TAB. 5g. C T E N I U M ELEGANS.
Culmis erectis; vaginis glabriusculis; tbliis sulcatis, scabris; spiculis quadrtfloris;
g luma exteriore binervia, versus medium tuberoalato-submucronala, carina
papilloso-scabra.
Crescit inScnegalia.
Radix fibrosa ; fibris fiiiformibus, subilexuosis, superne villosis. Culmi caispilosi, erecti, simpUces,
tevetes, glabri, 2o-25-pomcares ; nodis imberblbus. Folia anguste linearla, apice aogustala,
plana, sulcato-stiiata, utrinque margineque scabra, 4-6-pomcaria, lineam lata. Vagirne
sulcato-striaUe, glabriuscidas, internodiis duplo Iriplove breviores, 2.4-pomcaies. Ligula brevissima,
membranacea, Umcata, ciliala. Spicco terminales, solitarice, lineares, erectre, siibfàlcataj,
subtiipollicares ; rhacbis complanata, esterne coavexiuscula, margine dense ciliolata.
Spicule uniklcfales, sessQes, arclissime imbricat®, biseriatte, quadrillorse; flores duo iiifeiiores
sleriles, unipaleacei (ex bis superior interdum bipaleaceus?, masculus?) ; tertius hermaphrodilus,
bipaleaceus; cpiartus (terminalis) tabescens, subclavatus, pedicellatus, mulicus. Glmri® daaj,
iuajquales, membranacea, acutato-sul>u]ata2 ; inferior {interior) parva, ovato-lanceolata, uoiiiei
via, cannata, carina tid;ierculato-den!lculata, stibciliolata; gluma superior (exterior) li'iplo
quadruplovelongior, flores duplo superaos, lanceolata, binervia, carinata, eai'ina pilis brevibus
rigidis infcrneque papillis interjectis scabrata, nervo laterali nonnisi medium gliunte attingente
ibique lubci'culo clentifonni terminalo. Flores steriles inaiquales; inferior | brevior, glmnam
exteriorem vis superans; superior flore hermaph rodi to | brevior, longius aristatns : Palea inferior
(superior nulla) spathulato-oblonga, apice biloba, sub apice arbtata, trinei-via, carinatoconcava,
membranacea, straminea, nervis mavginalibus papilloso-tuberculatìs, externe praìsertim
dorso margineque pilis longis rigidis obsita; arista subcurvata, scabriuscula, paleam
longitudine ti'iplo quadruplove superans, straminea. Flos ferlilis sessilis, basi baibalus : Paleaduaj,
membra Qacea;, albido-stramine® ; inferior obionga, sub apice bilobo aristata, obsoleti
trinervia, carinala, glabi'a, supei'ne versus marginem pilis longis rigidis albis obsita; arista scabra,
subcuj-vata, palea sesqui-vel duplo loagior, non articulata, straminea; palea superior paulo brevior,
oblouga, binervia, bicarinala, apice emarginata, carinis superne papilloso-denticulalis.
Squainuls duie, subdolabriformes, membranaceae, hyalinaì, glabrs. Stamina tria, stipiti ovarii
insei'ta. Filamenta capillacea, glabra. Antliera; lineai'es, utrinque bifìdfe, biloculares, glabra;,
ilavidaj. Polliiiis granida minutissima, subrotunda, hyalina. Ovai'ium oblique ob ovato-sub turbinatum,
brevissime stipitatiun, apice attenuatum et moUiter pilosiun?. Styli duo, terminales.
Stigmata subplmnosaj pilis remoùs, simplicibus, subdenticulatis. Caryopsis immatura, oblique
oblougo-subfusiformis, embiyoni contrarie compressa, IKVÌS, glalDra, fuscescens, libei'A, paleis
inclusa. Embryo fructu triplo brevior, oblongo-subspathdatus. Corculum tereliusculo-clavatum,
in sulco cotyledonis locatimi.