260 FURTHER NOTES ON HIERACIA. 



near Denny, Stirling; by Mr. D. A. Boyd on subalpine rocks at 

 Largs, Ayrshire; and by the Allt Dubh Ghalair, Glen Lochay, 

 Perthshire, by myself. It is a pretty form, with very narrow 

 leaves, intermediate between H. murorum and H. duriceps. 



H. duriceps, n. sp. — A graceful and strongly marked species, 

 apparently confined to Scotland. It is abundant on the miniature 

 rocky cliffs of some of the burns of Sutherlandshire, where it was 

 first observed in quantity by the Strath Bagaisteach, near Altna- 

 harra, in the summer of 1888, by Mr. Melvill and myself. A still 

 finer series was secured from the River Oykell in 1890, whilst 

 collecting with Mr. Marshall, and in smaller quantity from the 

 Traligill burn, near Inchnadamff. It also occurred sparingly near 

 Kingshouse, Argyle ; and Mr. Marshall gathered it last year from 

 Ben Chaistel, near Tyndrum, and from Stob Garbh, W. Perth. 

 Mr. Beeby has found it in Shetland, while specimens which I believe 

 to be referable to this species were sent me by the Bev. W. B. 

 Linton from Sneasdale, Uig, Skye. 



This plant is usually from about 15 to 20 in. high, belongs to 



the murorum section, and is graceful and slender in all its parts. 



Stem wiry, reddish purple, and clothed with soft white hairs below, 



the main portion appearing glabrous to the naked eye, though 



bearing a few short hairs. The peduncles are remarkably straight 



and slender, giving a very rigid and angular appearance to the head 



of inflorescence ; they are floccose, pilose, and setose, there being 



two sorts of setae, very minute ones, which scarcely show above 



the stellate hairs, and much larger ones, such as occur on the 



peduncles of most Hieracia. The flowers are small and rather 



numerous; the involucre hard, compact, and, when mature, conical. 



Phyllaries narrow, acute, deep green, densely setose, and sparingly 



floccose and pilose. Ligules ciliated at the tips, especially when 



young. Styles livid. Badical leaves small, lanceolate, subacute ; 



primary oval and apiculate, all more or less toothed, especially 



towards the base, and narrowed to a slender petiole ; they are dull 



green, much blotched with purple when growing in an exposed 



situation, almost glabrous above, with scattered white hairs beneath. 



Stem-leaves narrow, of much the same form as the radical, petioled 



when occurring low down, sessile when springing from the point of 



branching. It maintains its very distinct and marked facies under 



cultivation. I sent it on two successive occasions to Dr. Lindeberg, 



who wrote, " Ab H. murorum diversum " and " Forma pulchra ab 



H. murorum distincta." All who have seen the plant concur in this 

 opinion. 



Having for several years past constantly spoken of this plant, 

 among those helping me, as the " Small hard-headed Hawkweed," 

 the Rev. W. R. Linton suggested the perpetuation in a latinised 

 form of so characteristic an appellation. 



iqq?' Breadalbanen se, n.sp. — This species, first gathered in 

 1888, appears to be very local, and, so far as my present knowledge 

 goes, to be confined to the Breadalbane range proper. Like the 

 last, it belongs to that almost endlessly variable section, the Scapi- 

 yera, but possesses such marked characters and striking facies that 



