MACLOSKIE: COMPOSITE. 869 



PROUSTIA PUNGENS ILICIFOLIA (H. & A.) DC. 

 Leaves oblong, with a broad base, sinuate-dentate, petiolate. 

 (Chili ; Argentina) ; N. Patagon. 



69. MUTISIA Linn. 



Erect or climbing shrubs, with alternate leaves (sometimes pinnate and 

 with cirrhi), and large or long radiate heads, terminating the branches. 

 Involucral scales many-seriate, imbricate, broad. Corollas of the ray i- 

 2-labiate, of the disk cleft towards the center. Anthers long-tailed. Style 

 filiform, minutely 2-lobed. Achenes glabrous. Pappus i -seriate, of rigid, 

 plumose bristles. 



(Fig. in Eng. & Prantl, iv, 5, p. 344.) 



Species 60, in warm parts of S. Amer. 



Species with pinnate leaves are in hot regions ; others are extratropical, 

 or in mountains. 



KEY TO THE SPECIES. 

 A. Procumbent, with hoary, angular branches. Leaves lanceolate to ovate-oblong, subcordately 



amplexicaul. Involucral scales appendaged. oligodon. 



A2. Erect. 



b. Leaves ovate, glaucous, amplexicaul, toothed-spinose. Heads coarse. glauca. 



b2. Leaves cordate-amplexicaul, toothed-spinose. Involucral scales long-appendaged. Ligules 

 short. brachyantha. 



b$. Tall ; peduncles long, I -headed. 



c. Leaves ovate, truncate to retuse, glabrous. moyanoi. 



c2. Leaves ellipitical, subtruncate, glabrous above, tomentose underneath, pulchella. 

 A$. Climbing. 



b. Leaves semi-runcinate-pinnatifid, partly decurrent. Tendril trifid. Involucral scales 



appendaged. retrorsa. 



b2. Wingless. Leaves glabrous with a simple tendril. 



c. Involucral scales not appendaged. Leaves elliptical. Peduncle I -headed. 



chubutensis. 



C2. Involucral scales appendaged. Leaves cordate, spinose-toothed. ilicifolia. 



1$. Subalate. Leaves lanceolate-linear, subdecurrent. 



c. Leaves spinose-toothed, with simple tendril. Heads large ; involucral scales ap- 

 pendaged. subspinosa. 

 C2. Leaves subentire, ending in a bifid tendril. 



d. Involucral scales appendaged. decurrens. 



d2. Involucral scales not appendaged. patagonica. 



I. M. BRACHYANTHA Phil. 



Very glabrous. Stem broadly winged, the wing coarsely toothed. 

 Leaves cordate-amplexicaul, oblong, coarsely spinose-toothed, ending in 



