45O PATAGONIAN EXPEDITIONS I BOTANY. 



* 



sepals. Silique longer, to 44 mm., slightly arched ; valves with a nerve 

 and its ramifications. Stigma sessile. Seeds i -seriate. 



(Atacama Province) ; through central and andine Patagonia. Greatly 

 varying. The following forms are given : 



(a) andina ; green, mostly glaucescent, glabrous. S. Patagon. 



(6) ciliata, leaves glabrous, but margin ciliated. Golfo de San Jorge. 



(c] communis ; basal leaves dentate-subruncinate ; cauline subentire. 

 Flowers few. At Sta. Cruz. 



(d] exauricnlata, leaves without auricles. Near Rio Chico. 



(e] glauca. Herbaceous, tall, glabrate. Basal leaves oblanceolate, 

 angulate-repand ; cauline linear, entire. By Rio Gallegos. 



(f] latifolia ; pale green, mostly glaucescent glabrous, lower leaves 

 pinnately lobed, the cauline with broad, fleshy auricles. Lago Blanco 

 and Rio Aysen. 



(g] normalis; hairs stellate ; plant obscurely green, not succulent. 

 S. Patagon. 



(k) pubescens ; intensely green, lowest leaves glabrous, upper subto- 

 mentose, not ciliated, all the hairs stellate. Valle Hermoso. 



(/) purpiirascens ; woody and rigid. Lower leaves acutely sinuate- 

 toothed, purplish underneath. Patagon., by Rio Chico de la Sta. Cruz. 



9. SOPHIA SUBSCANDENS Speg. 



Some meters high ; stems weak, subscandent, glabrous, nodose". 

 Leaves fascicled at the nodes, subspatulate, coarsely and sparingly pin- 

 nate-lobed ; the margin or also the under surface pilose with forked hairs. 

 Inflorescence few-flowered. Siliques vermicular, very long, divaricate, 

 briefly pediceled ; their apex attenuate-stigmatose. 



N. Patagon., in shrubberies near Carmen de Patagones. Root white ; 

 nodes, 30-40 cm. long, many-headed at top. Climbing branches, 80- 

 150 cm., slender. Flowers unknown. 



10. S. TENUISSIMA (Phil, sub Sisymbriuni}. 



Annual, with erect stem to 30 cm. tall ; and short, glandular-hirtellous 

 hairs. Leaves hoary, tripinnatifid, the segments short, obtuse, narrow. 

 Peduncles capillary ; racemes lax. Flowers minute, yellow ; petals 

 scarcely exsert from the calyx ; style slender, shorter than the narrow 

 silique. Pubescence glandular on the stem, stellate on the leaves, calyx 

 and fruit. 



