name caesium 



FURTHER NOTES ON HIERACIA. 869 



are remarkably neat (marigold-like), and of a deep golden yellow. 

 Ligules practically glabrous. Styles rather livid. Buds long and 

 cylindric. Pbyllaries adpressed, inner sub-acute, all very floccose 

 at the tips and margins, and clothed with short black-based hairs 

 and setae. Peduncles densely floccose and setose. Radical leaves 

 few, the outer oval or ovate, blunt, apiculate, almost entire, the 

 inner ovate-lanceolate, very acute, and with a curious lateral curve 

 extending from the apex to the base of the rather long shaggy 

 petiole, and more decidedly toothed, especially towards the base. 

 There is one lanceolate, acute, toothed and shortly stalked stem-leaf, 

 of much the same form as the inner radical leaf. All deep green, 

 coriaceous, with rather prominent veins, clothed on both sides with 

 rough white hairs, though in some specimens the upper surface is 

 nearly or quite glabrous. Dr. Lindeberg, while considering the 

 form should be placed under H. ostium, spoke of it as " ignoturn, 

 pulchrum, distinctura ! " There being much doubt as to what 

 amount of variation Fries intended to allow under the use of the 



uam , _ p and since it has become convenient to designate as 



by II. murorum Linn., a very variable section rather than a well- 

 defined species, I gladly follow Dr. Lindeberg's suggestion, and 

 describe yet another distinct-looking form. When, however, Mr. 

 Baker's two varieties, cambricum and Smithii, the plant we commonly 

 regard as type casium, Dr. Lindeberg's var. alpestre, and a form like 

 the present are placed side by side, any exact definition of such a 



species becomes impossible. 



H. Friesii Htn. var. Stewartii, n. var.— A constant and 

 strongly marked local variety collected for many years by Mr. S. A. 

 Stewart from the Shimna Biver, Tollymore Bark, and in even 

 greater abundance and luxuriance from the Ban River among the 

 Mourne Mountains, Co. Down. It differs from other forms m the 

 large size to which it attains, often three feet in height, in the great 

 breadth of the leaves, in this respect outstripping Mr. Backhouse s 

 var. latifoliwn, and in their extraordinarily cuspidate character, the 

 sharp, narrow, curved and forward pointing teeth often attaining 

 about f of an inch in length. The heads are remarkably large and 

 handsome, being of a deeper golden yellow than m the ordinary 

 forms. I had the pleasure of collecting a very fine series in Mr. 

 Stewart's company last year whilst staying at Hilltown where the 

 masses of the plant on both sides of the Ban form a striking feature 



in the vegetation. 



H Fkiesh Htn. var. hibsutum, n. var. — Under the above 

 varietal name is here briefly described a form I found in August, 

 1887, in the stony bed of the Clunie at Braemar. Ihe Rev. h. h. 

 Linton informs me that he has since gathered similar specimens in 

 the same locality. I have raised and cultivated for four years a 

 clump of seedlings even more distinct looking than the parent 

 plant Last year Dr. F. Buchanan White sent me very similar, if 

 not identical, forms from Strath Braan and Linn of Campsie, 

 Perthshire. All these specimens differ markedly from type Frtmi 

 in being clothed all over with long white hairs, especially when 

 young, and in having a sparingly floccose and (rather densely m 



Journal 



Vol. 29. [Dec. 1892.] 2 r 



