THE BRYOPHYTA OF ICELAND 455 



()5. Barbula icmadophila Scliinip. 



SE. Iceland : Hornafjordur!, in several placcs in small quantilies. 

 N. Iceland: Skagafjordur (Grl.)!; Hofsfjall near Eyjafjordur (O. D.)!. 

 W. Iceland: Esja, at an allitude of 400 metres!. 



This species has bcen collected everywhcre only in small quantilies, 

 in cushions 1—2 cm. deep, on humus-covered rocks. 



G6. Desmatodon latifolius (Hedw.) Br. eur. 

 Toiiula latifolia (Hedw.) Lindb. 



E. Iceland: Djupivogur!, common near the sea; Vallanes!; Hamar- 

 fjordur!; Berufjordiir!. N. Iceland: Husavik! at an altitude of about 

 400 metres; Reykjahlid!; Grimsey (O. D.)!; .Stadr near Hrutafjordur !. 

 NW. Iceland: Isafjordur!; Grunnavik!; Hesteyri!; Arngerdaeyri ! ; W. Ice- 

 land : Slykkisholmur!. 



Var. muticus Brid. 



Grimsey (O. D.)!; Reykjahlid!; Isafjordur!, 450 metres above sea- 

 level. Found in all the localities together with the type. 



In NW. Iceland D. latifolius is one of the most frequenth' occur- 

 ring species, and the same appears to be the case in E. Iceland. It 

 occurs especially near the sea on sandy soil or, also, on humus-covered 

 rocks, and often abundantly. Near Vallanes it grew in masses on peat 

 walls and on dikes around the farm, associated with Encalijpta rhab- 

 docarpa, Tortilla subnlata, Ceratodon purpiireus, Brijiim argenteiim, Bar- 

 Iramia itijphylla, etc. 



In N. Iceland this species occurs more sporadically. Near Husavik 

 only a single little tuft was found on the top of Husavikurfjall; near 

 Reykjahlid it was common in lava-fields, in piaces covered by a thin 

 humus-layer, associated with Ceratodon parpiireus, Tortilla riiralis, T. su- 

 bnlata, etc, and near Stadr it grew on the peat walls of the farm ex- 

 actly as it grew near Vallanes. From SW. and S. Iceland this species 

 appears to be quite absent, and in W. Iceland it was only found near 

 Stykkisholmur, where it was found abundantly on earth and rocks along 

 the shore. 



It is only by exception that Desmatodon latifolius has been found 

 at higher attitudes. Near Isafjordur it occurred liere and there on the 

 rocky flat up to a height of about 500 metres, for instance on a stony 

 slope 450 metres above sea-level, associated with Brijum elegans, Bar- 

 tramia itijphijlla, Pohlia commntata, Scapania ciirta and Encalypta rhab- 

 docarpa. The fruit , which was present every where in abundance, ri- 

 pens at the end of June. 



67. Desmatodon cernuus (Hiibn.) Br. eur. 



Toiiula ceriuia (Hiibn.) Lindb. 



N. Iceland: Hof (O. D.)!; Hjalteyri (O. D.)!. 



On the plant from Hjalteyri the fruit had just ripened on Sep- 

 tember 5, 1897. 



