350 MONOCOTYLEDONEJE. ARTHRAXON. 
(excepto margine altero parce eiliato) glabris ; ligula cc. 2 mm. longa; 
spieulis lineari-lanceolatis: gluma I" punetato-scabra v. superne 
versus margines aculeolata. — Pleuroplitis Junghuhnii Nees! ap. 
Steud. Synops. 1, p. 414; Lucaea Junghuhnii Steud. 1. c. ; Lucaea 
typiea Büse in Pl. Jungh. 3, p. 367 ; Pleuroplitis major Miqu. Fl. Ind. 
bat. 3, p. 481 (excl. syn. Walk.-Arn.). 
Culmi 60—70 em. alti. Vaginz arcte, nodis glabr&, internodiis 
breviores, summa laminam angustiorem sed evolutam ferens. Ligula 
rotundata, erosula, glabra, pilis stipata. Laminæ e basi profunde cor- 
dato-amplexicauli lanceolatze, 10—14 cm. longæ, 12—17 mm. latæ, 
virides, praeter marginem glaberrimz. Spiee spurie 6—12"*, ad 
rhacheos communis glaberrim& longiusculæ nodos alternze, superiores 
 Simpliees, inferiores divise, singule pedunculis 6—8 mm. longis 
fulte, 5—8 em. longs, laxæ, subnutantes, glabr&, livide, articulis 
pareissime breviterque ciliatis. Spieulze suboblique lineari-laneeolatze, 
6—7 mm. long&; gluma I"* herbaceo-chartacea, v. coriaceo-charta- 
€ea, eonvoluta v. subeomplieata, explicata late lanceolata, acutius- 
cula, tenuiter 7—9-nervis, tota punetis versus margines elevatioribus 
acutisque, ceterum tenuioribus exasperata ; II“ lanceolata, acuta, 
chartaceo-membranacea, 3-nervis, margine glabra v. ciliolata, cete- 
rum scabro-punctata; III primá paullo brevior; IV** arista 10—11 
mm. longa, columnä intra glumas latente subulam aquante. Anther® 
3 mm. longo. Pedicelli steriles nn 3-plo breviores, tenuiter fili- 
formes, parce ciliati. 
Java: in monte Merapi aliisque inter 1600—2000 met. alt. (Jungh.). 
4. A. breviaristatus; vaginis ore longe ciliatis, e tuberculis 
hirtulis, nodis barbatulis; ligula brevissima ; spieulis suboblique lan- 
ceolatis, gluma I™ secus nervos omnes aculeolata. 
Culmi 50—60 em. alti. Vagin® laxiuseule, summa laminam bre- 
vem ferens. Ligula brevissima, rotundata, ciliolata, pilis longis stipata. 
Laminæ e basi late amplectente ovato-lanceolat, 3,5—4,5 em. lon- 
ge, 10—12 mm. latze, virides, pilis basi tuberculatis fugacibus adsper- 
sm. Spies spuriæ 6"* v. plures?, breviter pedunculatz, circ. 3 em. 
longs, glabræ, livide violaseenti-suffusz ; articuli inferiores glabri, 
superiores parce breviterque ciliati. Spieule 4,5 mm. longs ; gluma 
I^ chartacea, explicata elliptica, e medio parum acutata, acutiuscula, 
9-nervis, versus margines longius, medio et basi brevius aculeolata, 
inferne elevato-punctata ; II“ subchartacea, acuta v. mucronulata, 
3-nervis, marginibus hyalinis eiliolatis; III* primá '/, brevior; IV** 
