195 



Two species, Marsupella sparcifolia and Pohlia gracilis, belong 

 to a rather raw and cold climate, bnt they are only found in 

 more elevated parts of S. C. , respectively at ab. 500 and 300 m. 

 With regard to Sydero by itself, it may be specially mentioned that 

 Jungermania Floerkii has not hitherto been found on this island, 

 whilst it is frequent on most of the other islands, and that Junger- 

 mania lycopodioides and Jamesoniella Carringtonii grow even on the 

 summit of Kvannefjæld near Vaag, ab. 550 m., whereas they prefer 

 more sheltered piaces in other parts of the Færoes. 



The 3 northern parts, W. N. E., taken collectively possess the 

 following characteristic elements, which clearly indicate a rather 

 raw and cold climate, viz.: — Chomocarpon quadrahis, Hijgrohiella 

 laxifolia, Martinellia uliginosa, Jungermania Wenzelii, Pallauicinia 

 Dlyttii, Sphagnum imbricatum, S. centrale, S. Russowii, S. Warnstorfu, 

 Polytrichum sexangulare, P. alpinum var. septentrionale, Astrophylhim 

 medium, Philonotis seriata, Bryum cirratum, Pohlia Ludwigii, P. elon- 

 gata, Splachnum pedunculatum , Dicranum albicans, D. falcatum, 



D. Anderssonii, Oncophorus Wahlenbergii, Amblystegium dilatatum, 

 Lesquereuxia patens, Hylocomium umbratum, Plagiothecium denticu- 

 tatum var. Donii, Fontinalis gracilis. 



The following are peculiar to mild, southern regions, viz.: — 

 Lejeunea microscopica , Porella Thuja, Martinellia planifolia, Marsu- 

 pella Funckii, Metzgeria hamata, Funaria attenuata, Mollia flavovirens, 

 M. brachydontia, Barbula reftexa. 



These species peculiar to a milder climate have been only 

 found here and there in sheltered piaces, e.g. near Ejde on Ostero, 

 and in ravines near Gote and Vestmanhavn. 



A comparison between the various parts gives the following 

 general result. The N. possesses the greatest number of alp. arct., 

 viz. 19 (6%) and of suba., viz. 101 (37 7o) forms, whilst the other 

 parts only possess 8—10 (3,71%) alp. arct. and 61—76 (28 7o) suba. 

 forms. With regard to the horizontal distribution the difference 

 is but unimportant. The c. and the w. c. species are distributed 

 almost in the same propotion in all 5 parts, and the Atl. species 

 are represented by 13,3% in the S. C. W. N. and 11% in the 



E. The 3 orders, Hepaticae, Sphagna and Musci frondosi, con- 

 sidering their distribution on the islands, give the result that the 

 S. C. N. possesses the greatest percentage (ab. 28%), then the W, 

 (ab. 26%) and the E. (ab. 25%) of Hepaticae, and that the N. pos- 

 sesses the greatest number, viz. 16, of Sphagna, whilst the other 



13* 



