Johnson and Knowles — The Levinge Herbarium. 125 



*Uesperis matronalis, Linn. Limerick, P. B. O'Kelly, Sept. 14, 

 1894. Top. Bot., " I include this species out of deference 

 to the views of the editors of the second edition of Cybele. 

 I have never seen it except as an obvious escape or casual, 

 and not worth noting." Cyb. 2, " Apparently semi- 

 naturalised in some parts of Ireland, and almost deserving 

 of a place in the Irish Flora." 



x *Erysimum orientate, R. Br. Rathmines, County Dublin, July 8, 

 1892. Cyb. 2, " A casual, nowhere established." 



XBrassica Rapa, Linn., var. Briggsii, H. C. Wats. Shore of Lake 

 Derevaragh at Lake House, July 18, 1895. Top. Bot., 

 " Westmeath, Knock Drin, 1895, Levinge— W.B.E.C, 

 1895-1896." " This, the Brassica campestris of Irish 

 records, is distributed in more or less abundance over the 

 whole country, and in many districts appears thoroughly 

 naturalised, growing profusely on rough banks and waste 

 ground, and on bare limestone " crags " in the west." 



~\Thlaspi arvense, Linn. Harold's Cross, Dublin, June 13, 1891. 

 Top. Bot., " Baldoyle, 1900, rare— Colgan. A plant of 

 uncertain appearance and seldom permanent. Chiefly 

 in the east, like many weeds of cultivation." Cyb. 2, 

 "In County Dublin, sparingly at Bohernabreena, 1893, 

 and abundant in a sandy field at Rush, 1894." 



VI0LACE-3E. 



* Viola tricolor, Linn. Aran Isles, Gralway Bay, P. B. O'K., July 

 8, 1892, fide E. F. Linton. Cyb. 2, " No doubt occurs 

 throughout Ireland, but is often confounded with the fol- 

 . lowing sub-species " \_V. arvensis~]. Top. Bot., "Probably in 

 all divisions, but appears to be common in the north only. 

 Not always separated from V. arvensis, and in consequence 

 some recorded stations cannot be used. Apparently rare 

 on the limestone." 



POLYGALEJE. 

 Polygala vulgaris, Linn. Bogbanks, N.-W. end of Lake 

 Derevaragh, May 17, 1890, fide W. H. Purchas. Cyb. 2, 

 " Throughout Ireland." Top. Bot., " Westmeath, Mullin- 

 gar, 1897— Carr. Coosan Lough, 1898— P." 



