Clare Island Survey. 



10 

 PHANEROGAMIA AND PTEPJDOPHYTA. 



By R. LLOYD PEAEGEB. 

 Plates I-VI. 



[Read June 12 and November 13. Published Notembeu 29, 1911.] 





CONTENTS. 





PAGE 





General features of the district, 



1 



4. List of the flora of Clare Island, 



Extent and character of the flora of 





Notes on the list, 



Clare Island, 



2 



5. Influence of man upon the flora, 



Comparison of the floras of 





6. Origin of the flora, . 



Clare Island, Inishturk, and 





Transport by water, 



Inishbofin, 



5 



Transport by wind, 



The floras of adjoining islets, 



12 



Plumed seeds, 



The Bills, 



12 



Winged seeds, 



Mweelaun, 



12 



Powder seeds, 



Caher Island, . 



13 



Efficiency for dispersal by wind 



Description of the vegetation of Clare 





of the seeds of some British 



Island, .... 



14 



plants, 



Character of the island, 



14 



Transport by birds, 



Maritime vegetation, 



15 



Probability of a land-bridge, 



iieadowland vegetation, 



18 



The case of the Faeroes, 



Woodland vegetation, 



19 



The case of Krakatau, . 



Moorland vegetation, 



20 



7. Bibliography, 



Alpine vegetation, 



23 



S. Index, 



88 



89 

 92 

 96 

 107 



1. GENEEAL FEATTJEES OF THE DISTEICT. 



It is necessary, in the first place, to recall briefly what will be found in 

 another section as to the general features of Clare Island and its environment. 

 A glance at a map will show many features that must be borne in mind by the 

 reader of the following pages. West Mayo and West Galway form together 

 a great buttress, composed mainly of igneous and metamorphic rocks, and of 

 early Palaeozoic slates, projecting boldly into the Atlantic, and forming, with 

 the exception of the headlands of Kerry and West Cork, the most westerly 



R.I. A. PROC, VOL. XXXI. A 1 



