BRITISH HIEUACIA. 47 



description of Kooh, our plant seems to agree exactly, as also with 

 the description of H. einerascens of Grenier and Godron. Specimens 

 of the latter kindly furnished me by Professor Grenier appear to 

 be identical,* as also others collected by myself near Gudvangen in 

 Norway. 



17. H. GIBSONI. Glaucous green. Stem wiry, simple or forked, 

 leafless, with few heads, sub-glabrous. Root-leaves broadly 

 ovate, oltuse, apieulate, rather truncate at the base, den- 

 ticulate, glabrous above, pilose at or near the margins, 

 with slender petioles. Feduncles hifld, straight, Imolueres 

 truncate at the lase, floccose, with few hairs, Phyllaries 

 Iroad, oltuse. Florets glabrous. Styles yellow. 



H. Jiypocheroides. Samuel Gibson, in Phytol. v. I. p. 907. 



S. hypoehericUs. Hook and Am. Ed. 7, p. 222. 



H. casium var. hypochmridis. Eries, Sym. p. 113. 



S. caesium fi hypochceridoides. Bab. Man. Ed. 3, p. 196. 



Mountain limestone districts of the north-west of Yorkshire. 

 Abimdant among debris at the foot of Giggleswick and Gordale 

 Scars, near Settle. 



Elowers in 7th and 8th months. 



Plant 6 to 18 inches high (usually about 12 inches), with 

 few heads of medium size. Boot woody at the neck, with 

 numerous strong fibres. Stem erect, rigid, wiry, slightly hairy 

 when young, ultimately glabrous; frequently purplish red es- 

 pecially in the lower part; leafless and (usually) simple with 

 2 heads ; or once forked, each branch bearing 2 heads. Leaves 

 ovate or oblong, obtuse and apieulate ; denticulate, with glandular 



* The British and French plants are also regarded as identical by Grenier. 



