1 62 FLORA OF DUMFRIESSHIRE. 



Zostera marina. Linn. (Grasswrack). 



RECORDS: Kcd.d. N. Lloyd, 1837. Wgt.G. C. Druce, 1883. 



LOCALITIES : Along the shore Kirkcudbright Bay, G. N. LI., P. Gr.; 

 Dee and Urr mouth, J. M'A.; Auchencraig, J. C. W., between Arbig- 

 land and Southerness, J. Fr. 



Zostera nana. Roth. 

 RECORD: Kcd. Professor Oliver, 1887. 



Ruppia maritima. Lin n. 



RECORDS : 1608. Spiralis (fide J. M 'Andrew), Kcd.G. N. Lloyd, 

 1837. Wgt. Greville, Herbarium, 1836. 



LOCALITIES : Along the shore Lochryan, Stranraer, Grev.; Kirkcud- 

 bright, G. N. LI.; Lot's Wife, Sandyhills, Douglas Hall, Gillfoot, P. Gr., 

 J. M'A. 



Potamogeton natans. Linn.* 



RECORDS: Dfs. and Kcd. P. Gray, 1850. Wgt.G. C. Druce, 

 1883. 



LOCALITY : Very common in all the valleys. 



Appears June 14. In ditches, low streams, often on wet mud. 



Potamogeton polygonifolius. Pourr. 



RECORDS: Dfs.]. T. Johnstone, 1891. Kcd.}. M'Andrew, 

 1882. Wgt. Dr Arnott, 1848. 



LOCALITIES : Annandale Lochmaben, G. Bl., S.-E.; common at 

 Moffat, J. T. J. 



Much deeper waterjhan preceding, usually stagnant ponds. 



Potamogeton plantagineus. Du Grog. 



RECORD : Dfs. F. Buchanan White (Scottish Naturalist, vol. 2, 

 New Series). 



* In this genus I have simply followed the London Catalogue, as the integration of the sub-species 

 has never to ray knowledge been carefully done. 



