364 PATAGONIAN EXPEDITIONS I BOTANY. 



anthers ; bracts of female flowers hoary, obovate, membranaceous, united 

 to the apex, their upper margin subtruncate, obsoletely 3-dentate; disk 

 slender, smooth. Seed not seen. 



Dry stony places between San Julian and Rio Deseado. Root vertical, 



10-15 cm - l n g- 



3. ATRIPLEX HORTENSIS Linn. 



Monoecious ; the radicle inferior, sublateral. Stem erect, angulate, branch- 

 ing. Leaves alternate, petiolate, ascending, hastate-deltoid, to triangular- 

 oblong, green both surfaces ; upper leaves ovate-lanceolate, obtuse, 

 mucronulate. Bracts ovate or round-ovate, not appendaged, reticulately 

 venous. 



(Asia and cult.) ; escaped in Chubut. 



4. A. LAMPA Gill. (A. ceratophylla O. Ktze.) 



Stem fruticose, erect, subangulate, substriate, branching much, the 

 branches unarmed. Leaves alternate, subpetiolate, divaricate, oblong- 

 attenuate downwards, obtuse, deeply sinuate-dentate, thickish, subcoria- 

 ceous, crispate-revolute, lepidote-hoary. Theca of the bracts very shortly 

 stalked, ovate-rhomboid or subcordate, obtuse, the margin sinuate-den- 

 ticulate, not appendaged by a disc, obsoletely reticulate nerved. 



(Near Mendoza) ; by Rio Chubut, and Lago Nahuel-huapi. "Radicle 

 of the cyclic embryo superior. Atriplex lampa O. Ktze., non Gill, is a 

 widely different species." (Speg.) 



5. A. MACROSTYLA Speg. 



(Obione.} Dioecious perennial, all lepidote argenteous, low, with woody 

 caudex, densely many-branched at its crown ; the branches slender, terete, 

 erect or prostrate, simple or sparsely subbranching, leafy. Leaves crowded 

 or lax, alternate or subopposite, small, thickish but flaccid, occasion- 

 ally suborbicular or elliptical, obtuse, entire, very shortly petiolate or 

 sessile. Flowers densely congested in apical or axillary glomerules; 

 the males comparatively large, ferruginous-lepidote ; the females canes- 

 cent-woolly, with very large exsert styles. Theca of bracts obdeltoid, 

 hoary below, rounded-truncate and obsoletely tridentate above ; long 

 time bearing the exsert styles ; at first compressed on the smooth disc, 

 afterwards inflated, and more or less callous and 2-crested. 



" Not rare in sandy salines by Rio Chico and Rio Deseado. Allied 

 to, if not identical with, A. reichei Dusen." (Speg.) 



