THE BUYOPHYTA OF ICKLAND 471 



V2'A. Pohlia nutans (L.) Lindb. 



E. Iceland: Seydistjordur!; Vallanes!. N. Iceland : Mwatn (Gri.)!; 

 Hålsskogur!; Heljardalsheidi (Gii.)!. NW. Iceland: D\rafjordur!; Isa- 

 fjordur!; Sugandafjordur!; Jokiilstjordur!. W. Iceland: Breidabolstadr I; 

 Reykjavik (Grl.). S. Iceland: Frequent near Thingvellir (Grl.;!); Draupahlid 

 (Wiinsted) !. 



P. niitans was lirst found in Iceland by Steenstrup, who did not, 

 however, give the haljitat. It is also recorded by Morch, but all tbc 

 specimens coUected by bi ni liave been wrongly deterniined. It usually 

 grows on a rather dry substratum. In the majority of the localities it 

 occurred on the ground in birch coppices, as for instance in NW. Iceland, 

 where it is common everywhere in the coppices at the head of the 

 fjords. In that part of the country' it also grows both frequently and 

 abundantly on peat, and has been collected up to a height of about 

 350 metres above sea-level. 



In the other parts of the country it is rather rnre, and was as a 

 rule found in small quanlities only. Only around Thingvellir was it 

 rather common in the birch coppices. In NW. Iceland the fruil was ripe 

 about Julv Ist. 



124. Pohlia cucullata (Schwagr.) Bruch. 



Iceland i^MorchjI; Holtevad hcath (Grl.)! (deterniined by Zetterstedt 

 as Wcbera Ludwigii). N. Iceland: Akureyri, at an attitude of about 800 

 metres. NW. Iceland: Isaljordur!, at an attitude of about 350 metres; 

 D.vnjandi!; Arngerdareyri!. 



Near Akureyri it was growing in gravelh' soil saturated with melting 

 snow, associated with Polytrichiini sexangiilare, Dicranum Starckei, Pleuro- 

 clada albescens, etc. The fruit was almost ripe on July 23rd. In NW. Ice- 

 land it was common in several piaces north of Isafjordur on damp ground 

 (peat) at the bottom of the valley. Here the fruit was not quite ripe 

 in the beginning of Julv. 



125. Pohlia Ludwigii (Sprengel) Schimp. 



Pohlia Weigelii (Schimp.) Lindb. 



N. Iceland: Ljosavatnsberg!. 



In the above locality it grew abundantly on damp gravelly soil at 

 an altitude of about 500 metres. Only sterile specimens were found. 



126. Pohlia commutata (Schimp.) Lindb. 



Very common. 



Pohlia cominiitata is one of the most frequent species, especially in 

 the Alpine region ; at elevations from about 300 to 600 metres it is met 



