198 45. COMPOSITE. 
20. H. rigidum (Hartm.); green, st. leafy panicled above, 1. 
sessile lanceolate or linear-lanceolate few-toothed in the middle, 
lowest 1. stalked, inv. not constricted in the middle with deciduous 
stellate down black sete and hairs, phyll. lanceolate bluntish 
uniformly blackish-green.—St. usually simple, rigid. Inv. some- 
times with very short hairs and seta, after flowering a little nar- 
rowed upwards. Phyll. with patulous points, uniformly coloured 
where wholly exposed.—Mountainous districts. P. VII. VIII. 
E. 
21. H. gothicum (Fr.); dark green, st. rigid leafy subcorymbose 
above, 1. lanceolate or ovate strongly toothed in the middle 
sessile, lowermost 1. shortly stalked, phyll. spirally imbricated 
nearly glabrous broad mostly obtuse, keel slightly hispid and 
setose, ped. whitely tomentose setose.—Ped. and branches erect. 
Heads broad below. Phyll. nearly uniform in colour, turning 
blackish.—England. Mr. Woods. Hook and Ockham, Surrey. 
ifr. Watson. Teesdale. Mr. Backhouse. P. VII. VIII. E. 
b. Outer phyll. narrowest, inner obtuse —These are the true 
Accipitrine which do not produce rosettes. 
* Tips of buds ciliated. L. clasping. 
22. H. prenanthoides (Vill.); st. leafy, 1. all clasping denti- 
culate, hairs on underside of 1. not bulbous-based, root-l. evanes- 
cent, lower st.-1. narrowed into a petiole with an auricled clasping 
base, intermediate pinched above their base, uppermost 1. cordate- 
lanceolate, ped. and interruptedly imbricate inv. whitely stellately 
downy and setose, phyll. mostly equal blunt outer ones few and 
short, fr. pale—. B, 2235,—Heads small, narrowly cylindrical. 
Phyll. more glabrous upwards, outer remarkably separated from 
the nearly equal inner ones.—H. denticulatum (Sm.) E. B. 2122. 
is now considered as a wood form of this——River sides in the 
north. P. VII. VIII. E. 8. 
23. H. strictum (Fr.); st. leafy, 1. sessile denticulate oblong 
acute narrowed to their base, hairs on underside of 1. bulbous- 
based, lowest 1. evanescent, uppermost rounded below, whitely 
stellately downy ped. and darkish inv. slightly setose and hairy, 
phyll. rather irregularly imbricate blunt, fr. dark fuscous.—H. 
denticulatum Bab.—Lowest 1. with a long narrowed base, not 
truly stalked; all oblong and acute. Heads thicker than in H. 
prenanthoides ; phyll. less irregular.—Scottish mountain glens. 
P. VII. VIII. 
** Tips of buds not ciliated. 
24. H. corymbosum (Fr.) ; st. very leafy corymbose or panieled 
at top, 1. ovate-lanceolate all sessile, upper ovate below }-clasping, 
