coMrosiT^. 173 



< This plant comes very near 11. melanocephalum, but the stem- 

 leaves are more developed, the lower ones generally nearly equal 

 in size to the radical ones ; the pericline is smaller, and blacker 

 from a greater number of the hairs being destitute of white points. 

 The florets are more glabrous on the back, and the styles duller 

 yellow. The plant is also of a lighter green. 



Slender Ilaiokweed. 



SPECIES VIII.— HIE R AC I UM GLOBOSTJM. Back. 



Plate DCCCXXIX. 



Back. Mon. Hier. p. 25. Bab. Man. Brit. Bot. ed. v. p. 201. Hook, .fe Am. Brit. Fl. 

 ed. viiL p. 220. 



Stem usually simple, very sparingly clothed -with stellate down 

 and black gland-tipped hairs, intermixed with long black-based 

 simple hairs. Ptadical leaves obovate or oblanceolate, " abruptly " 

 (Backhouse) or gradually attenuated into the petiole, obtuse ; the 

 inner ones narrower and sub-acute ; all denticulate or serrate- 

 dentate or entire, more rarely coarsely toothed, glabrous or nearly 

 so above, generally hairy beneath and on the margins ; stem- 

 leaves few, small, rarely 2 to 4 and large ; the lower ones oblan- 

 ceolate, attenuated into a j)etiole ; the upper one, or all, strap- 

 shaped-lanccolate, sessile. Anthodes solitary or rarely 2 to 4 in a 

 corymb, globose in bud. Pericline hemispherical, rounded at the 

 base. Phyllaries narrow, very acute, olive-black, densely clothed 

 with rather short black-based and black hairs, interspersed with 

 short black gland-tipped ones. Florets sub-glabrous, externally 

 glabrous, or slightly pilose at the tips. Styles bright-yellow. 

 Plant green or glaucous. 



On granite and felspar, at an elevation of 2,500 to 4,500 feet. 

 I have gathered it only on Cairntowl, but it occurs also on Ben- 

 na-main, Ben-na-muic-dhui, and the north side of Little Craigindal, 

 Braemar. 



Scotland. Perennial. Autumn. 



This plant comes very near H. gracilentum ; but the anthodes 

 are considerably larger, the phyllaries much narrower, longer, more 

 acute, and not so black ; the buds are more globose. I cannot iind 

 any tangible difference in the shape of the leaves, judging from 

 my specimens, which are authenticated by Mr. Backhouse. 



Globose-headed Hawkweed. 



