8l6 PATAGONIAN EXPEDITIONS: BOTANY. 



3. GNAPHALIUM AXILLARE Remy. 



Erect, subsimple; stem and leaves hoary. Basal leaves spatulate, 

 mucronulate ; cauline linear-mucronulate, non-decurrent ; the lowest bear- 

 ing in their axils a spike of heads. Spike short-peduncled, long and inter- 

 rupted, compound. Involucre ovate-oblong, the outer scales oval, acute ; 

 the inner oblong-linear, green at base, yellowish and obtuse at apex. 



S. Patagon., by Dusn at Puerto Madryn; Golfo de San Jorge. 



. 4. G. CHEIRANTHIFOLIUM Lam. 



The erect,' simple, herbaceous stem and the leaves on both surfaces hoary- 

 woolly. Leaves decurrent, linear-lanceolate, acute, undulate-crisp, floral 

 branches panicled. Heads terminally crowded, semiglobose-campanulate. 

 Involucral scales scarious, shining, pale yellow, oblong-linear, scarcely 

 acute. (Central flowers hermaphrodite.) 



(Montevideo, etc.) ; S. Patagon., by Rio Sta. Cruz. 



5. G. CITRINUM Hook. & Arn. (= cheiranthifolium fide Ind. Kew.). 



Herbaceous, erect, tomentose. Leaves very decurrent, linear-lanceo- 

 late, acute, velvety above, white-tomentose underneath. Corymbs termi- 

 nal ; heads crowded, ovate-campanulate. Invohicral scales oblong, obtuse, 

 citrinous, shining. 



(Chili); Patagon., Golfo de San Jorge; Magellan. 



6. G. FALCATUM Lam. 



White-woolly, with many simple stems arising from the base. Radical 

 leaves subspatulate, obtuse, straight; cauline crowded, falcate-arcuate. 

 Heads sessile in the upper axils, and crowded in a spike. Invohicral 

 scales linear, glabrous, red-tipped. 



Magellan. 



7- G. FILAGINEUM DC. 



Villous-hoary, erect, ascending, herbaceous annual. Leaves sessile, 

 linear to linear-lanceolate, acute, villous-hoary both surfaces. Spike leafy, 

 terminal, interrupted. Glomerules crowded at the axils, much shorter 

 than the leaf. Involucral scales lanceolate, acute, purplish. 



(Brazil) ; Patagon., along Rio Negro and Rio Chico de la Sta. Cruz. 



