9O4 PATAGONIAN EXPEDITIONS: BOTANY. 



64. Leaves oblanceolate, and 1-2 cauline narrow. 



c. Heads sulphur-colored. Involucre hirsute, its scales acuminate. magellanicum. 



c2. Heads mediocre. Involucral scales linear, hoary. chubutense. 



A2. Scape simple, i -headed. Leaves oblong to spatulate. Plant all pubescent, pilosella. 

 AT,. Scape i-headed, sometimes also a small second. Leaves oblong-spatulate, few-lobed ; and 



some linear on scape. Achenes smooth. antarcticum. 



A^. Stem few-leaved, i-4-headed. Radical leaves obovate to spatulate, smooth. Involucre 

 with black wool. triste. 



I. HlERACIUM ANTARCTICUM d'UrV. 



Pubescent. . Scape slender, 10 cm. high, with few, linear leaves, and a 

 solitary head, less than i cm. high, and still narrower, occasionally with a 

 second, smaller head. Calyculus none. Basal leaves oblong-spatulate, 

 with few, obscure lobes near the base, obtuse or acutish, nearly glabrate. 

 Achenes oblong, truncate, smooth, flattened. Pappus unequal. 



S. Patagon., by Cape Fairweather; by Hatcher in the Cordilleras, on 

 damp ground; S. Fuegia, alpine (Nordenskj.) ; Falklands. 



2. H. CHILENSE Less. 



Stems 30 cm. high, spreading-hirsute, erect, paniculately branching, 

 8-i8-flowered, the branches short, divaricate. Leaves oblong-spatulate, 

 briefly attenuate-petioled, obtuse, entire or few-toothed, with long, rigid 

 hairs on both surfaces. Cauline leaves few, narrowing upwards. Hairs 

 long, rigid, white, with a black base, having clavate glands between. 

 Heads small, i cm. 



(Chili) ; Fuegia, Navarin I. 



3- H. CHUBUTENSE Speg. 



Leaves mostly all radical, oblanceolate, entire, with long, scaberulous, 

 white or rufescent hairs. Stem arising from center of leaves, erect, sub- 

 striate, remotely i-2-leaved, glabrous; above the middle, laxly corymbose, 

 the branchlets bracteolate and subdichotomous. Pedicels i -headed, hoary. 

 Heads erect, mediocre. Involucral scales about i -seriate, linear, dorsally 

 hoary, slightly shorter than the disk. 



Chubut, amid grassy rocks at Teka-choique. 



4. H. MAGELLANICUM C. H. Schultz. 



Perennial, over 20 cm. high, with basal leaves. Stem a span high, 

 scapiform, hirsute; with 1-2 bracts, narrowly linear, 2 cm. long. Leaves 

 rosular, 10 cm. by 12 mm., oblanceolate, sinuate-dentate, or entire, gla- 



