MACLOSKIE: REVISION OF FLORA PATAGONICA. 295 



T. TARAXACUM ALPINUM (Koch) Porter. 



I have not seen any of the specimens collected by Hatcher. Macloskie's 

 descriptions of this species, as well as of the others, are altogether too in- 

 complete to permit the drawing of any conclusion. I think, however, 

 that this N. American form does not occur in the peraustral part of S. 

 America, and, very probably, Macloskie's statement of this form's having 

 been found in our district is based on an obscure determination. Dubious ; 

 should in my opinion be struck out. D. 



T. MAGELLANICUM Comm.; Sch. Bip. var. LT>BATUM Dahlst., 1. c., p. 6. 

 S. Patagonia, central part of Territorium of Sta. Cruz and near Lago 

 Argentine ; Magellan ; Punta Arenas. 



T. THUSIOCARPUM Dahlst, 1. c., p. 15. 

 S. Patagonia, in the district of Ultima Esperanza. 



Add Macl., p. 902 : 



T. (LEONTODON) HISPIDUM Linn. 



Leaves radical, oblong-lanceolate, basiattenuate, sinuate-dentate, with 

 hispid hairs, apically forked. Scape as long, bractless. Scales of invo- 

 lucre hirtellate. Achenes muricellate. 



Dry parts of mountains of Europe. 



Add Macl., p. 902 : 



SONCHUS ARVENSIS Linn. 



According to Spegazzini, in S. Patagonia, by Rio Chico, and in Mid- 

 Patagonia by Rio Chubut. Perennial, with creeping rootstocks; heads 

 bright yellow ; achenes transversely wrinkled. Introduced. 



TROXIMON Nutt. (as Agoseris in Macl., p. 902). 



T. AUSTRALIS (Phil.). 



Unknown to me; probably identical with Troximon pumilum (Gaud.). 

 D. 



T. GLAUCUM Nutt. 



I do not know of any evidence that the plant has been found north of 

 Magellan Strait. D. 



