AND THE ADJOINING TERRITORY. 233 



Chenopodium ambrosioides, L. Everywhere about Bahia 

 Blanca &c. (No. 40, G. C.). Commonly called Paico hembra. 



Chenopodium ambrosioides, L., var. ? Common at Bahia 

 Blanca and elsewhere (No. 41, G. C). This is sent as a different 

 plant from the last, and said to be called Paico macho ; but it 

 appears to be no more than one of the numerous varieties of that 

 protean species. 



Atriplex pamparitm, Griseb. Near Cabo S. Antonio (No. 16G, 

 0-. C). I suspect that this must be ranked as a variety of 

 A. patagonica. 



Atriplex Lampa, Gill, var. angustifolia ? Valley of the 

 Upper Limay (No. 99, G. C). This is very possibly an unde- 

 scribed species of the Section Obione, and certainly allied to 

 A. Lampa, Gill. My specimen represents the male plant only. 

 The whole plant is hoary white, very much branched, the male 

 flowers in little spherical or egg-shaped heads. 



Heterostaciivs Eittneriana, TTng.Sternb. ? Salt-marshes at 



Bahia Blanca (No. 1 80, G. C). The Araucanian name is Tschilpe. 



' The specimen is incomplete ; and in this very difficult group I 



feel no certainty. This may possibly belong to the closely allied 



Spirostachys patagonica, Hook. fil. 



Saltcornia fruticosa, L., var. peruviana. Salt-marshes of 

 the Rio Colorado (No. 183, G. C). The native name for this and 

 several other succulent plants growing in salt-marshes is Gume. 



Poltgonacej:. 



Rumex magellanicus, Griseb. In the valleys of all the rivers 

 and principal streams draiuing North Patagonia (No. 128, G. C). 

 The inflorescence is of a rich purple-red hue. The Indian name 

 is CalcatrSo. Though a well-marked form, this seems to be 

 closely allied to B. cuneifolius, Campd. 



Rumex pbatensis, Mert. S{ Koch. Valley of the Rio Negro, 

 North Patagonia (No. 160, G. C). Perhaps introduced from 

 Europe ? 



Rumex conglomerate, Murr. At Tuyu and Ajo (No. 231, 

 G. C). I suppose that this must be ranked among the forms of 

 the cosmopolitan M. sanguineus, L. 



Polygonum camporum, Mcisn., var. australe. At Tuyu 

 (No. 223, G. C). 



