1 1 2 The Scottish Naturalist. 



Lolium L. 

 457- perenne L., B. Common. Probably introduced. 



Elymds L. 

 45 8. arenarius L. Hoy, Hoxa, B. Toftsness Sanday. Scapa. 

 Walls. D. <Si H. Holm. Local, and rather scarce. 



Nardus L. 



459. stricta L., B. Common. 



FILICES. 



Hymenophyllum Sm. 



460. unilaterale Willd., B. Hoy Hill and Meadow of the Kame, 



Hoy. Not recorded from other islands. 



Pteris L. 



461. aquilina L., B. Common. 



Lomaria Willd. 



462. Spicant Desv., B. Common. 



Asplenium L. 



^463. Ruta muraria L. Rousay. D. Gillies and D. Probably 

 rare and very local. 



464. Trichomanes L., B. Hoy, Evie, Rousay, Westray, D. ; Local; 



Harray, J.W.H.T. 



465. marinum L., B. Not uncommon. " St. Magnus Cathedral," 



D. Not known there now. 



466. Adiantum-nigrum L., Hoy, B. Rousay. Evie, D. Westray, 



Dr. H. H. Johnston. Rare and local. Harray, J.W.H.T. 



Athyrium Roth. 



467. Filix-fcemina Bernh, B. Common. 



SCOLOPENDRIUM Sw. 



468. vulgare Sm. " Rousay sparingly," D. " Extinct Rousay, 



Rocks inland, now extinct, Enhallow," H. 



Cystopteris Bernh. 



469. fragilis Bernh., B. a. and b. Hoy and Rousay. Local 



and scarce. 



Aspidium Sw. 



470. Lonchitis Sw. Hoy, rare D. One specimen. W. Evans, 



1870. Very rare; possibly now extinct. 



471. aculeatum Sw., B. 



b. lobatum. I have fronds from two stations in Hoy. 



Very local and rare. 



Nephrodium Rich. 



472. Filix-mas Rich., B. Rather scarce. 



c. Borreri, B. do. 



* For obvious reasons, the stations for the less common ferns are better 

 not given. — W. J. F. 



