STIPEAE PLATRNSES 13 



flosculi diametrum 3--4-plo superans, dense adpresseque rufo-villo- 

 sum; arista persistens 7-8-i)lo Hosculo longior parum supra et in- 

 fra mcdium geniculata. Culmi 1'olia planiusrula v. laxe, convoluta 

 subherbacea laevia longe superantes; panicula sat ampla relaxata, 

 nuda V. vaginatn nutans. 



ll'jb. \\\ coUinis propo i\Joiiirri'/cn non rara (.1. Arecha,valcta) et 

 in Sierra del Tandil , Fcbr. 1892 ac Jan . 1901 (C. S,). 



Obs . Percnnis caespitosula , caespitibus mediocribus (150-200 

 mm alt . et diam.) laxissimis. 



Calmi folia semper longe superantes (500-1000 mm alt.=:l-2 

 mni diam . ' teretes, glabri non scabri, longitrorsum tenuiter stria- 

 ti , remote 2-3-foliati, nodis incrassatulis medio annulatim con- 

 strictulis, non v. vix rufesccntibus glabris . 



i'o//« omnia isomorpha, herbncea llaccida v. subrigidula, viri- 

 dia, limbis planiusculis (in sicco, culmigenis praecipue, plus 

 minusve laxc convolutis) erectis (100-150 mm long. = 1,5-2 mm 

 lat. ) utrimciuc glaberrimis non scabris, dorso laevibus, ventre 3-7- 

 nervosis (nervo mediano ccteris crassiore) apice sensim attenuato- 

 subulatis acutis non pungentibus, vaginis inhmis relaxatis, superis 

 adpressis tenuiter striatis , glabris, ore angustatis auriculis non 

 barbatis cum ligulis (radicalibus brevissimis obsoletis v. margini- 

 formibus,) ovatis v. lanceolatis obtusis integris glaberrimis scario- 

 sulis pallescentibus opacis continuis. 



Infiorescentla paniculala , valdc relaxata secunda, primo vagina 

 folii supremi vestita, dein nuda exerta nutans (150-200 mmlong.), 

 rachi glabra laevi (parte suprema excepta) ramis gracilibus angu- 

 losis non v. vix scabriusculis, pedicellis elongatis (5-15 mmlong. ) 

 tenuibus scabris apicem versus vix incrassatulis. 



