THEMEDA. ANDROPOGONEJE (AUCT. EDUARDO HACKEL). ES vo 
ecarinatz, arctæ, internodiis breviores, superiores floriferze dilatatze, 
laminas breves v. racemos excedentes ferentes, innovationum valde 
compress&, equitantes. Ligula brevis, truncata v. rotundata, mem- 
branacea, ciliolata. Lamin® e basi angustata in vaginam eâ latiorem 
plerumque sensim abeunte (rarius altero latere vagin® auriculo dis- 
tincta) elongato-lanceolato-lineares, longe setaceo-acuminat&, mediz 
culmeæ 0,4—1 m. longe longioresve, 0,5—2,5 em. late, planæ v.- 
inferne laxe canaliculate, rigide, erectze, virides v. subtus glauces- 
centes, supra scaberule, margine serrulato-scaberrimze, costa media 
crassa multinervi earinata supra late albo-lineata, nervis lateralibus 
primariis utrinque 6—8 subeonfertis prominulis, secundariis inter 
illos erebris non prominentibus. Panicula usque ad 1 m. longa lon- 
giorve, oblonga, subnutans, composita v. decomposita, rarius simpli- 
eiuseula : rami inferiores solitarii, superiores plures usque ad 5", 
quorum primarii sepius multinodes secundarios 37**—5"** simplices v. 
sæpius in ramis inferioribus iterum v. ad quartum gradum usque ramu- 
losos gignunt, ultimi sepe flexuosi nutantesque. Spath& propric lan- 
ceolatze, acuminatze, herbacez v. subchartaces, nervis carinaque sta- 
brz, glabrae, rufescentes v. pallide virescentes, racemos sequantes v. 
superantes, raro eis breviores. Racemi singuli pedunculo filiformi 
superne puberulo v. hirto erecto v. apice curvulo insidentes (tum a 
spatha divergentes), oblongi, spiculas fertiles 1—3 continentes. Spi- 
culæ involucrantes lineari-lanceolatz, c v. raro neutra : gluma I»* 
herbacea, longe-acuminata (in utriusque paris spicula pedicellulata 
setaceo-acuminata), carinis scabris, multinervis; II^ paullo brevior, : 
acuminata; III adhue brevior, lineari-lanceolata v.lineari-oblonga, —— - 
ciliata; IV* tertie simillima. Anthere 2—3 mm. longs. Spicule 
pedicellate superiores pedicellulatis involuerantium simillime, pedi- 
cellis spieula 8 3—4-plo brevioribus breviter fulvo-v. rufo-barbatis 
. demum deeiduis insidentes. Spieule 8 articulis brevissimis oblique 
disjungentibus rufo-barbatis insidentes, lineares v. lineari-lanceolatz, 
primo fulvze, demum fuscæ v. nigrz : gluma I™ coriacea, in spiculis 
mutieis acutata v. acuminata et ipso apice angustissime obtusata, in 
aristatis breviter acutata latiuscule truncatula, marginibus late invo- 
luta, dorso subconvexo sulco longitudinali v. sulcis 3 levibus notata, 
villis maturitatis tempore plus minus deciduis (idque primum secun- 
dum suleum medium) vestita, tenuiter v. distinctius 5-nervis; II^ 
demum coriacea, in spiculis mutieis acuta, in  aristatis obtusiuseula, 
eodem ae I™ modo villosa, subenervis; IIe illis */, brevior, oblongo- 
lanceolata, in mutieis acuta, in aristatis obtusa, tenuissime 1-nervis, 
