136 PATAGONIAN EXPEDITIONS I BOTANY. 



C. ramosissima Steud., identical with C. flaccida Cham. & Schlecht., 

 which occurs in Chili, perhaps also in Patagon., according to Spegazzini ; 

 not mentioned in Schulz's monograph of Cardamine. 



P. 435 : C. callitrichoides Speg. is to be transferred to C. valdiviana 

 Phil, as a variety; and C. nana Barn, to C. chilensis DC. as a variety. 

 And some new species are to be added. Dr. Dusen has furnished the 

 following new enumeration of the Patagonian and Fuegian species of 

 this genus, based on O. E. Schulz, Monographic der Gattung Cardamine, 

 in Engler's Bot. Jahrb., 32 (1907), and on Gilg & Muschler, Aufzahlung 

 aller zur Zeit bekannten sudamerikanischen Cruciferen, in Engler's Bot. 

 Jahrb., 42 (1909), referring chiefly to the former of these papers. 



i. CARDAMINE CHILENSIS DC. 



Leaves trisect, hairy above, the segments subpetiolate, ovate-lanceolate, 

 crenate. Stem subascending ; petals oblong, white, longer than calyx. 

 Silique linear, glabrous, slender ; its apex resembling the continued silique. 



Var. angustifolia O. E. Schultz. 



Central and South Chili; W. Patagon., by Rio Aysen. 



2. C. CHILENSIS DC. var. NANA (Barn.). 



(Described p. 437, No. 9.) 



Syn. Cardamine nana Barn. 



C. HIRSUTA Hook., non Linn, and C. HIRSUTA MAGELLANICA (Ph.) 

 Probably identical with C. glacialis (Forst.) DC. 



C. CHILENSIS var. ANGUSTIFOLIA O. E. Schulz. 

 W. Patagon., Rio Aysen; Central and S. Chili. 



3. C. CORDATA Barn. 



Hairy perennial, simple, erect, 10-20 cm. high. Petioles 3-5 cm. 

 Leaves simple, orbicular, angular-dentate, sometimes a pair of leaflets 

 on the petiole. Peduncles 5-10 mm.; petals 7 mm., twice as long as 

 sepals. Racemes short, siliques erect, seeds bordered. 



Cordillera of Central and S. Chili; Mid Patagon., near Lago Buenos 

 Aires. 



