830 MR FRANCIS J. LEWIS 



W. Shetland — Walls District. 



Upper layers of First Arctic Bed (p. 802), associated with Potentilla Comarum, 

 Lychnis diurna, Carex paniculata, Selaginella selaginoides : — 



Hypnum elodes, Spr. 

 H. scorpioides, L. 



The whole consisted of these two species in some quantity, the former in more than 

 one form. Clearly a paludal deposit. Both species occur in Shetland at the 

 present day. 



Iceland — District south of Reykjavik, near Havnafjord. 



From layer 6, containing Betula verrucosa, in first valley described on p. 829 : — 



Sphagnum intermedium, HofFm., a single leaf. 



Philonotis fontana, Brid. 



Philonotis sp. A few fragments of a Philonotis much eroded, with very stout 



adpressed nerve ; it may belong to an adpressa form. 

 Hypnum pratense, Koch. It is either this or H. Patientise, Lindb. The leaves 



are minutely but clearly denticulate, which I have found occur on H. 



pratense, but not on H. Patientise ; and I think this points clearly to its 



being the former. 

 Hypnum giganteum, Schp. 

 Hylocomium splendens, B. and S. 



These are all either bog, aquatic, or terrestrial mosses, such as might have been 

 brought down by a stream from a plateau. 



From the Betula verrucosa layer in another section in the first valley : — 



Hypnum uncinatum, Hedw. With numerous $ flowers. 



From stratum 3, associated with Betula verrucosa, Ehrh., in the second valley 

 described on p. 829 : — 



A single fragment only ; probably Hypnum pratense, Koch. 



From the base of stratum 3, associated with Betula verrucosa, Ehrh., described on 

 p. 829 :— 



Dicranum strictum, Schleich ? I think the single fragment of a Dicranum 

 contained here almost certainly belonged to this species. Unfortunately, 

 the slide, which I was sending to M. Cardot for his opinion, was posted on 

 the eve of the Post Office strike in Paris, and was irrevocably lost. The 

 basal cells were perhaps a little large for that species, but I do not think 



