124 



lAKOLUS .SPEG.\/./IM 



Arisla tenuis fuscescens porsistcns (2(1-32 nim long.) nuda vix 

 scabriuscula, 2-geniculata, goniculo inforo ad quintum posticum, 

 supcro sat infra mcdium siti.s, i^arte suprema rccla aristae reliriuam 

 inferam, flosculo addilo, paulo supcrantc. Articuialio glumellao cum 

 arista coronula cincta. 



Corona pusilla albcscons o cylindracco suliturljinata , marginc 

 callosa obtusiuscula non v. obsoletc subciliolata. 



34. iStipa aiifolia Noes. 



Stipa fUifuUa Nees ab Esonb., Agrust. bras., 

 p. 37'J (1829). = Arcch., Las gram. urug. p. 2G2, 

 n. G (18'J4)! = OK., Rcv. gen. plant. III, 2, 

 p. 371 (1898)! 



l)'i<i[l. ('>!un!a(' liii(';iri-lanc('olalai' llusoulo sub- 

 duplo longioros, l-sul)-3-norves, hyalinao; llo- 

 sculus subfiisoidous obsolete subpilosulus; coruna 

 nulla; aiitliopodium llosculi diamotro subdiii^lo 

 longius, albo-villosum; arisla porsistons 7-9-plu 

 flosoulo loiigior, inh'a medium obsolote genicu- 

 lata. Culnii folia capillacea scabiida aequantcs v. 



paruni superantos; paiiicula angustissime linearis scmper compac- 



tissima subiuida. 



.11. Stipa filifulia Ncos 

 ft. Spicula ' , 



b. Flosciilus ' , 



c. Flosculus '', , 



Ilab. In eolliiiis saxosis prope Montcrideo (J. Arechavalcta) et 

 in Sierra del Tandil Dec. 1891 (OK.), noc iion in Sierra de Bai- 

 carce, Jan. 1894 (C. S.). 



Obs. Perennis dense caespitosa, cacspitibus majusculis (350-600 

 mm alt. = 150-350 mm diam.). 



Calnii fulia acquantos v. superantes (4(X)-S00 mm alt.=l-2 mm 



