500 A. HESSELBO 



196. Psilopilum lævigatum (Wahlb.) Lindb. 



Oligotrichiiin glabratum Lindb. 

 O. lævigatum Br. eur. Psilopilum arcticiim Brid. 



E. Iceland : Hornafjordur!; Berufjordur!; Seydisfjordur!. N. Iceland: 

 Husavik!; Akurc}'!'!!; Hof near Eyjafjordur (O. D.)!; Geitaskard!. NW. 

 Iceland: Isafiordiirl; Snæfellsslrond 1 . \Y. Iceland: Stykkisholmur ! ; Stadar- 

 feil ;,Stp. !; Hafnarfjordiirl; Reykjavik (Morch; Ho.; Stp.;!j. S. Iceland: 

 Common in Olfus!. 



Commonly distributed everywhere near the coasts. It grows there 

 on ratber dry peaty ground, and often in grcat abundance. For instance 

 near Reykjavik it covers in association witb Dicranella crispa, Bryiim 

 pallens, Scapania ciirta, etc. large tracts of ground on the peninsula. It 

 appears to thrive more particularly in drained bogs whence peat is being 

 cut; tbus around Husavik, Akureyri and Isafjordur it occurred in verj'^ 

 great abundance, partly on the ground and partly on the piled up heaps 

 of cut peat, which were often quite covered b}' il. Funaria hygrometrica 

 and Pogomihim iirnigcnim often occurred abundantly in company with 

 it. Fruit ripens in the beginning of (Reykjavik) or at the end of June 

 (N. Iceland). 



Note. F. Hagen in his preliminary works on a Frondose-Moss Flora 

 of Norway (XIX, Polylrichaceæ, supposes that Psilopilum tschiictschicnm 

 (Mi'ill. Hal.) Par. has been collected in Iceland by W. F. Hooker. AU 

 the specimens I have had an opportunity of investigating, both numerous 

 older specimens collected b}'^ Morch, Krabbe, Gronlund and others 

 and my own specimens collected in a considerable number of habitats 

 from all parts of Iceland, belong to Psilopilum lævigatum, which is doubt- 

 less the only species of this genus found in Iceland. 



197. Pogonatum polytrichoides (L.) Brockm. 

 Pogonatnm mimim (Schreb.) P. B. P. subrotundum Lindb. 



Iceland (Ho.; Morch 1. W. Iceland: Reykjavik fOrl.;!); Stykkisholmur 

 (Stp.)!; Sletta (Stp.); in the district of Borgarfjordur!. S. Iceland: Near 

 the Thjorsa (Stp.l!; frequent in Olfus!. 



This species was found onh' in SW. and W\ Iceland, but was rather 

 common in both placcs on somewhat damp and especially peaty soil, 

 for instance by the sides of ditches and along roads. In the district 

 of Borgarfjordur it was common along roads. Around Reykjavik it was 

 found everywhere bj' the sides of ditches. Fruit was found everywhere, 

 the capsules were partly old specimens from the previous year and 

 partly such as were ([uile young even in August. 



Note. Pogonatum aloides (Hedw.) is recorded to have been collected 

 by Steenstrup near Sletta, Stykkisholmur and the Thjorsa. but all the 

 specimens belong to P. polytrichoides. 



