58 CAROLUS .SI'EC..\Z/.IN'l 



a) minor .Speg.: glumis modiocribu.s (17-22 mm long. •; flosculis 

 in parte supera plus minusve glabratis (8-!J imn loiig.); arista basi 

 nuda (23-36 mm long.). Cubnis folia, basi praefoiii.s deslituta 

 vaginis omnino glabris donata, longe superantibus. Vulgata propc 

 Mcndoza ( Pampa Boques, Paramillo de Uspailata, Puentc del 

 Inca) Jan. 1895 et Febr . 1901 (C. S.). 



b) major Speg.: glumis maximis (liO- lo uim Inng.); flosculis 

 totis pubescentibus (l-i-lG mm iong.); arista a basi villosa (r)0-70 

 mm long.). Culmis folia, basi praefoliis villosis praedita vaginis 

 pulverulentis suffulta, non v. vix superantibus . Vulgala propc Lago 

 Nahuel-huapi (E. Fernandez), Jan. et in Valle Trolope, Neuquen 

 ( Otto Asp ) , Febr . IIXK) . 



IV. STEPHANOSTIPA Speg. 



Char. Glumae fiosculo non v. +ve longiores; flosculus teres 

 v. angulosus, glaber v. villosus, lacvis v. asper, gluniellac infe- 

 rac margine altero externo alterum internum obtegente; glumclla 

 supera parva v. pusiUa plana cncrvi; corona eximia bcne evoluta a 

 glumclla basi constrictione +ve profunda perfecte limitata, spallia- 

 cea, cylindracea, cupuliformis, callosa v. membranacea; anthopo- 

 dium validum teres acutum diametrum flosculi saepius pluriea su- 

 perans, villosum. 



11. iStipa h.yaliua Nees 



Stipa hyalina Nees, Agrost. bras., p. 378 

 (1829). 



Diag . Glumae anguste lanccolatae, flosculum 

 sat supcrantes, 1-3-ncrves hyalinae; flosculus 

 sublanccolatus tenuilcr scabrido-papillosus; co- 

 * '' rona c cylindraceo turbinata pallida, eximie a 



11. Stipa hyalina Nees 



o. spiouiav, glumclla distincta, acic ciliolata; anthopodium 



b. Floscalus '/i „ 



c. Fioscuius •/, diametrum flosculi acquans v. parum supcrans; 



