714 R. Pilger, 
vagina lata, striata, elabra (vagina foliorum ad basin culmi brevi, foliorum 
superiorum multo longiore, fere ad basin culmi decurrente), ligula elongata, 
truncata, glabra; panicula violaceo-tincta, coarctata, densiflora, ad 6 cm 
longa; ramis fasciculatis, rursus paniculatis; spicula uniflora; glumis 
vacuis 2 lanceolato-ovatis, inferiore latiore, 4 mm longis; gluma florente 
vacuis dimidio minore, ovata, tenuiter membranacea, arista dorsali media 
gluma abiente, gluma 2-plo longiore instructa; palea nulla. 
Ecuador: crescit in Paramos montis Antisana ad Cerro de la Media 
Luna, alt. s. m. 4400 m (coll. ecuad. n. 234). 
A. Stübelii Pilger n. sp. 
Culmo erecto; foliis lamina lineari, convoluta vel =Æ plana, striata, 
glabra, ad 19 cm longa, vagina striata, glabra, laxa, subtumida, ligula elon- 
gata, tenuiter membranacea, rotundata, apice denticulata, ad 5 mm longa; 
panicula stricta, conferta, 9—18 cm longa; ramis fasciculatis, rursus pani- 
culatis, erectis, infimis ad 7 em longis, satis paucifloris; spiculis + di- 
stantibus, unifloris; glumis vacuis 2 parum inaequalibus, lanceolatis, 
A-nerviis, 3—4 mm longis; gluma florente ovata, tenuiter membranacea, 
apice denticulata, tertiam glumarum vacuarum partem longitudine circiter 
aequante, arista media gluma abiente, glumam longe (3—4 mm) superante 
instructa; palea nulla. 
Columbia: In monte ignivomo Purace copiose, ubi usque ad cineris 
conum reperitur (coll. columb. n. 298); in monte ignivomo Tolima fere ad 
nivis limitem adscendens (coll. columb. n. 198). 
Trisetum confertum Pilger n. sp. 
Culmis pluribus floriferis, tenuibus, 50 em altis; foliis lamina tenui, 
angustissime lineari, plana, acuminata, subtus scabra, supra parce hirsuta 
(foliorum ad inferiorem culmi partem ad 20 cm longa neque plus quam 
2—3 mm lata); vagina angusta, striata, scabra (vagina supremi folii culmet 
latiore paniculam primo totam, demum paniculae basin amplectente), ligula 
elongata, truncata, glabra; panicula stricta, angusta, cylindrica, ad 13 em 
longa; rhachi scabra; ramis brevibus, fasciculatis, densifloris, rhachi ad- 
pressis; spiculis 2-floris, rhachilla supra florem superiorem in setam bre- 
vem, nudam producta; glumis vacuis 9 lanceolatis, acuminatis, pallide 
viridis, 5 mm longis, nervo unico prominente, scabro; rhachilla supra 
glumas vacuas pubescente; gluma florente vacuis multo breviore, Janceo- 
lata, apice dentibus 2 obtusis instructa, 3,5 mm longa, arista dorsali recta, 
sub media gluma abiente, glumam duplo superante instructa; palea tenuiter 
membranacea, apice 2-denticulata, 2,5 mm longa, nervis 2 scaberulis. 
Species panicula longa, conferta, gluma florente dentibus 2 obtusis instructa 
insignis. 
Ecuador: Crescit in provincia Imbabura ad Loma de Canaball 
locis vicinis, alt, s. m. 2400—2300 m (coll, ecuad. n. 152). 
a et 
