MACLOSKIE : OXALIDACE/E. 



541 



Leaves about a dozen, arising fasciculately from the top of the rhizome ; 

 leaflets 8-12, conduplicate, emarginate, obcordate, all glabrous, but finely 

 scrobiculate when dry. Pedicels as long as the slender petioles, 7 cm., 

 glabrous, i -flowered with a pair of ovate, hairy-margined bracts near the 

 top. Sepals lanceolate or a little broader, glabrous. Cetera ? 

 S. Patagonia, at Cerro Toro. 



10. OXALIS MAGELLANICA Forst. 



Stemless, with thick, scaly rootsfock, 5 cm. long, and radical trifoliolate, 

 stipulate leaves, petioles 12 mm. long. Leaflets round-cordate, 6 mm. 

 long, fleshy, paler beneath. Scape strong, as long as the petioles, 

 2-bracteolate beneath the flowers. Sepals broad-oblong, retuse, one third 

 shorter than the white petals. 



Small ; allied to O. acetosella. 



Magellan ; Fuegia ; Cape Tres Montes, at 600 meters elevation. Also 

 in New Zealand. 



11. O. NAHUEL-HUAPIENSIS Speg. 



Stem creeping, thick, fleshy, woolly. Cortex thick, with lax scales; 

 these linear-triangular, produced into fine, leafless petioles. New branch- 

 lets from the axils of the scales are fasciculately leafy, with long, slender 

 petioles, and leaflets 3, deeply cordate, bilobed ; their lobes broad, obtuse, 

 thick, glabrous. Numerous 2-flowered peduncles. Flowers rather small, 

 glabrous. 



N. Patagon., shady rocks by Lago Nahuel-huapi. 



12. O. PATAGONICA Speg. 



Stemless. RJiizome creeping, densely clothed below with thick golden 

 scales, above with acute, linear, fuscescent bracts. Leaves radical, long- 

 petioled, apically 10-14 divided; the leaflets parted to their base, plicate, 

 obovate, subfalcate, densely and appressedly tomentose. Scapes scarcely 

 equalling the petioles, with a* solitary, large, rose to whitish-blue 

 flower. 



S. Patagon., in sandy hills near Rio Sta. Cruz (Speg. & O. A. Peter- 

 son); by Rio Gallegos and in Sierra de los Baguales. "Is it O. squamoso- 

 radicosa Steud., with non-woody root scales or a more villous form of O. 

 enneaphylla Cav. ?" (Speg.) 



