418 A. HESSELBO 



54. Lophocolea cuspidata Limpr. 



Vestmannaey!. S. Iceland: Holt!. 



On Vestmannaey it was found in several places at the base of cliffs 

 and in specially large quantities in Heljusdal where it grew abundantly 

 among stones on an Urd usually mixed with Eurynchium , Stockesii 

 and Mnium undiilatum. Near Holt it was found in several places, but 

 everywhere only in small quantities in clefts of tuff-rocks, woven into 

 the tufts of mosses. Only sterile specimens have been found. 



55. Lophocolea minor Nees. 



N. Iceland: Halsskogur (O. D.)!. S. Iceland: Reykirdalur!; Vestman- 

 naey: Heljusdal!. 



In Reykirdalur it was growing rather sparingly on a grass-covered 

 slope stretching down towards a stream. On Vestmannaey it occurred 

 in several places associated with L. cuspidata sometimes intermixed in 

 its tufts. In all the localities only sterile specimens were collected, but 

 bearing the characteristic gemmae. 



56. Chiloscyphus polyanthus (L.) Corda. 



Common in wet localities or in water, on gravelly ground and 

 occasionally in bogs and on wet rocks. Only sterile specimens were 

 found. 



It occurs sometimes in unmixed cushions, which are usually blackish- 

 green in colour in water and yellowish-green in boggy ground, some- 

 times mixed with other Bryophyta such as Marchantia, Philonotis, Dicra- 

 nella squarrosa and Mnium spp. It is most widely distributed in the 

 lowlands up to about 300 metres and does not appear to ascend much 

 higher than 400 metres. 



The typical form was collected only in S. Iceland on damp tuff- 

 rocks near Holt. All the other plants which have been investigated be- 

 long to var. fragilis (Roth) K. M. It varies considerably as regards 

 size and colour, but the form of the leaves and the size of the leaf- 

 cells are almost always the same. 



Note. Chiloscyphus pallescens is recorded from several places by 

 Morch, Gronlund and HelgiJonsson, but all the specimens refer- 

 red to this species belong to Chiloscyphus polyanthos var. fragilis. 



57. Harpanthus Flotowianus Nees. 



E. Iceland: Seydisfjordur, several places!. N. Iceland: several places 

 around Eyjafjordur (O. D.)!; Stadr near Hrutafjordur!. NW. Iceland: Dyra- 

 fjordur; Sugandafjordur; Isafjordur; Grunnavik; Kaldalon; Arngerdareyri!. 

 W. Iceland: Olafsdalur in Dalasysla (H. J.)!; Esja, several places!. 



In NW. Iceland this species is of the most frequent occurrence 

 among all the Bryophyta and is met with everywhere on wet ground 

 up to a height of about 300 metres above sea-level. In the other parts 

 of the country it is wanting or rare; on Esja it is however rather fre- 



