454 



the midrib and margin ; panicled branched, with three to eight co- 

 rymbose heads ; pedicels arcuate, ascending, and with the broad- 

 based involucres covered with black hairs and setae, but without white, 

 stellate down ; phyllaries cuspidate, irregularly imbricated, black in 

 the centre, with decided, light-green margins ; heads cylindrical ; 

 flowers bright yellow ; fruit cylindrical, deeply striated, narrowed be- 

 low ; pappus dirty white ; hairs unequal. Distinguished from H. 

 murorum by the absence of white, stellate pubescence, and the pre- 

 sence of numerous black hairs on the involucres and pedicels, by the 

 woody root, smaller and more numerous heads of flowers, broad- 

 based involucres, and the smaller and more serrated leaves ; from H. 

 Cffisium, F7'., by its scape-like and frequently leafless stem, by the 

 absence of white, stellate pubescence, and the presence of numerous 

 setae on the involucres and phyllaries, and by its cuspidate phyllaries, 

 with decided, green margins. My specimens were gathered on the 

 rocks at Falcon Glints, the rocky bank of Widdy-bank Fell, fronting 

 the Tees, on the Durham side, where Yorkshire, Durham, and West- 

 moi'eland meet. I have not seen or heard of it from any other loca- 

 lity in Britain, though it possibly may be found not uncommonly when 

 better known. Its near ally, H. caesium />., is well known to British 

 botanists as H. murorum, under which name, along with the true plant 

 of Linneus, it is described by nearly all our authors, and is figured in 

 ' English Botany,' 2082. 



" Hieracium ccesiiim, Fr. Herb ca^sio-glaucous ; rootstock woody ; 

 stem leafy, slightly hairy ; stem-leaves one to four, the lowest stalked, 

 ovate, toothed, the upper lanceolate, entire ; root-leaves many, cor- 

 date-ovate, lanceolate, green and slightly hairy above, green or 

 glaucous, with more numerous hairs below ; panicle branched, corym- 

 bose ; heads numerous ; pedicels elongated and, along with the invo- 

 lucres, covered with thick, white, stellate down, numerous black hairs, 

 and fewer setae ; phyllaries irregularly imbricated, narroAving gradually, 

 bluntish, uniform, black or lighter towards the margin ; heads small, 

 cylindrical ; flowers deep yellow ; fruit cylindrical, slightly broader 

 near the base, narrowing above and below ; pappus dusky white ; 

 hairs unequal. Distinguished from H. murorum by its caesious invo- 

 lucres and pedicels, with numerous black hairs, by its thick, woody 

 root, and more numerous stem-leaves, which therefore cause the stem 

 not to bear any resemblance to a scape, as in that species, and by its 

 smaller heads, and blunt, not cuspidate, phyllaries, which do not ex- 

 ceed the opening flowers; from the very variable H. sylvaticum by 

 its more caesious involucres and pedicels, with numerous hairs and 



