414 MONOCOTYLEDONEJE. ANDROPOGON. 
compressse, toto decursu zequilatz sese invicem vel culmum ad os usque 
amplectentes, neque prope carinam connatz, omnes tota longitudine 
v. superne appresse sericeo-villos®. Laminze innovationum 6—10 cm. 
longe, complicate; culmeze inferiores—20 em. longæ, sepius plans, 
2—3 mm. late, breviter acutatze, submueronatz, subtus pilis longis 
appressis deeiduis vestite, supra glabre, leves, margine scaberulz. 
Panicul& lineari-elongat® attenuatze 20—30 em. longæ rami primarii 
'1—2-nodes, secundarios solitarios uninodes, breves, simplices gerentes, 
omnes infra nodos plus minus longe barbati. Spathe proprie 5—5 cm. 
longs, lanceolatze, acuminatze, carinatze, rufze rarius viridule, glabrze, 
peduneulum communem 5—8 mm. longum pluries superantes. Racemi 
3 em. longi, densiflori; rhacheos subflexuos® articuli erassiuscule 
filiformes, superne subdilatati, spicula duplo breviores, villis candidis 
copiosissimis, summis articulo 3—4-plo longioribus, vestiti. Spiculae 
8 lineari-lanceolatz (latiores quam A. virginieif, 4—4,5 mm. longse, 
pallide : gluma I= breviter acutata, haud mucronulata, carinis acu- 
leolato-seabris; IT^ et IIT acute, glabra, IV: breviter bidentata, 
glabra; arista gracilis 15—18 mm. longa basi obsolete geniculata. 
Anthera 1,5 mm. longa. Pedicelli steriles filiformes, spiculam 8 supe- 
. rantes, demum extrorsum eurvati, villis copiosis ipsos superantibus 
vestiti. 
Florida (Garber, Curtiss in h. m.). 
38. A. Elliottii (Chapm.! Fl. South. Un. St. p. 581 exel. syn.) ; 
racemis binis raro ternis gracillimis in paniculam simplicem brevem 
superne dilatatam parce ramosam dispositis; vaginis foliorum 3—6 
superiorum valde approximatis fastigiatis imbricatis cymbiformi-dila- 
tatis post fructos maturos complanatis subflabellatisque glabris, lami- 
nas sensim breviores sed paniculam superantes gerentibus, ex axillis 
ramos plerumque binos simplices procreantibus, ramo altero longiore . 
racemos e spatha propria exsertos, altero brevi racemos in spatha 
occultos ferente; articulis ab ipsa basi densiuscule villosis ; gluma 
I" inter carinas canaliculato-depressa raro planiuscula, callo pilis 
gluma vend brevioribus vestita: arista sæpius perfecta; spicula 
tabescente subnulla. 
Culmi 60—80 cm. alti, graciles. Folia viridia : vaginæ innovatio- 
num complanato-compressæ, ubique subæquilatæ sese invicem v. cul- 
mum fere ad os usque amplectentes, prope carinam non connatz, 
superne sepius laxe pilos®, superiores spathas subeymbiformes 4—8 
cm. longas rufescentes (neque vero cum spathis racemorum propriis 
