872 PATAGONIAN EXPEDITIONS I BOTANY. 



ovate, not appendaged, but the innermost marginally hairy-ciliate. Ligides 

 twice as long as the involucre. 

 Chubut, in preandine shrubberies. 



IO. MUTISIA RETRORSA Cav. 



Stem climbing, terete, winged by the decurrent leaf-traces. Leaves 

 lance-linear, plane, entire ("semi-runcinate-pinnatifid," O. Ktze.), the lower 

 few-toothed at their base, with their nerve ending in a bifid cirrhus. In- 

 volucre ovate ; its scales appressed-ovate, appendiculate, obtuse. 



(S. Chili, in mountain meadows); Patagon. ("Cirrhus simple," as in 

 DC. Prodr. is erroneous. O. Ktze.) 



M. RETRORSA LATIFOLIA O. Ktze. 



Leaves broader, ovate (less one-third), pinnatifid. 



Patagon. 



ii. M. SUBSPINOSA Cav. 



Stem climbing, terete, subalate. Leaves sessile, basally decurrent, 

 lanceolate-linear, spinose-toothed, glabrous ; the midnerve produced to a 

 simple cirrhus. Involucre cylindrical, its scales appendaged. Heads 

 large, with golden ligules. 



(Peru; Chili) ; Patagon. (Moreno and Tonini). 



70. BRACHYCLADOS Don. 



Rigid, branching shrub, with alternate, linear, entire leaves, their margins 

 sometimes revolute ; and rather large, peduncled, terminal, solitary heads 

 on the branches. Ray- and disk-flowers fertile, mostly yellow. Involucre 

 broad, its scales many-seriate, imbricate. Anthers long-tailed. Styles 

 obtuse, slightly 2-lobed. Achenes 5-ribbed, glandular. Pappus-setce 

 several-seriate, copious. 



Species 6, Patagon. and Argentina. 



i. B. INVOLUTUS O. Ktze. 



Tall, with glabrescent, striate branches. Leaves solitary, or in sets of 

 24, puberulent, subfalcate, i cm. by 2 mm.; sessile, acute both ways, 

 one side more canaliculate. Peduncles 3 cm.; heads solitary, 2 cm. long 

 and broad. Ray-flowers 1 2 ; disk-flowers 20. Involucral scales 3~4-seri- 

 ate, externally tomentose, except the nerve; inner scales 15 by 3 mm., 

 outer scales gradually shorter and revolute. 



Patagon. (M. and T.). 



