A LIST OF BRITISH ROSES 



not B. virginea, and I do not know how otherwise to name them. 

 V.-c. 3 •?, 13, 14. 



R. SYSTYLA Bast. Ess. Fl. Mame et Loire Suppl. p. 31. As a 

 rule this species is quite unmistakable, but when out of flower it 

 may be mistaken for the true B. leiicocliroa Desv. V.-c. 1, 2, 3, 

 6, 11, 13, 15, 16, 17, 18, 21, 22, 23, 24, 31, 32, 34, 35, and probably 

 in m.ost of the intermediate vice-counties. 



R. SYSTYLA var. LANCEOLATA Lindl. Monog. Eos. p. 111. A 

 specimen from Pebblecombe, Surrey, with a peculiar aspect from 

 its small, rather lanceolate leaflets, has been referred here by 

 Sudre. V.-e. 17, and Ireland. 



R. LEUCOCHROA Desv. in Journ. de Bot. 1809, ii. p. 316. Since 

 writing my notes in B. R. pp. 13-15, I have received Prof. 

 Dingler's remarks on my specimens. Taken in conjunction with 

 those of Mr. Rogers and M. Sudre, they show how experts difl'er 

 in this critical genus. It may be of interest to give an epitome 

 of their opinions. 



The above specimens were all gathered in S. Devon, and were 

 intended to cover the various forms of what I supposed to be 

 B. leucochroa. I have again examined Deseglise's series at 

 South Kensington, as well as the British examples, and am con- 

 firmed in my opinion that there are two plants involved. The 

 true B. leucochroa Desv. is simply a white-flowered B. systyla 

 Bast., in which the style-column is sometimes, not always, short. 

 This form seems common on the Continent, but rare in Britain, 

 where it has been gathered in S. Devon by Archer Briggs and 



