ROTTBOELLIA.  ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 291 
oblonga, eum ala pandurzformis, ala spe erosula v. undulata rarius 
emarginata, scariosa, ad basin ale et in '/, inferiore ruga hispidula 
obtusa praedita, ceterum scabra, tenuiter 5-nervis; II“ primä '/, bre- 
vior, ovalis, acutiuseula, 3-nervis, glabra; II II?» zequans, ovali- 
oblonga, obtusissima, vacua, glabra ; IV* paullo brevior, lanceolata, 
subacuminata, enervis, glabra, ejus palea obsoleta v. prorsus O. 
Stigmata divergentia, recurvata. Spicule pedicellate (primariz) 
sessiles aquantes, oblongze, virescentes : gluma I™ herbaceo-chartacea, 
oblonga, obtusa, altero' margine inflexa, in hujus '/, superiore ala 
sursum dilatata przdita, altero anguste marginata, dorso elevate 
5-striata, scabra; II“ P^ zequans, ovalis, navicularis, infra apicem 
alula semiorbiculari minuta, 3-nervis ; III* I” zequans, ovali-oblonga, 
obtusa, tenuissime 3-nervis, cum palea lineari-oblonga glumam 
æquante sed sine flore; IV* If” zequans, late oblonga, obtusa, 
2-nervis, cum palea ei simili nisi angustiori, floreque 5, antheris 
2 mm. longis. 
India orient. : Peninsula (Wight 1725), Wall. 8880 B, C.; Pondi- 
chery (Perrotet 584); Maisur et Carnatie (Hook. f. et Thoms. ex p.). 
8. R. acuminata, spicule sessilis gluma I": lineari oblonga in 
aeumen tenue reliqua gluma longius sensim abeunte, carinis alatis, 
supra basin rugis 3 transversalibus valde elevatis verrueosis notata. 
Annua, tota exceptis vaginis glaberrima. Culmi 7—20 em. alti, 
ascendentes, compressi, dense foliati, simplices v. ramo florifero 
aucti. Vaginze subinflatze, compresso-carinatze, ore fimbriatz, inter- 
nodia superantes, summa cum lamina evoluta. Ligula brevis, trun- 
cata membranacea, glabra. Lamins superiores e basi sequilata a 
vagina parum distincta lineares, sensim angustatze, ipso apice anguste 
obtusæ, recurvato-patentes, 2—7 em. longs, plane v. complicatze, 
explanate 2—4 mm. late, inferiores e basi valde angustata lanceo- 
lato-lineares, 6—8 cm. longæ, 5 mm. latæ, acuminatæ, omnes flacei- 
dulæ, costa media tenui l-nervi carinante supra haud albolineata 
percursa, nervis lateralibus non prominulis. Racemus 2,5—3 cm. lon- 
gus, basi vaginatus, strictus v. leviter curvatus, crassiusculus, pallide 
brunnescens; ejus internodia spicula sessili plus duplo breviora, cras- 
siuseula, subelavata, dorso convexula, striata, basi non excisa. Spicu- 
læ sessiles cum callo vix distincto 7 mm. longie; gluma I= inferne 
coriacea, ab '/, inferiori alata, ala in acumen sensim abeunte, rugis 
ad margines in verrucas exsilientibus, dorso inter rugas in longitu- 
dinem striata, tenuiter 5-nervis; II^ P^ demto acumine zequans, 
