ANDROPOGON. ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 537 
Brasilia, prope Villa Boa in prov. Goyaz (Pohl 2819 in h. Vind.).— 
Præcedenti affinis, ariste columná geniculatä quam subula breviore 
facile distinguendus. 
113. A. bipennatus (Hack. in Flora 1885, p. 142); arista 40—45 
mm. longa secus spiras scabra v. ciliolata; spieularum demum fusca- 
rum callo brevissimo obtuso. 
Culmi erecti, inferne graciles, superne erassiuseuli, 80—130 em. alti, 
teretes, e nodis inferioribus ssepius ramosi, glaberrimi, superne sub- 
striatuli. Vagin® teretes, arct®, preeter nodos minute puberulos gla- 
berrimze, internodiis breviores. Ligula brevis, truncata, fusco-charta- 
cea, sepe biauriculata, glabra. Lamins e basi angustata (vaginä 
angustiore) lineares, setaceo-acuminate, plans, medie 15—30 em. 
longas, 4—6 mm. latze, glabr&, virides, subtus scaberul®, supra mar- 
ginibusque aculeolis asperrima, costa media crassiuscula subtus 
obtusa plurinervi, supra albo-lineata, nervis lateralibus vix prominu- 
lis. Panicula linearis, 9—18 em. longa, densiuscula, demum contracta, . 
. ramis 2—5", primariis inferioribus 4—6-nodibus panicula 3—4-plo 
brevioribus, secundarios et basilares et superiores iterum ramulosos 
edentibus, omnibus capillaribus demum suberectis, etiam in axillis et 
apice glabris, cum spieulis reete articulatis, post delapsam spiculam 
cicatricem eupulatam rotundam rectam exhibentibus. Spiculæ lanceo- 
late, 5—5,5 mm. longe, nitidulze : gluma F= coriacea, apice angus- 
tissime truncatula, infra apicem bicarinata, carinis scaberulis, in '/, 
inferiore marginibus involuta, dorso convexula, tenuiter 5-nervis, in */, 
inferiore pilis albis plus minus villosa, callo pilis ipsa 5-plo brevioribus 
dense barbata; I“ P= subsuperans, late lanceolata, apice obtuse 
triangularis, in '/, superiore carinata, carina scaberula, inferius con- 
vexa, glabra, 5-nervis; III’ primá '/, brevior, oblonga, truncata, emar- 
ginata, binervis, ciliata; IV^ III" zequans, lineari-oblonga, bilobula, 
ciliolata; arista validiuscula jam supra basin conerescens 40—45 mm. 
longa, columna medio geniculata atro-fusca, subulam rectam sub&- 
quante. Palea 0. Antherz 1,2 mm. long&. Pedicelli steriles spicula 
'/, breviores, eleganter pennato-ciliatis, ciliis albis rigidiusculis pedi- 
cello 3—4-plo brevioribus. 
Africa centr. in terra trib. Djur ad Seriba Ghattas (Schweinf. pl. 
Afr. centr. 2486); Madagascar (Rutenberg). 
114. A. leptos (Steud. Synops. 1, p. 397); arista 8 mm. longa. 
glaberrima, spicularum (2 mm. longarum) albidarum callo minuto 
