146 CAROLUS SPEGAZZINI 



dio et aris(a r)()-00 mm )ong. = cum anthopodio sine arista 6-9 mm 

 long.=sine anthopodio ct arista 4-G mm long. =0,5-0, 85 mm diam.), 

 gUimelhi infera glaberrima non iiitente primo tenui laevi pallida, 

 dein flavida, postremo coriacella fuscidula non v. vix minutissime 

 subimperspicueque (sub leiite valida) papiliulosa, sursum longiu- 

 scule sensimriue attenuata, cum arista fere continua, deorsum lenis- 

 sime brevissimeque angustata; glumella supera anguste lineari (1,5-2 

 mm long.) acuta, enervi, hyalina; anthopodio terete gracili pallido 

 rigido acutissimo pro ratione longiusculo (1,5-2 mm long.=0,15 

 mm diam) densiuscule adpresseque albo-villoso, villis per dorsum 

 glumellae non v. parum excurrentibus. 



Arista tenuis v. subcrassiuscula persistens (40-75 mm long.) 

 nuda, dense minuteque papillato-scaberula, primo obsolete dein va- 

 lide 2-genicuIata, geniculo supero infra medium (parte recta supre- 

 ma reliquam inferam, flosculo addito, superante) infero ad terlium 

 V. quartum infimum sitis, sub geniculis valide torta; articulatio ari- 

 stae cum glumella plus minusve tenuiter annulato-noduliformis, 

 quandoque glaberrima quandoque minute adpresseque ciliolata. 



Corona nuUa. 



Varietates sequentes facile distinguendae: 



a) major Speg.: statura maxima, culmis post anthesin maxime 

 elongatis (900-1200 mm long.), flosculis 8-9 mm long. et aristis 

 65-80 mm long. tenuioribus. In planitie vigens. 



b) minor Speg.: statura parvula v. mediocri, culmis post antesin 

 parum elongafis (200-500 mm long.), spiculis minoribus glumis 10-15 

 mm long., flosculis 6-7 mm long. et aristis 40-50 mm long. cras- 

 sioribus rigidioribusque. In montuosis vegetans. 



Gramen ab incolis sub nomine Paja voladora distinctum, ani- 

 malibus pabulum parum gratum praebens, sed periculum magnum 

 incendii, praecipue secus vias ferreas constituens, ob inflorescentias 

 aridas secus margines vento accumulatas. 



