99 



Ravine (C. J.); Vid: Mornefjæld al soiiie 450 m. (!); Ost.: ravine near 

 Selletræ (!). 



278. A. spinulosum (iMiill.) Sw., subsp. dilatatum (HolTm.) Sw. 



Found here and tliere in siniilar piaces to A. Filix mas; noticed on 

 all the islands which have been visited, but only in low-lying districts. 



All the specimens investigated belong to the subspecies dilalaliim, 

 and 1 do not think that the main species occurs in the Færoes. 



279. Asplenium Adiantum nigrum L. «, nigrum Heufl. 



A few si)eciniens only found on Ost.: clefts ol" rock on Ostnæs 

 (Næs-Reuk) (!). 



280. A. Trichomanes L. 



Found together with the above, and in the same way a few sjjc- 

 cimens only. Landt reports it from this locality, but it was not re- 

 discovered before in 1897. 



281. Athyrium Filix foemina (L.) Roth. 



Found here and there in similar piaces to Asp. Filix mas and like 

 the latter only in the lower districts. 



282. Blechnum Spicant (L.) With. 



Common on all the istands mostly on slopes and rock-ledges. It 

 grows at high attitudes, but not on the highest hill-plateaux; \ve noticed 

 it up to some 600 m. (Kuno). 



The specimens occurring on the hills and on dry slopes are small 

 and have imbricated pinnæ on the barren fronds (f. imbricata Rostr. 

 p. 71); the robust forms from rock-ledges and ravines are a contrast to 

 it; they sometimes attain to a length of about 70 cm. 



As previously mentioned (Ostenf. II p. 17) specimens are found with 

 fronds in a transitional state between fertile and barren fronds. 



283. Cystopteris fragilis (L.) Brnh. 



Common in clefts of rock and in similar shady piaces on all the 

 Islands in low-lying regions as well as at high altitudes. 



284. Polypodium vulgare L. 



Found here and there on rocky ledges and on isolated rocks, but 

 not at high altitudes. Specimens mostly small. 



Pteridiiim aquilinum is reported I)}' Melvill, but it is doubtless a coufusion 

 with Shetland, where it grows. Hornemans statement of AUosuriis crispiis is 

 equally improbable. 



Order LIX. SELAGINELLACEAE. 



285. Selaginella selaginoides (L.) Link. 



Common everywhere in not too wet localities both in the lower 

 districts and on the hill-plateaux. 



