150 FLORA OF DUMFRIESSHIRE. 



(also van I?.), Caledonian Railway (var. b.), G. Bl.; Kirkpatrick-Juxta, 

 F. A. H.; Beattock (var b.\ J. T. J. Eskdale—GXennax, S.-E.; Castle 

 O'er, J. Wn. and R. Bl. 



In water of lochs or sluggish streams with roots in mud. Var. b. on 

 waste dry ground, corn fields, etc. 



Visitors : Syrphus, sp.; Dolichopodidse, Tetanocera, sp., E. Ty. 



Polygronum lapathifolium. Linn. 



Records: Dfs. — ^Dr Davidson, 1886. A?^.— P. Gray, 1850. Wgt. 

 — G. C. Druce, 1883. 

 Var. incana, Dfs. — J. T. Johnstone, 1889. 



Localities : Very common in all the valleys to about 900 feet (var. 

 Beattock, J. T. J.). 



Appears July 30, J. T. J. On dry soil of cultivated fields, cinders 

 of railways, etc.; fully exposed. 



Polygronum persicaria. Linn. 



Records: Dfs. and Kcd. — P. Gray, 1850. JVgt. — G. C. Druce, 

 1883. 

 Nodosum, var. glandulosum (?), J. T. J. 



Locality : Very common in all the valleys to 900 feet. 



Appears July 30. On dry soil, cultivated fields ; fully exposed. 



Visitors : Hyetodesia incana, Siphona cristata, Hn. 



Polygonum lapathifolium x persicaria. 



Record : Dfs. — J. T. Johnstone, 1891. 



Polygonum hydropiper. Linn. (VVaterpepper). 



Records: Dfs. and Kcd. — -P. Gray, 1850. IVgf. — ^G. C. Druce, 

 1883. 



Localities : Nithsdale — Dalscone, F. W. G.; Lincluden Holms, 

 Cluden Mill, Hn., S.-E.; Cowhill, Ad. and S. D. J.; New Loch, Rash- 

 briggs, R. A.; Sanquhar, Dr Dv. Annandale — Lochmaben, S.-E.; 

 Moffat, common, J. T. J. Eskdale — Esk, Liddel, S.-E. 



Appears July 30, J. T. J. On wet places of holms or lake margins ; 

 usually fully exposed. 



