ISCHEMUM. ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 203 
bra. Lamin® lineari-lanceolate v. lanceolat®, culmex superiores 
raro basi subcordatze, reliqui basi angustat®, plan, rigide, demum 
nigrescentes v. rufescentes, margine scaberrim&, costa media inferne 
erassiuscula superne tenui pereurse. Racemi crassi; articuli spicula 
'/,—duplo, pedicelli ea 3—4-plo breviores. Spiculæ sessiles cum callo 
0,8—1 mm. longo valde depresso 6—7 mm. long&, oblongze, aluta- 
cex v. virescentes, rarius superne violaceo-suffus; ; gluma Im ad ?/, 
v. ?/, usque coriacea et estriata, in '/, superiore chartacea et nervis 
5—7 viridibus prominentibus anastomosantibus notata, apice obliquo 
obtusiuseulo szepe bidentula, carinis in '/,—"/, superiore anguste alatis 
v. marginatis, alis chartaceis eiliolatis, dorso plana, in ?/, —*/, inferiore 
nodulis 2—4 oppositis, quorum superiores interdum rugis transversis 
conjuncti, munita ; II** ovato-lanceolata, chartacea, acuta v. mucronata, 
elevato-carinata, carina scabra, 1-nervis ; II: paleam membranaceam 
lanceolatam glabram binervem antherasque 3 mm. longas includens; 
IV: quam II“ '/, brevior, oblonga; arista 10—14 mm. longa, columná 
glaberrimá spadiceä rectä glumas non v. parum superante quam 
subula albida tota longitudine torta breviore. Palea quam gluma sua 
parum brevior, oblonga. Spiculæ sessilis gluma I"* dimidiato-ovata, 
acutiuscula, altero margine exalata rectilinea, altero ala lata (reli- 
quam glumz partem subsquanti) albida v. rufescente munita, 
7-nervis; II?, II et flos Z ut in sessilibus; IV* ovata, integra v. 
bidentula mutica v. mueronulata, rarissime aristam imperfectam 
ipsam zequantem exserens ; flos superior szepe etiam J'. 
Subspee. imberbe. Spieule preter callum glabre. — I. imberbe 
Retz. Obs. 6, p. 35; I. aristatum Burm. Fl. ind., t. 21, * f. 3 (mala); 
Meoschium aristatum Beauv. ap. R. et Sch. Syst. 2, p. 789. 
Var. a, imbricatum. Culmis erectis robustis, ligula elongata 
4—8 mm. longa; spiculæ sessilis gluma I"* in '/, inferiore utrinque 
binodulosa, pedicellatze enodi. — Meoschium imbricatum Munro Ms. 
in h. ber. — Culmi 50—100 em. alti. Vaginz nodique glabre. Lami- 
nz mediæ 15—25 em. longs, 8—18 mm. late, setaceo-acuminatze, 
utrinque hirtule v. demum glabrescentes. Racemi 7—11 cm. longi, 
articuli nune glaberrimi nune angulo exteriore ciliati, ceterum leevius- 
culi. Gluma Ir spiculæ sessilis carinis superne anguste chartaceo — 
marginata v. sub apice altero latere anguste alata, dorso scaberula, 
nodis oppositis plerumque rugulis subdistinetis conjunctis, callo glabro 
v. pilis ipso brevioribus barbato ; II™ et III glabrze, IV* ad |,usque — 
fissa, aristae columna non v. vix exserta. 
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