THE BRYOPHYTA OF ICELAND 509 



216. Antitrichia curtipendula (Hedw.) Brid. 



E. Iceland: Hornafjordur, common!; Djupivogur!; Hof!; Starmyri!; 

 Berufjordur!. N. Iceland: Modruvellir (Thoroddsen) ! ; Geitaskard!; com- 

 mon in Vatnsdalur!. NW. Iceland: Patreksfjordur!; Kaldalon ! . Common 

 in W. and SW. Iceland!. 



Common in SE. Iceland as far as Berufjordur (where it was 

 found in one locality only), in S. and \V. Iceland and the western part 

 of N. Iceland from Blondudalur. Rare and scanty in NW., X. and E. 

 Iceland. It grows usually on a rather dry substratum, on stony slopes, 

 and soil-covered rocks, but especially on moss-grown slopes in company 

 with Hylocomiiim spp., and on the ground in coppices. In Esja it is 

 common up to a height of 300400 metres above sea-level. Only sterile 

 specimens have been found. 



FAM. NECKERACE.E. 



217. Neckera complanata (L.) Hub. 



W. Iceland: Gilsbakki!; Bardshellir (Grl.)L S.Iceland: Paradishellir 

 (Stp.)!; Reykir!; Austarhlid near Geysir!; Breidabolstadr! ; Barkarstadr!; 

 Holt!; Drangshlid!; Hrutafell!. 



Rare in W. Iceland, and rather common in S. Iceland. It grows 

 everywhere on the roof and sides of dry caves, which it often covers 

 with its extensive, dark-green mats. Only sterile specimens have been 

 found. 



FAM. LESKEACE^E. 



218. Myurella julacea (Will.) Br. eur. 



Very common on rocks, especially in humus-filled clefts ; occasion- 

 ally also on the ground, for instance on knolls in bogs. It often occurs 

 in unmixed cushions, but far more frequently mixed with other mosses, 

 and is met with both on a dry and on a somewhat damp substratum. 

 On wet rocks it often grows in association wit i Ancectangium Mougeottii. 

 Philonotis, Blindia acuta, etc.; in dry clefts in company with Mnium or- 

 thorrhijnchum, Plcigiothecium Roesei, Bartramia ityphylla, Pohlia criida, 

 etc.; or it may be met with on dry rocks woven into the tufts of Hyp- 

 mim revolutam and Grimmia spp. It does not appear to ascend higher 

 than 300400 metres. Only sterile specimens have been found. 



219. Myurella tenerrima (Brid.) Lindb. 

 Myurella apiculata Hiiben.) Br. eur. 



Grows quite similarly to the preceding species and, as a rule, in 

 company with it. and in the majority of the districts of Iceland is 

 almost as common. In S. Iceland it appears, however, to be somewhat 



