ON NATURAL HYBRIDS. 209 



floccose, margins pale green. The peduncles are long and straight, 

 thickened upwards and flattened, floccose, with green-tipped set*e and 

 few black-based hairs interspersed. The outer ligules are glabrous, 

 the inner sparingly ciliate. Styles slightly olive-green on the under 

 surface. Pappus very tawny. The Rev. E. S. Marshall and I 

 gathered it abundantly by mountain streams near Inchnadamff and 

 Lochinver, in West Sutherland ; the Rev. E. F. Linton has sent it 

 from two localities near Moffat, Dumfries ; and the Rev. Aumistin 



several Welsh localities. We gathered it together last 

 summer on mountains in the neighbourhood of Bethesda, Carnarvon, 

 where fine specimens were secured for growing, drying, and 

 describing, and from one of which an excellent drawing was made 

 by my late sister-in-law, Mrs. Mackenzie. I have sent the plant to 

 Scandinavia on two occasions; once Dr. Lin leberg merely wrote, 

 "H. novum;" another time, " Hc-ec ab omnib. formis Hieracii 

 murorum bene distincta!" 



H. HYPociLERoiDEs Gibs. (Gibsoni Backh.), saxorum, n. f. vel var. 



This is a very marked aberration from the type, discovered by 



the Rev. A. Ley on red sandstone mountain rocks at 1200-1400 ft. 



near Capel Cellwen, Brecon, and on slate rocks near Rhaiadr Falls, 



Montgomery. These are the only instances in which I have known 



this extraordinarily well-marked species to occur off the limestone ; 



and whether the marked differences in the facies of the plant are 



simply due to geological causes, I am at present unable to say, not 



having yet cultivated this form with the type, and under similar 



conditions. It should be borne in mind that typical H. hypo- 



cJuBroides occurs in Wales at Castell Dinas Bran. The whole habit 



of the variety is coarser, and more straggling than the type. The 



radical leaves are on the average narrower and more acute, of a 



paler green, and appear to entirely lose the characteristic purple 



blotches as they advance in age, although when young they are just 



as beautifully spotted as in the type. The peduncles are longer, 



and less straight and rigid ; whilst the phyllaries are more acute,' 



darker, and with much less markedly white margins; the styles 



are pure yellow, as in the ordinary form. 



(To be continued.) 



ON NATURAL HYBRIDS 



By William H. Beeby. 



Recently 



been discussed, and as it is a subject in which British botanists are 

 daily taking an increasing interest, I offer a few observations in the 

 Lope of inducing fresh workers to enter the field. 



The anti-hybrid paper to which I more particularly refer does 

 not contain any argument supported by evidence, or any account 

 of experiments made, and consists of fiction rather than of fact* its 

 ^natter does not suggest that the author has studied the literature 

 of the subject, or that he has applied to any hybrid-monger for 



Journal of Botany. — Vol. 30. [July, 1892.] 



