33 2 PATAGONIAN EXPEDITIONS I BOTANY. 



S. and W. Patagonia; Magellan. Fuegia to Cape Horn. 

 ("One of Anson's ships had its crew cured of scurvy by nettle-tops at 

 the west part of Magellan Strait; 1742.") 



4. URTICA SPATULATA Smith. 



Stem erect or ascending, to 30 cm. high. Glabrous between the 

 stinging hairs. Leaves small, rotundate, basi-cuneate, incised, with lan- 

 ceolate, acute teeth ; petiole exceeding the limb ; stipules interpetiolar. 

 Clusters crowded, shorter than the petioles. The larger segments of the 

 fruiting calyx unarmed. 



S. Brazil ; common about Bahia Blanca, and probably in N. Patagon. 



5. U. URENS Linn. 



Annual. Stem stout, 40 cm. tall, stinging-bristly, leafy to the top. 



Leaves thin, nearly glabrous, elliptic-ovate, deeply incised or biserrate, 

 3-5-nerved, all slender-petioled. Spikes in pairs, oblong, subsimple, 

 shorter than the petioles. Achenes granulate. 



(Eur., nat. in N. Amer., fig. in Brit. & Br. i, 532.) 



N. Patagon., in cultivated places near Carmen de Patagones. Magel- 

 lan, introd. ; Fuegia, at Ushuaia, rare. 



2. ADICEA Raf. (1815). (Pilea Lindl, 1821). Clearweed. 



Monoecious or dioecious, with axillary cymes and not stinging. Male 

 flowers 4-merous, rarely 2-3-merous, with rudimentary ovary ; female 

 flowers unequally 3-merous, with staminal rudiments. Leaves opposite, 

 stipules connate into a single interpetiolar stipule. Bracts small, rarely a 

 few larger. 



Species 150, most in trop. Amer. 



A. ELLIPTICA (Hook. f. sub Pilea]. 



Stem low, sparsely branching. Leaves long-stalked, membranaceous, 

 elliptical, subobtuse, coarsely crenate-serrate, 3-nerved ; pubescence 

 minute-appressed (due to raphides). Male flowers in a long-stalked, 

 capitate umbel ; female flowers glomerate, sessile. Achene orbicular, 

 compressed, obliquely emarginate. 



Chonos Archip. 



