238 MR. J. HALL OX THE FLOBA OF NOKTH PATAGONIA 



furnished panicle, others dwarfed, with a few nearly sessile spi- 

 cule. There are, however, intermediate forms, and it remains for 

 closer study to decide whether they should be united as varieties 

 of a single species. 



G-iWERiUM abgenteum, Nees ab JEsenb. Baliia Blanca and 

 North Patagonia (No. 28, G. C). The Spanish name for this 

 wide-spread species is Gortadera. 



Kojlkbia cbistata, Pers. Bahia Blanca, common (No. 10, 

 Gr. C). Doubtless introduced from Europe, but not included in 

 Berg's ' Enumerrtcion.' 



Ekaurostis megasxachya. Keel. Common about Bahia 

 Blanca (Nos. 16 and 26, Gr. C). Confined to the neighbourhood 

 of inhabited places and cultivated ground, and apparently intro- 

 duced. Called Gramilla. 



Eraorostis delicatula, Trin. Bahia Blanca and North 

 Patagonia (No. 18, G. C). This species affords good pasture in 

 the valleys. 



Melica macra, Nees ab Esenb. Common about Bahia Blanca 

 (No. 36, Cr. C.). This is called Pasto bravo, or wicked grass. It 

 is scarcely more than a variety of M. papilionacea, L. 



Melica violacea, Cac. Very common at Bahia Blanca and 

 through North Patagonia (No. 15, G. C). The Araucanians call 

 this Nahuel catschu, probably because the puma is supposed to 

 crouch in the thick of it. 



Distichus maeixima, ijV//'., = Brizopyrum spicatuin, Hook. 6f 

 Am. Sandy and salt soil at Bahia Blanca ; in North Patagonia 

 and at Ajo (No. 233, Or. C). Called Gramilla de Salitral. 



Briza Lamarckiana, Nees ab .£V<?«J., = Cha8colytrum subaris- 

 iatum, Desv. Bahia Blanca, on the plateaux (No. 13, Gr. C). 



Poa alopeclrus, Kunth. Widely spread from Entrerios 

 through Buenos Ayres to North Patagonia (No. 31, G. C). 

 Araucanian name Fueo catschu. 



Poa laniuera, Nees ab Esenb. Bahia Blanca (No 32, Gr. C). 



Poa dexudaxa, Steud. Bahia Blanca (No. 33, G. C). 



Poa denvjuta, Steud., var. minor. Bahia Blanca (No. 34, 

 G. C). 



