438 MONOCOTYLEDONEE. ANDROPOGON. 
I» callo glabro, IV** arista hispidula. — À camporum Trin. s 
Steud. Synops. 1, p. 378. 
Culmi 70—80 em. alti, graciles, teretiusculi, tenuissime striatuli. 
Vaginz teretes, glabre v. appresse pilosæ. Ligula 1—1,5 mm. longa, 
truncatula, non decurrens, spe pilis stipata. Lamine innovationum 
elongate, 20—50 em. long&, ereetze, omnes e basi »quilata anguste 
lineares (1—1,5 mm. latæ), convolutz, rigidze, glabræ v. basi barba- 
tæ, virides, margine scaberule, ceterum læves, costa media inferne 
fere totam laminz latitudinem occupante, etiam in parte superiore 
crassa, plurinervis, subtus obtusa, supra late albo-lineata. Racemi 
terni, raro 4“, imo a 2 superioribus internodio 15—20 mm. longo sepa- 
rato, a vagina summa (spatha) distante, pedunculo communi glaber- 
rimo insidentes, 5—8 cm. longi, flaceiduli. Spiculæ sessiles 6—7 mm. 
longze : gluma I= marginibus anguste implicata ; III: 3-nervis, IV* 
. quam Ill ’/, brevior, ciliata, ad '/, usque biloba ; palea glumä duplo 
brevior, longe fimbriata. Stigmata brevia, lanceolata. Spiculæ pedi- 
cellate 6—6,5 mm. long& : gluma I™= 9—11-nervis, II“ 5—7-nervis ; 
ovarium plerumque semievolutum, stigmatibus brevibus coronatum. 
Brasilia : In campis siceis graminosis Serra da Lapa prov. Minarum 
(Riedel, Langsdorff). 
59. A. trichozygus (Baker in Journ. Linn. Soc. 20, p. 300); 
culmo ramoso glabro ; vaginis superne angustatis ore a culmo distan- 
tibus, summa (spatha) aphylla; laminis subjunceis inferne semi-cylin- 
drieis; spiculæ sessilis gluma I™ callo barbato, IV** arista glabra. — 
. madagascariensis Hack. in Flora, 1885, p. 136 
Rhizoma dense esepitosum, innovationibus extravaginalibus erectis. 
Culmi 80—100 em. alti, compressi, eine "— shoe. e nodis 
2—4 superioribus remotis li rno elong 
strietos, superioribus subfastigiatis, edentes. Vaginze compressa, 
obtuse carinatz, levissim&, glabræ v. ore barbatz, superne secus 
carinam ad mediam latitudinem usque connatz, ibique culmum non 
 ampleetentes. Ligula elongata, 3—7 mm. longa, lineari-oblonga, 
obtusa, membranacea, in vagine margines decurrens, glabra v. ciliata 
ssepius pilis stipata. Laminze inferiores 20—40 em. longze, e basi zequi- 
lata anguste lineares, 1—2 mm. late, rigidze, glabr& v. basi barbatze, 
virides, margine scaberrim&, ceterum leviuscule, costa media ut in 
specie precedente. Racemi bini—quaterni, a vagina (spatha) primo 
basi amplexi, demum ab ea plus minus remoti, pedunculo communi 
glabro, superne scaberulo insidentes, 4—6 cm. longi, strietiuseuli. 
