HIERACIUM. 203 



incumbent, styles yellow. — H. hypoehmroides S. Gibs. H. hypo- 

 charidisB.. & A.— 6— 18 in. high. Fits, bright yellow. Phyll. 

 not cuspidate. L. rosulate, persistent, very broad, blotched with 

 purple above. — On limestone rocks near Settle, Yorkshire. 

 P. VII. VIII. E. 



18. H. argenteum (Fr.); very glaucous, rt.-l. lanceolate acute 

 denticulate towards the middle or entire glabrous above with short 

 petioles, st. simple or branched with few sessile or stalked 1., 

 branches long straight, inv. broadly ventricose becoming sub- 

 truncate below slightly setose and hairy and &occose,phyll. blunt 

 adpressed, styles yellow. — H. pallidum ^. persicifohum Bab. — 

 1 — 2 ft. high. Buds cylindrical. Inner phyll. subacute, pale- 

 edged. Fits, bright yellow. L. with scattered habs beneath 

 and at the edges. Petioles usually short. Original 1. bluntish. 

 Upper st.-l. small, narrow. — Mountain districts of England, Scot- 

 land and Wales. P. VII. VIII. E. S. 



19. H. nitidum (Backh.) ; dark green, rt.-l. lanceolate acute 

 coarsely and sharply toothed glabrous above with short petioles, 

 at.-l. 1 or 0, St. few-headed, ped. scaly, inv. ventricose setose and 

 hairy slightly floccose, phyll. acuminate or bluntish, styles yel- 

 low. — 16 — 24 in. high. St. nearly hairless. Heads large; fits, 

 bright yellow. L. slightly hairy beneath ; teeth very large, not 

 directed downwards. Petioles usually short. Original 1. roundish. 

 — By mountain streams in Aberdeenshire. P. VII. VIII. S. 



20. H. aggregatum (Backh.) ; deep green, rt.-l. ovate blunt 

 coarsely dentate below floccose beneath-when young, st.-l. I lan- 

 ceolate narrowed at both ends, st. corymbose and floccose at the 

 top, ped. aggregate, inv. subtruncate below loosely floccose setose 

 nearly hairless, phyll. blunt. — H. bifidum Koch? — 12 — 20 in. 

 high. St. usually simple. Ped. forming a close corymb as in 

 H. umbellatum. Heads many. Buds cylindrical. Fits, bright 

 yellow or orange. Styles yellow. L. rosulate, persistent ; original 

 1. nearly round; innermost acutish. Petioles rather winged, 

 slightly hairy. St.-l. subsessile. Phyll. adpressed. — By moun- 

 tain streams in the Grampian Mountains. P. VII. VIII. S. 



tt Styles more or less livid. 



21. H. murorum (L.) ; green, rt.-l. ovate often cordate and 

 with large patent or descending teeth below, petioles shaggy, 

 st.-l. or 1 stalked and placed high, heads subcorymbose, ped. 

 arcuate ascending, inv. thinly clothed floccose setose with few 

 hairs, phyll. acuminate erect overtopping the glabrous-tipped 

 buds, styles livid. — 12 — 18 in. high. Young heads cylindrical. 

 L. usually thin. St.-l. ovate-acuminate, often rounded or cor- 

 date below. Styles rarely yellowish. — "/3. rotundatum (Backh.); 

 St. elongate, often leafless, rt.-l. broadly ovate rounded at both 



