MACLOSKIE: REVISION OF FLORA PATAGONICA. 143 



2. O. HATCHERIANA Gilg et Muschler comb. nov. 



Syn. Draba hatcheriana Gilg, described p. 444, no. n, fig. 6, PL XVIII. 



Found at Coy Inlet, also by Rio Fosiles in the mountains at about 

 1,500 m. 



3. O. OLIGOSPERMA (Speg.) Gilg et Muschler comb. nov. 



Syn. Draba oligospenna Speg.; Draba spegazziniana Dusen 



(described p. 446). 



Found also at Coy Inlet, Patagonia. 



N. Patagon., Territory of Neuquen, Lago Nahuel-huapi ; Mid-Patagon., 

 by Rio Carren-leofu, Rio Corcovado, and near Lago Paz; S. Patag., in 

 the mountains along Rio Fosiles (about 1,500 m.). 



3. O. SPEGAZZINIANA Gilg et Muschler comb. nov. 

 Syn. Draba graminifolia Speg., described p. 444. 



S. Patagonia, in the mountains at Karr-Aike by Lago Argentine ; Rio 

 F6siles, in the mountains about 1,500 m. 



P. 447 : Sophia cumingiana, and nearly all the species included under 

 the same genus in Macloskie's arrangement, are now placed under the 

 genus Descurainea (Webb & Barth, 1836). 



It is doubtful whether all these are independent species, or whether, as 

 suggested by Spegazzini, some of them only represent different forms or 

 varieties of a few species. 



The new arrangement is here presented : 



1. D. canescens (Nutt.) Prantl. sub Sophia pinnata (Walt.) Brit, 

 described p. 449, no. 7, with the distribution. 



2. D. cumingiana (Fisch. & Mey.) Prantl., instead of Sophia cumtngtana, 

 or Sisymbrium cumingianum, described p. 447, no. i. 



Chili ; S. Patagon., Lago Argentine, fide Spegazzini. 



3. D. deserticola (Speg.) instead of Sophia deserticola (Speg. sub 

 Sisymbrium Gilg et Musch., described p. 448, no. 2. 



Mid-Patagon., near Puerto Rawson; S. Patagon.; between S. Julian 

 and Rio Deseado. 



4. D. glabrescens (Speg.) Dus. instead of Sophia glabrescens Speg., 

 described p. 448, no. 3, with the distribution. 



