STIPEAE PLATENSES 147 



Specimina inspecta sunt: 



aj In campis prope Lago Nahuel-huapi Febr. 1898 (C. S.). 

 bj In pratis prope Bahia Blanea, Dec. 1899 (C. S.). 

 c/ In vallibus Sierra Veniana, Nov. 1895 (C. S.). 

 d/ In campis Tprope Sierra de Curdmaldl, Dec. 1899 et Nov. 1900 

 (C. S.). 



e/ In campis prope Dennehy, prov. B. Aires, Nov. 1898 (C. S.). 

 /7 In campis prope Rafino, prov. S. Fe, Jan. 1897 (C. S.). 

 g! In pratis prope Colonia Ceres, Jan. 1892 (OK.). 

 hj In pratis prope Monteoideo (J. Arechavaleta). 

 il In pratis Teka-ehoique, Chuhut, Dec. 1900. 



IX: NASSELLA Trin. 



Char. (TJumae flosculo longiores; flosculus ellipsoideus, clavula- 

 tus V. obovatus, plus minusve inaequilateralis et dorso gibbosulus, 

 e latere compressulus, glaber v. pubescens laevis v. scaber; glu- 

 mellae inferae margine altero externo alterum internum obtegente; 

 glumella supera + evoluta plana enervis v. obsolete nervosa; co- 

 rona nulla v. pusilla umboniformis; anthopodium acutum diametro 

 antero-postico flosculi semper brevius v. subaequilongum, glabrum 

 V. villosum; arista saepius leniter excentrica nuda persistens v. +ve 

 caduca. 



