SPECIES OF RHINANTHUS NEW TO SCOTTISH FLORA 177 



ON THREE SPECIES OF RHINANTHUS NEW TO 

 THE SCOTTISH FLORA. 



By G. CLARIDGE DRUCE, M.A., F.L.S. 



THE genus Euphrasia has been very thoroughly studied and 

 monographed by Dr. von Wettstein, with the result that a 

 considerable number of forms have been raised to specific 

 rank. Any one who has paid attention to the genus Rhin- 

 anthtts must have also noticed the great range of variability 

 even of our British forms, but from the fact of specimens 

 becoming so blackened in drying, herbarium specimens do 

 not adequately represent this variability. 



The well-known Austrian botanist Dr. J. von Sterneck 

 has been investigating the genus for some time, and he has 

 recently determined the specimens in my herbarium with 

 some interesting results. I may say, that following many 

 Continental authors, Dr. Sterneck uses the name Alectoro- 

 lophus for the genus instead of RliinantJms. 



Alectorolophus major, Reichb., RJiinanthus major, Ehrh. I 

 have from East Ross as the var. apterus, from Arbroath, 

 Forfar (coll. A. Croall), from near Richmond, York 

 (Herb. Oxon.), and from Llyn Coron near Bodorgan, 

 Anglesey, collected by myself last year, and new to that 

 county. Another specimen from Bucks is doubtfully 

 referred to A. major by Sterneck. 



Alectorolophus minor, Dumort, RJiinantJius minor, Ehrh. 

 Is a widely distributed plant, which I have from Pol- 

 glass, West Ross ; as a narrow -leaved form from 

 Ballater, South Aberdeenshire, at 1000 feet; from Perth 

 and Argyll ; and from Berks and Oxfordshire as a stout 

 plant which I referred to the var. fallax, Koch, but 

 which Sterneck simply calls minor ; from Northants ; 

 East and West Gloucestershire; Bucks; Beds; Middlesex, 

 etc. It is a very common and generally distributed plant 

 in Anglesey and Carnarvonshire, where I gathered it 

 from the sea-level to over 1000 feet on the Glyders. 

 R. minor is also the plant which is labelled " R. major" 

 from Harlington in Beds by Mr. Saunders, and the 

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