2 



The next and more important contribiition to oiir knowledge 

 of the vegetation of the Færoes we owe to the well-knoAvn algo- 

 logist H. C. Lyngbye, who visited the Færoes in 1817. The results 

 of his investigations with regard to the Algæ were pubHshed in 

 his »Hydrophytologia Danica« and in Horneman's »Dansk Plante- 

 lære« (vol. I. Copenhagen 1821, vol. II. 1887). 



In 1821 W. C. Trevelyan spent 5 months in the Færoes, travers- 

 ing the islands partly in company v^åth the Danish geologist, 

 J. G. Forchhammer; but it was not until 1835 that he published 

 his notes on the flora of the Færoes based partly on his own and 

 partly on Lyngbye's collections. In these notes the number of 

 phanerogams and cryptogams is brought up to 573. 



In 1831 the well-known traveller and collector, Count F. C. /^ofce/? 

 of Aalholm made the tour of the islands; his diaries (June 24th — 

 Oct. 23rd) have not been published, but they are to be found in 

 the archives of his estate. (See Ostenfeld I. p. 149). 



Con tributions of a different order were made by Ch. Martins, 

 the naturalist of the Corvette »La Recherche«, which visited Thors- 

 havn 25th — 30th June 1839, whence he made shorter excursions 

 to Sando og Nolso. Besides an uncritical list of piants, he gives 

 us the hrst general phyto-geographical comparison of the floras of 

 the Færoes, Iceland and the Shetland Isles, from which he 

 draws hypothetical conclusions concerning the origins of the 

 Færoese piants. 



With the exception of a good, popular description of the 

 natural features of the Færoes by P. A. Holm (1855), 30 years passed 

 before any really new contribution was made towards the know- 

 ledge of the vegetation of the Færoes; when in 1867 the Botanical 

 Society in Copenhagen set on foot the first systematic botanical 

 investigation of the islands. On behalf of the Society E. Rostrup 

 (the well known mycologist, now Doctor of Philosophy and lecturer 

 at the Veterinary and Agricultural College, Landbohøjskolen, 

 Copenhagen), and C. A. Feilberg (medical student, now Professor) 

 made researches on the islands in the same year, Feilberg from 

 the middle of June to the beginning of October and Rostrup from 

 July 22nd to Sept. 2nd. Only some smaller islands were left un- 

 explored. In »Botanisk Tidsskrift« (1870) Rostrup made a critical 

 revision of all earlier lists of piants and of the collections in Co- 

 penhagen, and in co-operation with some specialists published an 

 entire list of the flora of the islands, based partly on the revised 



