OZ BBITISH HIEKACIA. 



11. H. SENESCElfS. Green. Stem simple with few leaves 

 and few heads on slender ascending peduncles. Boot- 

 leaves elliptic lanceolate, denticulate or remotely and 

 evenly dentate, hairy, stalked. Stem-haves linear-lanceolate, 

 narrowed into slender petioles. Involucres ovate at the 

 base, densely clothed with black-based hairs and setae. 

 Phyllariei incumbent, attenuate, acuminate, floccose at the 

 points. Florets shortly pilose at the tips. 



H. atratum v. ramulosum. !Fries, Symb. p. 105. ? 



Grassy elopes and rocky margins of streamlets on the south- 

 eastern side of Canlochen Glen, Forfarshire. Head of Glen CaUater, 

 Braemar. Ben Voirlioh. Mael Ghyrdy, Breadalbane. 



Plowers in 7th and 8th months. 



Plant 15 to 18 inches high, with rather large heads. Boot 

 slender, rather woody, with few fibres. Stem erect, more or less 

 rigid, with 1 or few leaves, or sometimes leafless but with 1 or 

 more foliaceous bracts j glabrous or slightly hairy below, and 

 with scattered blactish hairs, a little stellate down and numerous 

 setse above j simple and with few (usually 3) heads on slender 

 ascending elongated peduncles. Leaves green, with scattered 

 hairs on both sides. Boot-leaves elliptic-lanceolate, or lanceolate, 

 acute, or obtuse and apiculate, denticulate or with remote glan- 

 dular teeth of equal size, entire towards both extremities ; original 

 leaves broader, rounded ; all narrowed rather suddenly into slender 

 hairy petioles. Stem-leaves linear-lanceolate or linear, more or 

 less elongated, entire or (rarely) denticulate, acute, narrowed 

 gradually into slender petioles or sub-sessile. Peduncles 

 very slender, thickened upwards, dark with short blackish 

 hairs and setse, slightly floccose ; lower one straight and usually 

 near the middle of the stem, with a leaf at its base; the 

 other near the top, frequently arcuate, and extending beyond 

 the primary head, supported by a (sometimes foliaceous) bract. 



