COMPOSITiE. 17.) 



Stem 3 to 18 inches high. Primary radical leaves ovate-spathu- 

 late, rather blunt ; the inner ones narrower, more attenuated at 

 the base, and acute ; all generally dentate and frequently with 

 some of the teeth, especially those towards the base, much length- 

 ened, very acute, pointing or curving forwards. Petioles and base 

 of tlie stem woolly with long white hairs. Anthodes very large 

 Avhen solitary, smaller when 2 or 3 together. Pericline very 

 black, frequently without any of the hairs white at the apex. 



The monocephalous forms of this species present considerable 

 resemblance to H. melanocephalum, II. gracilentum, and H. glo- 

 bosum ; but the leaves have generally much longer and more 

 irregular teeth ; the petioles and base of the stem are more clothed 

 with white woolly hairs ; the phyllaries are much more slender, 

 and destitute of the silky appearance which those species present ; 

 they are often destitute of any white - tipped hairs. The poly- 

 ccphalous forms are much more common in H. chrysanthum than 

 in II. gracilentum and H. globosum, and do not occur in H. melano- 

 cephalum. 



Golden-flowered Sawkweed. 



SPECIES X.— HIE R AC I UM NIGRESCENS. Willd. 



Plate DCCCXXXII. 



Back. Mon. Hier. p. 28. Bab. Man. Brit. Bot. ed. v. p. 202. Hook. & Am. Biit. FL 

 ed. viii. p. 221. Fries, Epic. p. 44. 



Stem simple or corymbosely branched at the apex, more or less 

 clothed with stellate down and black gland-tipped hairs, occa- 

 sionally intermingled with black or black-based simple hairs, and 

 below with wliite simple hairs. Radical leaves sub-coriaceous, oval 

 or elliptical, rather suddenly (or the inner ones gradually) con- 

 tracted into hairy petioles, acute, coarsely and irregularly dentate- 

 serrate, sub-glabrous or hairy ; stem generally with 1, more rarely 

 2, small strapshaped leaves, sometimes bract-like ; the lower one 

 attenuated at the base, much smaller than the radical leaves. 

 Anthodes solitary, or more often with 2 or more in a corymb, 

 and occasionally branches beneath it also terminated by anthodes. 

 Pericline ovate at the base. Phyllaries broad, acute, outer ones 

 obtuse, all nearly black, thickly clothed with short black and 

 black-based hairs, intermixed with gland-tipped ones and small 

 yellowish glands. Florets sub-glabrous externally, slightly pilose 

 at the tips. Styles olive-brown. Plant green. 



On highland mountains, at an elevation of 2,000 to 3,000 feet, 

 on granite, mica-slate, hornblende, &c. ; but I have never gathered 



