MACLOSKIE : CRUCIFER/F.. 453 



3. BRAYA PATAGONICA Speg. 



Branches short, erect, crowded. Leaves rather small, ovate, obtuse, 

 all similar. Silicle mediocre, broad-elliptical. Peduncle slightly surpass- 

 ing the highest leaves. 



Patagon. On dry table-land at Karr-aike, by Lago Argentina. 



4. B. PECTINATA Speg. 

 Cespitose-crovvded, compact, forming hemispherical cushions. Leaves 



rather large, ovate-linear, acutish, dorsally convex, not or obsoletely sub- 

 carinate, their margins pectinate-ciliate, all isomorphous. Flowers apical, 

 solitary, subsessile ; sepals green, subgibbous at base ; petals white. Sili- 

 cles unknown. 



S. Patagon., in rocks near Ultima Esperanza. 



5. B. PUSILLA A. Gray. 



The root sends up simple shoots, with radical spatulate, linear leaves, 

 somewhat fleshy, hispid or ciliate on the margins. Stem-leaves scanty or 

 none. Raceme 5-6-flowered. Siliques linear or linear-oblanceolate, 

 twice as long as the pedicel, about 8 seeds in each cell. Styles very short. 



Patagon. Cordilleras, in deep snow. J. B. Hatcher in S. Patagon. (? ) 



6. B. PYCNOPHYLLOIDES Speg. 



Dense ; the branches short, erect. Leaves very small, triangular-ovate, 

 the cauline smaller and silvery ; the subfloral broader, pale. Flowers 

 solitary, terminal, on short pedicels ; girdled by a cup of leaves. Silicles 

 rather small, obovate-lanceolate. 



Patagon., in dry precipices at Orr-Aike, near Lago Viedma. 



22. HESPERIS Linn. 



Erect, perennial or biennial herbs, with forked hairs, simple leaves and 

 large racemose, purple or white flowers. Stigma with 2 erect lobes. 

 Siliqj{es elongated, nearly cylindric, with i -nerved valves. Seeds in i row 

 in each cell, wingless. Cotyledons incumbent. 



Species 20, Eurasiatic. 



H. MAGELLANICA (Pers. sub Brassica ; Hook. f. sub Sisymbrium] O. Ktze. 



Erect, branching above. Leaves ovate-oblong, acute, pinnately lobed, 



attenuate-petiolate, the lobes sinuate-dentate, acute. Racemes corymbose, 



