ROTTBOELLIA. | ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 299 
lis c? gluma I» in tanda 1—1,5 em. longam scabram subtortam 
viridem abeunte. 
Annua. Culmi graciles, erecti, 60—80 em. alti, inferne teretes, 
striati, superne ramos floriferos breves simplices solitarios agentes. 
Vaginæ teretiuscule (superne subcarinatz), arctæ, inferne e tuber- 
culis hirtz, nodis breviter barbatis, superne glabrescentes, infe- 
riores internodia superantes, summa cum lamina evoluta sed brevi. 
Ligula in seriem pilorum brevium soluta. Lamins e basi sensim 
angustata quam vagina angustiore lanceolato-lineares, tenuissime 
setaceo-acuminata, 25—50 em. longe, 8—12 mm. late, plane, 
flaecidulze, laete virides, utrinque ad nervos primarios marginemque 
seaberrimze et preterea pilis brevibus adspers®, costa media pluri- 
nervi erassiuseula supra late albolineata munita, nervis primariis 
utrinque 3—4 parum prominulis pereurse. Racemi laterales vaginati, 
terminalis paullo a vagina summa remotus, 5—6 em. longi, erecti, 
crassi (diam. 5 mm.), pallide virides, glabriuseuli : articuli spiculam 
sessilem subzequantes, basi anguste lineares, versus apicem valde 
clavati, disjuneti apice profunde excavati, dorso convexo ecostati, 
scaberuli, facie excisi et leviter excavati, margine exteriore ciliis albis 
erectis articulo circ. 3-plo brevioribus infra apicem desinentibus ves- 
titi. Spieule sessiles cum callo angustissime annuliformi breviter 
barbato a reliqua gluma rima profunda separato 6—7 mm. longs, 
late ovatz, pallide, rhacheos cavum vix superantes; gluma I"* coria- 
cea, obtusiuseula, bidentula, marginibus anguste inflexa, flexuris 
superne anguste marginatis scabris, dorso valde convexo minutissime 
punctulato-scabra, estriata sed per lucem transparentem multinervis, 
labra; If“ P= æquans, late ovata, obtusiuseula, subeoriacea, cari- 
nata, carina infra apicem ala brevi gibbi instar munita, 7—9-nervis, 
margine ciliolata; III* magnitudine et forma primze, sed hyalina, inte- 
gra, tenuissime 3-nervis, ad flexuras ciliolata, paleam fovens omnino 
similem tenuiter binervem floremque d' antheris vix 2 mm. longis ; 
gluma IV: quam II? parum brevior, late ovata, obtusiuscula, hyalina, 
subenervis v. obsolete 3-nervis, ciliolata ; ejus palea glumam subæ- 
quans, similis nisi subbinervis, glabra. Stigmata brevia, stylos subæ- 
quantia. Pedicelli articulos subsequantes, ab illis lacuna late oblonga 
separati, ceterum illis similes nisi angustiores, latere interiore ciliati. 
Spieule pedicellate 8 mm. longs, ovatæ v. ovato-oblongs, virides, 
compress: : gluma I™ apice subobliquo obtusiuseula, integra, altero 
margine non, altero anguste inflexa, flexura a basi ad apicem usque 
` ala viridula nervosa scabra munita, ceterum tenuissime multinervis, 
