630 



A. HESSELBO 



to the meridional group are not included in the present or fol- 

 lowing sections. 



Table I. The Plant-geographical Groups. 



Of greatest interest in this connection is the comparatively large 

 group of meridional species, which comprise about VG of all the 

 species. According to their distribution in the different districts of 

 Iceland they can be divided as follows: 



a. Found only in the Southern part of Iceland (South Iceland 

 and most nearly adjacent parts of South-east and South-west Iceland). 



Reboulia hemisphserica. 

 Fegatella conica. 

 Fossombronia Dumortieri. 

 Aneura multifida. 

 Marsupella Funckii. 

 Jamesoniella autumnalis. 

 Lophozia excisa. 

 Lophocolea cuspidata. 

 Lepidozia setacea. 

 Frullania fragilifolia. 

 Lejeunea cavifolia. 

 Sphagnum papillosum. 

 Weisia crispata. 

 viridula. 



Trichostomum littorale. 

 Barbula unguiculata 



var. cuspidata. 

 Tortula muralis. 



mucronifolia. 



Hedwigia albicans. 

 Orthotrichum anomalum. 



saxatile. 



cupulatura. 

 Mnium tmdulatum. 

 Leucodon sciuroides. 

 Anomodon viticulosus. 

 Thuidium tamariscinum. 



Philiberti. 



Isothecium myurum. 

 Scleropodium purum. 

 Eurhynchium piliferum. 



Swartzii. 



Stockesii. 



Rhynchostegium murale. 

 Plagiothecium depressum. 



elegans. 

 Amblystegium fluviatile. 



Hypnum molluscum. 



b. Most common in South Iceland, rarer in the other parts of 

 the island. 



Madotbeca Cordaeana. 

 Barbula cylindrica. 

 Mnium serratum. 

 Catharinea undulata. 

 Neckera complanata. 



Thuidium delicatulum. 

 Thamnium alopecurum. 

 Rhynchostegium rusciforme. 

 Camptothecium lutescens. 

 Hypnum commutatum. 



