248 MONOCOTYLEDONEJE. ISCHJEMUM. 
palea ei similis, 2-nervis; antherz floris c? 1,5 mm. longæ. Gluma 
IV: III*» :quans, oblonga, ad '/, usque in lobos 2 acutos fissa, glabra, 
3-nervis, gibbula, membranaceo-hyalina, arista gracillima, subper- 
fecta, columná e glumis haud exsertá fulvescente glaberrimá quam 
subula 3—4-plo breviore; palea glumam me wqomis, subulato- 
lanceolata, hyalina, enervis, glabra. Stigmata st æquantia 
Spiculæ pedicellatæ sessilibus parum breviores; ` similes nisi gluma pu 
altero margine angustissime, altero latissime (ad medium usque) 
implicata, carin& hac latiuscule alata, IV* minus profunde bifida, 
aristam 4 mm. longam emittens, florem etiam c fovens. 
Borneo (Beccari 3820 in h. de Cand.). — Species sedis subincertz, 
precedenti haud affinis, spicularum structura magis ad Euischzema 
vergens, subgenera arete connectens. 
B. Culmi ramosissimi, ramis floriferis. Gluma IVa spicule sessilis ex apice 
à aristata (n. 39, 40 
39. I. sulcatum; spiculis sessilibus omnibus aristatis fertilibus; 
earum gluma I” bicuspidata, II“ aristata. 
Perenne? Culmi geniculato-ascendentes, 60 cm. v. plus alti, debi- 
les, teretes, glaberrimi, ecostati, a basi valde ramosi, ramis 2—3" 
elongatis nec vero distincte paniculatis, superne nudi. Vaginæ tere- 
tiusculæ, laxæ, ramorum ope sæpe a culmo solutæ, ore constrictæ, 
glaberrimæ, costatæ, internodiis breviores, summa cum lamina evo- 
luta. Ligula in seriem pilorum soluta. Laminæ e basi æquilata rotun- 
data lineares, sensim setaceo-acuminatæ, 10—15 cm. longæ, 4—6 mm. 
latæ, vernatione convolutze, adultæ planze, flaccidulæ, glaucescentes, 
presertim supra marginibusque scabræ, costa media 1-nervi a reli- 
quis vix distincta superne angustissime albolineata notatæ, nervis 
primariis utrinque 3—4, secundariisque inter illos 3—4" percursæ. 
Racemi graciles, 6—8 cm. longi, laxiusculi, strieti, viriduli; articuli 
pedicellique spicula dimidia sublongiores, lineares, tenues, angulos 
duos exhibentes, oblique disjungentes, altero margine glabri, altero 
pilis longiuseulis albis mollibus ciliati, dorso læves. Spiculæ sessiles 
cum callo 1,5 mm. longo oblongo postice et ad latera breviter bar- 
bato 9 mm. longæ, lineares, flavo-virides; gluma I» ehartaceo-coria- 
cea, bidentata, dentibus acutissimis v. euspidatis subdivergentibus 
membranaceis intus nervo viridi notatis facile rumpentibus, margini- 
bus inferne involuta superne implicata carina altera angustissime, 
altera latiuscule membranaceo-marginata scabra, dorso subconvexo 
