86 



The Scottish Naturalist. 



P. pusillus. 



Old quarries; Scotscalder; Georgemas ; Durran ; Bower; Mey; 

 near Wick ! Thurso River ! 

 Var. tenuissimus. Halkirk, Dr. A. Davidson / 

 P. filiformis. 



Pulteneytown Watercourse, Old Wick ! Loch Hempriggs, and 

 stream from Loch Winless, F. J. Hanbury ! Watten ! 



P. plant agilieus Du Croz was recorded by Robert Dick ; but no speci- 

 mens of this plant have been seen by us ; and the specimens so 

 named in Dick's herb, seem to belong rather to P. yolygonifolius. 



Ruppia maritima. 

 Zostera marina. 



Seashores. 

 Scirpus palustris. 



In marshes and beside lochs and rivers. 

 S. uniglumis. 



Sandy banks of Wick River, opposite Westerseat ! 

 S. multicaulis. 



In marshes. 



S. pauciflorus. 



Frequent on moors ; near Thurso, W. W. Reeves ! Banks of 

 burn near Loch Winless, Dr. Davidson ! Sides of Loch 

 Yarehouse ! 



S. caespitosus. 



Common on moors ; Duncansby Head ! 



S. fluitans. 



In pools on moors ; Kilminster ; Myrelandhouse ! 



S. setaceus. 



On gravelly shores of lakes and rivers. 



S. lacustris. 



Along sides of rivers ; Wick River ! 



S. rufus. 



(B/ysmus rufus). Among grass on sandy banks of Wick River ; 

 Links at Ackergill, and at Dunnet ! Cliffs at Oldwick. 



Eriophorum vaginatum. 



On moors, local ; Knockfin Heights ! 



E. angustifolium. 



Common on moors ; marshes of Wick River ! 



