Br. eur. 



B., Nw. (Atl., suba.). — Fær. , vcry rare. In nioist, sliady ])laccs 

 among larger stones and iii clefts, bclow 100 ni. Only Ijarrcn. Sjd.: 

 Shore of Fainienvatn (!). Ost.: Gotegjov (!). 



191. M. litoralis (Mitt.) Braithw., Trichostomum liloiale Mitt., 



?Tr. miicronatulum Card. 



B., I., Nw. (Atl.). — Fær., common. On the ground among stenes 

 and rocks, especially by streams, from the sea-shore to ab. 500 m. 

 Abnndant, but always barren. First discovered b}' Sm. Sy ti.; Sando; 

 V a a g 6 ; Myggenæs; S t r. ; Ost.; K a i s 6 ; B o r ti o. 



Very variable in size and colour, lengtb of the leave.s and espe- 

 cially the form of their point, which is often botli obtuse and 

 acuminate in the same plant. The M. litoralis, indeed, appears to 

 be only an Atlantic variety or subspecies of M. brachijdontia. Short 

 leaved Færoese specimens quite agree with the descriplion and 

 figure of Trichostomum mncronatnliim Cardol (Mosses of the Azores 

 and of Madeira in Eighth annual report of the Missouri Bolanical 

 Garden, 1897). 



192. M. brachydontia (Bruch.) Lindb., Trichostomum mulabile 



Bruch. 



B. (S w eden). (\v. c). — Fæ^r., very rare. On moist ground. Vaago: 

 Midvaag, barren (!). 



Leaf-margins of the former species as well as of this single 



specimen of M. brachijdontia are, where the pellucid and the opake 



parts meet, more or less denliculate in the same manner as in 



Trichostomum mncronatnliim. This is not the case with specimens 



of M. brachijdontia from Gotland in Sweden (gathered by 



Zetter stedt and K. Johansen), which have the margins (juite 



entire, but agrees with the Færoese M. brachijdontia in having 



elongato-lanceolate, acuminate leaves. 



193. M. aeruginosa (Sm.) Lindb., Gynniostomum rupestre Schleich. 

 B., I., Nw. (c, suba). — Fær., very rare. Crevices of rocks in damp, 



shady piaces, below 150 m. Syd.: Near Trangisvaag, barren (!). Str. : 

 Gjanoregjov, fr. (J. H.). Bord o: Hojetjæld, barren (Sm.). 



194. M. rutilans (Hedw.) Lindb., Weissia rutilans Lindb., Limpr. 



B. , Nw. (w. c). — Fær., frequent. On the ground in lower paris 

 of the isles. Always fr. Sj'd.: Lopra; Vaag; Famien; Ordevig; below 

 Ornefjæld; Frodebo; Præstefjæld (!). Sa n do: Tindetjæld; at Sandsvatn (!). 

 Vaago: Midvaag (!). Myggenæs (!). Ost.: Solmunde; Stolafjæld; Fjde (!). 

 Bord 6 : Gra verdal (!). 



