682 MONOCOTYLEDONEJX. . ISEILEMA., 
scabra, valide 5-costata interjectis costulis 2 ab apice paullo descen- 
dentibus, costis interstitiisque punctulato-scaberula; II“ 3-nervis, 
marginibus hyalinis late implieatis glabra; III* 0. Antherze 2—3 mm. 
longæ. Spiculze pedicellatze superiores pedicellis dimidia spicula sessili 
brevioribus rigide parceque ciliatis fulta. Spicula 8 articulo gracili 
vix 1 mm. longo insidens, 8 mm. longa, lineari-lanceolata, acuminata : 
gluma I™ subcoriacea, e basi late lanceolata subito in rostrum lineari- 
subulatum glum& ?/, oecupans attenuata, marginibus late carinato- 
 implicata, carinis superne acutis scabris, inferne obtusis levibus, ad 
basin rostri ciliolatis, rostro manifeste 4-nervi scaberulo, reliqua 
; gluma lzvissima, tenuiter 6-nervi ; II^ e basi lanceolata longe subulato- 
acuminata, obsolete carinata, 3-nervis, marginibus involutis, membra- 
naceis glaberrima ; HPF integra; IV** arista 15—18 mm. longa, columnä 
quam subula breviore. 
Birma : Montes ad Prome, Akkul Mahmud (Wall. 8769). 
B. Vagine florifere et spathe proprie cariná nervisque submarginalibus non 
verrucosa. 
3. I. laxum ; panicula elongata, lineari, laxa, interrupta ; racemis 
spathz parallelis; spiculis involucrantibus pedicellis quam ipsæ 4-plo 
brevioribus filiformibus fultis, triglumibus; spicula 8 articulo 
1,5—2 mm. longo insidente glabra, involuerantibus obtecta. — I. 
prostrata Anderss. l. c. p. 251 excl. synonn.; t. 3 « Iseilema. » Nomen 
rejiciendum 1° quia citatione falsa nititur, nam Andropogon pros- 
tratus L. est I. Wightii Anderss. nec I. prostrata ejusd.; 2% quia zs 
planta minime prostrata, sed maxima parte erecta, basi tantum bre- 
viter ascendens. 
. Culmi breviter ascendentes, 20—40 em. alti, inferne simplices v. 
- foliifero-ramosi. Vaginz laxe, glaberrim&. Ligula brevis, truncata, 
membranacea, ciliata. Lamine sursum haud angustat®, obtuse v. 
obtusiuscule, 3—8 cm. longe, 2—4 mm. late, flaceidule, glauces- 
centes, preter basin sepe fimbriatam glabre, subtus leves supra 
Sscaberule, margine scabrz. Panicula culmi '/,—'/, oceupans, erecta 
v. apice subnutans, anguste linearis, subcontracta, simpliciuscula; = 
ejus rami inferiores bini—quini, insequales, superiores 3*—8": sub- 
æquales, simplices, subvertieillati, primariis inferioribus plus minus 
elongatis plurinodibus, secundarios singulos v. binos distichos gignen- 
tibus, secundari omnihus broyibut e e vagina florifera non v. ix — . 
exsertis, inter] p elliptiei , rufescentibus. Bp em 
