366 PATAGONIAN EXPEDITIONS I BOTANY. 



ii. ATRIPLEX UNDULATA Dietr. 



Branching shrub. Leaves short-petioled, coriaceous, oblong, obtuse, 

 emarginate, basi-attenuate, entire, wavy-crisped. Fniiting bracts minute, 

 rhomboid, obtuse ; their margin subsinuate ; their back coarsely tubercled. 



(Argentina) ; Patagonia. 



12. A. VULGATISSIMA Speg. 



Diczcioiis shrub, branching, unarmed. Leaves alternate, linear-elliptical, 

 mostly obtuse, cuneate-petiolate ; plane, thickish, membranaceou^ white 

 with a close indumentum. Theca of bracts sessile, mediocre, triangular- 

 obovate, cuneate downwards, apically rounded to 3-toothed, dorsally 

 smooth. 



Patagon., by R. Sta. Cruz, and Golfo de San Jorge ; at Puerto Madryn. 

 (Dusen.) 



7. HALOPEPLIS Bunge. 



Small herbs, mostly with knotted branches, and rounded, fleshy leaves, 

 opposite below, alternate above and embracing the stem. Oblong stro- 

 biles of perfect flowers, the perianth 4-angled, but 3-toothed ; in groups of 

 3, with spirally arranged bracts, which are un ! ted to each other, and to the 

 walls of their receptacle. Stamens 1-2, subsessile. Ovary pyriform, 

 stigmas 2. Utricle obovoid, compressed. Seed subreniform. 



Species 4, Mediterr. to Central Asia ; and the following : 



H. GILLESII Griseb. 



Branches slender, not jointed. Leaves cordate-rotundate, concavo- 

 convex, knot-like, imbricate in three rows along the ultimate branches. 

 Calyx 3-cleft. (Cetera desunt.) 



(Argentina) ; N. Patagon. 



H. PATAGONICA (Moq. Tand. sub Halostachys]. 



Stem suffruticose, ascending, inarticulate, branches herbaceous, alternate, 

 spreading-ascending. Leaves alternate, semiamplexicaul, appressed, ovate, 

 obtuse. Catkins alternate, shortly peduncled, cylindraceous, obtuse. 



Bahia Blanca ; near Rio Negro ; Peninsula Valdes. 



