HIERACIUM. 199 



late with a few large teeth, heads very large. Lofty mountains 

 of Scotland. P. VII. VIII. S. 



4. H. holosericeum (Backh.) ; green, st. 1 -headed shaggy silky 

 floccose, rt.-l. lancGolate-spathulate or linear-lanceolate blunt 

 hairy on both sides narrowed into winged petioles, st.-l. few 

 small sessile, buds nodding, inv. turbinate shaggy with long silky 

 white black -based hairs, outer phyll. very lax leaf ike blunt, inner 

 pfyyll. adpressed linear acute, styles yellow. H. alpinum Sm. 

 $. B. 1110. 3 9 in. high. Usually 12 st.-leaves. Head 

 solitary ; outer phyll. very broad, often scattered below the head. 

 L. entire or sometimes slightly denticulate. Fits, densely hairy 

 at the tips, bright yellow. Lofty mountains. Cumberland. 

 Grampian and Breadalbane Mountains. P. VII. VIII. E. S. 



5. H. eximium (Backh.); green, st. usually l-headed hairy 

 floccose, rt.-l. lanceolate acute sharply toothed hairy on both 

 sides narrowed into broadly winged petioles, st.-l. small slender, 

 buds nodding, inv. truncate below shaggy with rather silky black- 

 based hairs, phyll. many linear-attenuate, outer phyll. small lax. 

 H. melanocephalum H. and A. 6 15 in. high. St.-l. few. 

 Rarely more than 1 large head. L. sometimes entire, usually 

 with large teeth. Flowers twice in cultivation, (1) with one 

 head, (2) with many nearly parallel branches and many heads. 

 a. st. elongate, rt.-l. lanceolate dentate, styles livid. /3. tenellum; 

 st. short slender, rt.-l. lanceolate or linear-lanceolate, styles yel- 

 low. Considered a distinct species by Dr. Grenier. Lofty 

 mountains. Clova. Braemar. P. VII. VIII. S. 



6. H. calenduliflorum (Backh.); deep green, st. usually 1- 

 headed hairy floccose, rt.-l. broadly ovate-spathulate blunt api- 

 culate sharply toothed hairy on both sides narrowing into broadly 

 winged petioles, st.-l. very small slender, buds nodding, inv. 

 truncate below shaggy with rather silky black -based hairs, phyll. 

 many linear-attenuate, outer phyll. lax, styles livid. 6 14 in. 

 high. St.-l. few. Head most usually solitary, very large. 

 Youngest 1. sometimes rather acute. Original 1. nearly circular. 

 Nearly allied to H. eximium. Lofty mountains. Lochnagar. 

 Clova. P. VII. VIII. S. 



** Nigricantes. Inv. villose or hairy. Phyll. adpressed, or 

 few outermost lax. Fits, nearly hairless externally, minutely 

 pilose or subglabrous at the tips. 



t St. short with 1 or few heads. 



7. H. gracilentum (Backh.); green, st. usually l-headed hairy 

 floccose, rt.-l. lanceolate or o6Zo/i^-lanceolate narrowed into pe- 

 tioles, st.-l. few large narrow-lanceolate attenuate below, inv. 



