446 PATAGONIAN EXPEDITIONS I BOTANY. 



sessile, obscurely dentate. Sepals villous, with membranous margins. 

 Silicles villous, shorter than the pedicels, not torted. Style short, less than 

 i mm. 



Magellan Strait, and all Patagonia. D. saffordi Phil, got at Gregory 

 Bay, "was apparently established on diseased specimens." (Reiche.) 

 D. magellanica varies much, as to height, and stellate hairs of leaves and 

 stem. Coy Inlet (Peterson) ; Magellan (Hatcher) ; Fuegia (Dusen). 



DRABA MAGELLANICA GLABRATA Gilg. 



Stout ; silicles glabrous vi\\h. pedicels appressed to the rachis, supported 

 by long stellate hairs ; style long, persisting. 



N. Patagon., at Neuquen, in rocks at Valle Trolope, Neuquen. 



D. MAGELLANICA SUBGLABRATA Speg. 



Slender. Silicles at length glabrate. Stigma sessile. 

 S. Patagon., at Guadales near Rio Sehuen. 



15. D. MONANTHA Gilg. 



Cespitose perennial, forming cushions. Leaves close imbricate, rather 

 fleshy, oblong-linear,- acutish, glabrous or mostly ciliolate-margined. 

 Flowers solitary, shortly-pediceled. Sepals obovate, rounded, glabrous. 

 Petals twice as long, narrowed to a claw, toothed-lobed upwards. Sta- 

 mens very unequal. Ovary ovate, minute. 



Patagon., Sta. Cruz. 



D. monantha microphylla Gilg. 



S. Patagon., Valley of Upper Gallegos (Nordenskj.). 



1 6. D. PATAGONICA Phil. 



Stems several, leafy. Leaves rosulate, oblong, attenuate-petiolate, pin- 

 natifid, toothed, bright green, ciliate. Cauline leaves sessile, entire. 

 Raceme short, crowded. Silicles glabrous, oblong, 3-4 times as long as 

 the pedicels. Stigma sessile. 



N. Patagon., near Nahuel-huapi. 



17. D. SPEGAZZINIANA Dusen. (D. oligosperma Speg. non Hook.) 



Small, glabrous, densely cespitose. Leaves fasciculate-rosulate, narrow- 

 linear, entire, rather obtuse. Scapes long, naked below, above corymbed 



