400 PATAGONIAN EXPEDITIONS I BOTANY. 



3. CALTHA SAGITTATA Cav. 



Rhizome creeping. Leaves long-petioled, fleshy, sagittate, auriculate, 

 inflexed upwards. Sepals 6-10, exceeding the 10 stamens. Follicles 25. 

 (Allied to C. palustris L.). 



(Chili) ; W. Patagon. ; Magellan ; over all Fuegia to Cape Horn ; Falk- 

 lands ; by Rio Sta. Cruz to Lago Argentine. These are of a latifoliar 

 form, having flowers on long, thick scapes, and suborbicular leaves. 

 (Speg.) 



2. ANEMONE Linn. 



Erect, with an involucre of leaves on the stem, near to, or remote from 

 the flower or flowers. Petals none. Sepals 4-20, petaloid. Achenes 

 capitate. 



Species 75, in temperate and cold climates. 



KEY TO THE SPECIES. 

 A. Ovary glabrous. 



b. Involucre having 2-3 lobed or toothed leaves. (Chili.) antucensis. 



bz. Involucre having 3, much-divided leaves. hepaticcefolia. 

 A2. Ovary very pubescent. 



b. Sepals 5 ; flowers 2-4. lanigera. 

 b2. Sepals 5-8; flowers solitary, or 2-3. 



c. Radical leaves 3-5 partite ; the lobes linear or cuneate. decapetala. 



c2. Radical leaves multipartite, with narrow lobes. mullifida. 



b$. Sepals 10-12, leaves triternately divided. triternata. 



i. A. DECAPETALA Audouin. 



Hairy or somewhat silky, 20-45 cm - m g n - Root tuberous. Leaves 3- 

 5-partite ; their segments linear or cuneate, incised or multifid. Pedicels 

 1-3, one naked, the others involucellate. Sepals 5-10. Receptacle glo- 

 bose, at length cylindraceous. Achenes woolly, with lateral, filiform style 

 (Fig. 67). 



(From the Arctic Circle by the E. U. S. and by the Rocky Mts. to Peru, 

 Chile, Brazil, Argentina) ; Patagon., on pampas by Coy Inlet. (O. A. 

 Peterson; by Rio Negro, near Carmen de Patagones. "In flower, Nov. 

 13, 1896, 'yellowish white.' Stems about 20 cm. high, and petioles 

 somewhat woolly.") 



A. DECAPETALA PATAGONICA O. Ktze. 



Scape and petioles hirsute, with long, spreading hairs. 

 Chubut, and S. Patagon. 



