VILFA ARUNDIXACE.V Tr. Diss. I. p. 15 7. 



Radix e rhizomate noduloso et stolonifero fibrae pubescentes-, 

 simpliciusculac , brunneo - nigrcscentcs. 



Culmus 2 - 3 - pcdalis, a radice subadscendcns, dein stricto- 

 erectus, teres, crassus, inanis, glabcr, simplex, nodis 

 3 sublinealibus, retusiusculis , nigresccntibus , sub panicula 

 pl. min. longe nudus, basi brunneo - squamatus. 



Vaginae ad basin usque fissue aut culraeae interdum infra con- 

 natae, arctiusculae, superne solutac , striatac, glabrae aut 

 vix asperiusculae, a basi eulmi (ubi infimae aphyllae squa- 

 mas elongatas rcferunt) sensim longiores : superiores inter- 

 nodio breviores. Ligula hyalino - membranacea, oblonga, 

 fere bilinealis, fissa et fimbriata, basi deusta- 



Folia plana, linearia, lineas 3 lata, acuta, deorsum asperius- 

 cula, saturate viridia, sensim longiora : infima brevissima 

 et quasi triangularia, ulteriora 1 - 2 - pollicaria, digitalia, 

 supremum spithamacum. 



Panicula spithamaea et minor, erecta aut apice paulo nntans, 

 contractiuscula et fere obtongo- linearis, multifiora, e sor- 

 dide viridi fuscescens aut rufescens. 



Axis teres, glaber, subaequus, inferne crassus, superne valde 

 attenuatus, sub 9 - parus. Radii semiverticillati , terni y 

 quaterni, pertenues, glabri, intermedii longiores, inferiores 

 a medio aut infra medium-, superiores a basi subdivis;. 

 Pedicelli scabriusculi. 



Locustae ultralineales, oblongae, aeutiusculae. 



Glumae tenui - chartaceae, lanceolatae, acutae, glabrae : infe- 

 rior uninervis (nervo tamen saepe obsoleto nec percurrente) 

 perianthio tertiam partem -, superior subtrinervis (nervis 

 lateralibus abbreviatis) eodem paulo brevior. 



