MACLOSKIE : COMPOSITE. 833 



MELALEMA HUMIFUSUM Hook. f. 

 Prostrate, emitting long fibers ; with leafy branches. 

 Fuegia, on mountain top near Blossom Bay. 



54. CULCITIUM Humb. & Bonp. 



Perennial herbs, with radical or alternate, usually entire leaves; and 

 mediocre or large, yellow, monogamous, discoid heads. Invohicre broad, 

 its scales many-seriate, smaller outwards. Receptacle naked. Anthers 

 basally entire or subentire. Style-branches truncate, pencilled. Ac hems 

 oblong-linear, many-striate, glabrous. Papptis-seta copious. 



Species 14, Andine. (Fig. in Eng. & Prantl, iv, p. 292.) 



i. C. MAGELLANICUM Homb. & Jacq. 



Entirely silky-tomentose. Leaves radical, linear-lanceolate or narrower, 

 long, acute, appressed-hairy, the margins revolute. Scapes with .1 head : 

 the involucre woolly. 



S. Patagon., Gregory Bay, Magellan ; by Hatcher at Cabo Negro, Jan. 

 13; chiefly in the steppes; Fuegia, Ushuaia, Navarin I. 



2. C. SESSILE Speg. 



Pulvinate-cespitose, 5-10 cm. high, 20 cm. broad, appressed-sil very- 

 silky. Leaves crowded, linear, entire, revolute-margined ; their apex 

 attenuate, acute, with a setula ; their base subattenuate and spreading to 

 a villous periclad. Heads solitary on the branches, sessile amid the leaves, 

 campanulate, erect. Involucral scales woolly, shorter than the disk. 

 Corolla ochroleucous. Stigmas ferruginous. 



Patagon., by Golfo de San Jorge. 



55. SENECIO Linn. Groundsel. 



Plants of varying habit, usually herbs, in temperate climates. Heads 

 radiate (or sometimes rayless). Involucral scales i-2-seriate, erect, sub- 

 equal, or with small, outer bracteoles. Receptacle naked. Anthers basi- 

 obtuse, or nearly so. Style-branches often spreading, truncate, pencilled. 

 Achenes 5-io-costate. Pappus-setce copious, fine, entire to barbellate. 



Species 1,200, cosmopolitan ; with great variety as to size of heads, etc. 

 (S. jacobcea L. is the troublesome ragweed of Britain, not the American 

 ragweed; S. vnlgans L. is the British groundsel, the favorite of the 



