AND THE ADJOINING TERRITORY. 239 



*Glyoeria FLUITAN8, H. Br. Tuyu &c, in province of Buenos 

 Ay res ; also in Eatrerios (No. 230, G. C). Introduced, but per- 

 haps not by the agency of man. 



Eestuca bromoides, auct. (i?iclmo Munro), non L. Very 

 common at Bahia Blanca (No. 29, G. C). Doubtless introduced 

 from Europe. 



Bromus unioloiues, II. B. K. (Ceratochloa, auct). Com- 

 mon in tbe province of Buenos Ayres and about Babia Blanca 

 (No8. 21 and 27, the latter a small form, G. C). The Arau- 

 canians call this grass Lancu, and formerly used the pounded 

 seeds as food. M. Claraz supposes this to be an introduced 

 species ; but it is widely spread as au indigenous plant in South 

 America, and appears to have been long known to the Indians, 

 therefore probably indigenous. 



Lolium peren>e, Z. Bahia Blanca ; a common ruderal plant 

 (No. 17, G. C). Introduced from Europe, but now widely 

 spread in South America. The larger specimens represent the 

 variety brasilianum of Nees, with the rhachis scabrous and the 

 fertile glumes setiferous. 



Hordeum pratexse, L. Bahia Blanca, very common (No. 28, 

 G. C). 



Horde um jubatum, L. Bahia Blanca and elsewhere (No. 226, 

 G. C). This has a very wide range, from the x\rctic coast of 

 North-west America to the Strait of Magellan. It is said to 

 afford good herbage for cattle. 



FlLICES. 



The following five species, along with Adiantum cuneatum, 

 of which I have seen a specimen, were collected by M. Claraz in 

 the mountains of Tandil and La Yentana ; but no other ferns 

 were observed by him during his very numerous excursions in 

 the interior: — 



Cassibeera triphvlla, Kaulf. (No. 5, G. C) 



Bell^ea ternifolia, Fee. (No. 1, G. C.) 



Cheilanthes micropteris, Sic. (No. 4, G. C) Also seen in 

 Patagonia. 



Buschke hastaitm, Willd. (No. 3, G.C.) Also seen in 

 Patagonia. 



