MACLOSKIE: COMPOSITE. 891 



simply i -headed. Involucre i-2-seriate. Ray-flowers exceeding the disk, 

 with no chaff between the outer flowers. 



S. Patagon., by Lago Argentine ; E. Fuegia (Dusen). 



14. LASORRHIZA PURPUREA (DC. sub Chabrcea ; H. & A. sub Leuceria]. 



Stemless, with woolly base, scape and petioles. Leaves pinnatisect, 

 their segments about 7 pairs, distant, 3-lobed. Scape i -headed. Ray of 

 ligulate purple flowers. 



N. and E. Fuegia, Magellan., Patagon., by Hatcher in valley of Rio Sta. 

 Cruz, January 16. "Chiefly in the steppe-region." (See L. lanata.} 



15. L. SCROBICULATA (DC. sub ChabrcBo]. 



Stemless, green and woolly. Leaves deeply pinnatifid, their lobes 3- 

 lobulated, decussate-imbricate. Scape nearly naked, i -headed ; it and 

 involucre laxly woolly. Flowers nearly white to deep pink. 



(Chili); S. Patagon., in valley of Rio Sta. Cruz, 100 miles (160 km.) 

 above its mouth. 



1 6. L. STRICTA (Phil, sub Leuceria.'] 



Perennial ; stem strict, hirtellous, with very short, glandular hairs. 

 Leaves above green, subglabrous, underneath webby-tomentose and 

 hoary ; radical leaves . . . ; lower, cauline leaves oblong-linear in outline, 

 pinnatifid, with narrow segments, long-acuminate, entire or few-toothed, 

 basally much narrowed, with small, semi-amplexicaul auricles ; auricle of 

 upper leaves broader than the rest of the leaf, generally orbicular and 

 spiny-toothed ; uppermost leaves minute, consisting of a very broad 

 auricle and a tip. Branches of corymb i-2-flowered. Involucral scales 

 very lax, 12 mm. long, their apex glabrous. Ligules blue (?), with their 

 tube 15 mm. long. Head broad, 28 mm. diam. 



W. Patagon., by Rio Palena; corymbs with 10-12 heads. Chubut, 

 "My specimens have more heads in the corymb, the heads smaller and 

 the stems thicker; approaching L. magna (?)," Speg. 



17. L. SUAVEOLENS (DC. sub Chabrcza}. 



Very woolly. Stem simple, leafy, i -headed. Leaves pinnately parted, 

 the lower petiolate, the upper sessile and semi-amplexicaul ; their lobes 

 subrotund, entire. Heads large, 35 mm. in diameter, long-rayed. Involu- 



