534 PATAGONIAN EXPEDITIONS I BOTANY. 



6. GERANIUM DISSECTUM Linn. (G. patagonicum Hook, f.) 



Erect annual, with white spreading hairs. Leaves long-petiolate, 

 orbicular, 5-y-partite, and the parts 3-5-cleft. Petioles and pedicels 

 retrorsely hispid. Peduncles 2-flowered. Petals emarginate, nearly as 

 long as the awn-bearing calyx, purple. Seeds reticulate. 



N. Patagon., common about Bahia Blanca, called " alfilerillo," as is 

 Erodinm. (J. Ball.) S. Patagon., by Puerto Deseado ; Magellan. (Eu- 

 rasia ; Australia.) 



G. DISSECTUM PATAGONICUM Hook. 



Differs from the type by having a perennial root ; spreading villosity 

 of all parts ; lobes of leaves less narrow and deep ; carpels more glabrous. 

 S. Patagon., common everywhere ; Chubut, Tekachoique. 



7. G. INTERMEDIUM Bert. 



Stem erect, branching, striate, subvillous. Leaves very long-petiolate, 

 basally truncate, rather glabrous, 5-lobed, their lobes trifid, with rounded, 

 mucronulate segments. Petals entire, equalling the short-awned, villous 

 calyx. Carpels glabrous. 



(Chili) ; N. Patagon., by Rio Negro. 



8. G. MAGELLANICUM Hook. f. 



Stem erect (?), branching upwards, hirsute with retrorse hairs. Stem- 

 leaves hairy, long-petiolate, orbicular, 5-partite, the parts cuneate, 3-5- 

 cleft, the segments linear-oblong, obtuse and apiculate. Peduncles long. 

 Flowers large, with silky, acute, awned sepals. Petals obovate-cuneate, 

 notched, thrice as long as the sepals. Ovaries silky. 



Patagon., near Rawson ; W. Patagon. ; Magellan ; Fuegia, E. and W., 

 and at Ushuaia. (Dusen.) 



9. G. MELANOPOTAMICUM Speg. 



(Columbinmn.} Perennial, subglabrous. Rhizome thick, with long, 

 slender branches. Leaves opposite, finely and long-petiolate ; semiorbicu- 

 lar, basitruncate, 3~5-partite ; the lateral segments bifid, the median trifid, 

 lobes oblanceolate, deeply 3-cleft at apex, above minutely appressed, sub- 

 puberulous, underneath glabrous, except the rough nerves. Flowers 



