662 PATAGONIAN EXPEDITIONS I BOTANY. 



GENTIANA PATAGONICA DARWINII Griseb. 

 Corolla rotate, 5-partite. 

 Magellan, J. D. Hooker can hardly consider it even a variety. 



G. PATAGONICA GRACILIS Alboff. 



More slender, less branching, with membranaceous leaves; few- to 

 i -flowered, low. 



Patagon.; E. and S. Fuegia, Valley of Olivaia; Navarin I.; "Also a 

 low, i-flowered form, scarcely 6 cm. high," at Olivaia. 



3. G. PROSTRATA Hacnke. 



Annual. Stem loosely branching at the base. Branches i -flowered. 

 Leaves oval-spatulate, recurved-obtuse, muticous, smooth-margined. 

 Calyx-teeth 5, erect, ovate-lanceolate, acutish, shorter than the slightly 

 enlarged corolla-tube. Corolla blue, its tube twice as long as its ovate 

 lobes; its folds often half as long as the lobes. Style short. Capsule 

 oblong, rounded above the basal stipe. 



(Mountains of Eurasia; Arctic regions and Rocky Mts.); Magellan. 

 Sometimes very small, 12 mm. high to 20 cm.; in S. part of the Fuegian 

 steppe. (Dusen.) 



"A most extraordinary range; in Southern Europe the Carinthian 

 Alps, 6,000-7,000 feet high; in Asia on the Altai Mts., N. Lat. 52; in 

 the Rocky Mts. at 52 N., to the height of 15,000-16,000 feet; on the 

 East side of the Andes of South America at 35 S.; and at Sea-level at 

 Cape Negro and Magellan ; and in Behring Strait, Lat. 68% N." ( J. 

 D. Hooker.) 



4. G. SEDIFOLIA H. B. & K. 



Perennial. Stems cespitose, subramose, the fertile i -flowered. Leaves 

 lanceolate, acute, muticous, the margin smooth, equal. Flowers 5-mer- 

 ous. Calyx-leaves lanceolate, acuminate, equalling the gradually enlarg- 

 ing corolla-tube. Corolla funnel-form, blue, its lobes oblong, half as long 

 as its tube, its folds rounded equalling the lobes. Capsule ovate-oblong, 

 stipitate. 



Andes of Peru, above 1,000 meters elevation. 



G. SEDIFOLIA MICRANTHA Wedd. 



S. Fuegia, Ushuaia. 



