142 PATAGONIAN EXPEDITIONS: BOTANY. 



stem woody, thick, branching, sending up many floriferous stalks, leafy at 

 top. Leaves crowded at base, above distant, thick, and rather large, ser- 

 rate, incised. Flowers somewhat large, crowded in a dense raceme. 

 Nectariferous glands form a ring. Fruits oblong, attenuate below, apic- 

 ally clinging to a cylindric style. Stigma cushion-like, bilobed, valves 

 very convex, hard, with a raised median nerve, and thick placentiferous 

 margins. 



S. KARRAIKENSIS (Speg.) Gilg & Muschler. 



Syn. Draba karmikensis Speg. Description p. 445, no. 13. 



In South Patagonia, central part of the territory of Sta. Cruz ; by Rio 

 Sta. Cruz on saline sandy clay ; by Rio Leona (between Lago Argentine 

 and Lago Viedma); and on saline sandy clay in the low mountains. A 

 very variable species, divided by Spegazzini into three varieties, which, 

 according to Gilg and Muschler, are rather to be considered as only 

 forms, magna, media, minima; in fruit January. D. 



Add Macl., p. 447 : 



ONURIS Phil. 



Crucifers, near Draba, like a small form of Hutchinsia; but the septum 

 is as in Draba. The opening of the strong-nerved valves and the short, 

 not-lobed style, separate it from Draba. Found in the mountains of S. 

 Amer. Perennial herbs with thick, many-headed rhizome, and branches 

 bearing many very dense heads of leaves, which are grass-like. Flowers 

 white, in racemes, on a naked, scape-like peduncle ; bracts linear, usually 

 with the lower flowers. Nectariferous glands form a ring. Fruit ovate 

 or narrower, attenuate to a style, stigma slightly 2-lobed ; valves convex, 

 hard, the septum hyaline, mostly entire, or at maturity often vanishing as 

 in Draba. Seeds, i or 2, or rarely 4 or 5 in the cells, on a short funicle. 

 Cotyledons usually accumbent. 



i. O. REICHEI Gilg & Muschler. 



Leaves linear, entire, acute, narrowing downwards and sessile, 15 mm. 

 long. Stems scape-like, gray, hairy. Flowers forming a dense sub- 

 globose white mass, without bracts. Sepals obovate, rounded; margin 

 hyaline; petals larger than sepals, 2 mm. long, sublanceolate, apically 

 rounded. Ovary ovate, Chili (is it in Patagon.?). 



