856 PATAGONIAN EXPEDITIONS I BOTANY. 



crowded at the base. Floriferous branches fastigiate. Pedicels naked, 

 subequal. Involucral scales 12, immersed in wool. Achenes glabrous. 

 W. Patagon., valley of Rio Palena. 



70. SENECIO PATAGONICUS Hook. & Arn. (=S. microcephahis DC.). 

 S. patagoniciis Phil. = S. sericeo-nitens. 



71. S. PINNATUS Poir. 



Corymb few-headed. Stem terete, branching, the leaves crowded to the 

 tops, sessile, pinnatipartite ; their lobes linear-mucronate, some entire, 

 others trifid. Pedicels bracteolate. Invohicral-spales 10-12, nearly equal- 

 ling the disk. Ligules 7-9 ; disk-flowers 20. Achenes glabrous. 



(Brazil; Argentina); N. Patagon.; Tschalin. 



S. PINNATUS GLANDULOSUS. 



Dense glandular-pubescence upwards on the branches and leaves. 



72. S. PCEPPIGII Hook. & Arn. (S. micropifolius monocephalus DC.) 

 Flower-heads solitary. Low, multiceps, all hoary-tomentose. Stems 

 basally leafy; apically scapiform. Leaves oblong, subspatulate, obtuse, 

 ending in a black point, laxly imbricate, entire, revolute-margined. Pe- 

 duncle bracteate. Involucre campanulate, acute at base, calyculus with 16 

 leaflets, densely tomentose, subulate, with black sphacelate tops. 

 Patagon., by Moreno. 



73. S. POLYPHYLLUS G. Kuntze. 



Heads solitary on branches, leafless above. Undershrub, ascending, 

 altogether puberulo-hirtellous. Leaves linear, entire, obtuse, margin 

 subrevolute ; the highest remote, few, bract-like. Involucre cylindraceous, 

 as long as the disk, subnude at base, the scales about 15, subacute, spar- 

 ingly ustulate at apex. Ligules 7-9, oblong ; disk-flowers 15-20. Achenes 

 glabrous. 



(Chili, at elevations in Andes); S. Patagon., by Hatcher (as in the 

 Gray Herbarium, but with thicker leaves. Near >S. sericeiis ne<zi}. 



74. S. PSAMMOPHILUS Griseb. 



Corymb with 3-7 discoid heads. Shrub snowy-tomentose, with leafy 

 branches 20 cm. long. Leaves linear, sessile, rounded-obtuse above, 

 i-2-crenate-pinnatifid or entire; lobes rounded. Heads 2O-flowered. 



