380 MONOCOTYLEDONEE. ANDROPOGON. 
plane v. subcomplicate, rigidule, subtus glaucescentes v. utrinque 
virides, glaberrimse v. innovationum fimbriate, margine scaberulz, 
cósta media subtus acuta, crassiuscula, supra non albolineata per- 
curse. Spathz propri: anguste, 5—6 em. longe, obtuse et ssepius 
laminz rudimento mucronatz. Racemi crassiusculi, 5—7 cm. longi, 
glaberrimi, virides; articuli erassi (apice 1,6—1,9 mm. lati), spiculam 
latitudine superantes, ima basi pilis brevissimis pareisque stipati. Spi- 
culz sessiles lineari-lanceolatz, pallide flavo-virentes, glabræ v. callo 
ipsa basi brevissime pilosulo : gluma I"* cartilagineo-coriacea, a '/, 
inferiore sensim angustata, acutissima, superne leviter extus curvata, 
apice minute v. obsolete bidentieulata, marginibus angustissime 
inflexis, carinis scaberrimis, dorso lzvis; II“ T^» subzequans, membra- 
nacea, lanceolata, carina lævis, magine hyalino sepius ciliolata ; III" 
quam I™ '/, brevior, lanceolata, acuta, subbinervis, glabra ; IV* III*» 
zquans, ciliolata; palea glumá suá duplo brevior, lanceolata v. 
lineari-oblonga, enervis, glabra v. ciliolata. Pedicelli spiculas sessiles 
subzquantes, crassiusculi. Spicule pedicellate 4—6 mm. longs, 
lineari-laneeolat®, virides, glabrz, mutice; gluma I»* multinervis, 
II^ 3-nervis, II: IT?» zequans, oblonga, obtusa, binervis, ciliata ; IV? 
quam III‘ paullo brevior, lanceolata, 1-nervis v. enervis, ciliata. 
Antherze 2 mm. longz v. hebetatz (0,5 mm. longs), v. cum gluma 
IV: deficientes, gluma III: tum minuta. 
a, genuinus. Gluma IV* II” zquans, linearis, ad '/, v. '/, usque 
fissa, e sinu exserens aristam cire. 14 mm. longam, eujus columna 
intra glumas occulta subula tenerrima basi undulata 2—3-plo brevior 
est. — Spiculæ sessiles angustiores; gluma I™ nervis 10—12 (nullo 
mediano) percursa, callo basi pilosulo; II» obtusiuscula, mueronu- 
lata; spieulee pedicellate gluma I™ in acumen mucroniforme atte- 
nuata. 
Paraguay ad Cerro de Peron — 214); Montevideo (Arecha- 
valeta in h. m.). 
8, muticus. Gluma IV* quam III '/, brevior, lineari-lanceolata, 
integra, mutica, acuta, inferne obsolete 3-nervis. — Rottbeellia Salz- 
manni Trin. ap. Steud. Synops. 1, p. 361; Apogonia glabrata Fourn. 
Pl. Mex. 2, p. 63. — Spiculz sessiles lanceolat®, 6—7 mm. longs; 
gluma P* 7—9-nervis; I^ acuta. Spieule pedicellate gluma I" 
acuta. 
Paraguay prope Villa Rica et Caaguaza (Bal. 292 et 292 a); Bra- 
silia pr. Bahia (Salzmann 715); Martinique (Hahn 1519); Mexico pr. 
Mirador (Liebm. 623, 712 in h. ber., 115 in h. Havn.), Cordova 
NG 12757 
