438 PATAGONIAN EXPEDITIONS! BOTANY. 



and coarsely toothed, and repand-toothed. Flowers racemosely spicate, 

 mediocre, white. Siliques divaricately erect, glabrous, as long as their 

 pedicel. Style rather long. 

 S. Patagon., by Rio Sta. Cruz. 



ii. CARDAMINE PYGM^EA Dusen. 



Very low, stemless, glabrous. Leaves subrosulate, about 8, long- 

 petiolate, mostly pinnatifid, segments 3 pairs, fleshy, thick-margined. 

 F Racemes few- (4-7-) flowered, white ; rather large flowers. 



Sepals oval, scarious-margined. Petals twice as long, spat- 

 ulate. Siliqites patent, as long as the pedicel ; stigma sessile. 

 E. Fuegia. (Dusen.) (Fig. 72.) 



12. C. RAMOSISSIMA Steud. 



Plant hairy rooting from the base of the stem. Radical and 

 lower leaves pinnate, 3 pairs, and a larger terminal leaflet, 

 cuneate-oblong, tridentate ; upper leaves ternate, with linear 

 leaflets. Raceme long. Petals 6 mm. long, white with a 

 (after violet center. Sepals half as long. Siliques erect, 25 by 2 

 mm., twice as long as the pedicels, attenuate to the style 

 and minute stigma. 



(Araucania) ; Patagon., by Carren-leofu, and Rio Sta. Cruz. 



13. C ROSTRATA Griseb. 



Smooth, branching perennial, with long-petioled leaves, entire or cordate- 

 orbicular, toothed. Racemes lax. Siliques erect, spreading, compressed, 

 4 times as long as the pedicels, attenuate to a filiform style, subobtuse, 

 6 mm. long. 



Chubut, by Carren-leofu; W. Patagon., by Rio Aysen. 



C. ROSTRATA DICHONDROIDES Speg. 



Leaves firm, glaucous, not pellucid, entire, often minutely ciliolate. 

 (Sterile peat as of Dichondra repens Forst.) 



14. C. STRICTULA Steud. 



Rhizome sublignescent, fibrilliferous. Stems cespitose, or solitary, 

 strict, to 30 cm. pubescent. Leaves pinnate, 6-8, pinnae various, the 



