3IO JOURNAL DE BOTANIQUE 



caeterum glabri. Racemi paralleli, ad 2 cent, longi, laxiusculi, 



4-5 nodi ; pedunculi spéciales brevissimi, longior ad 1.5 mill. longus, 



uti articulus primus aherius racemi apice uno latere in squamulara 



minutam abiens, dense hirsuto-barbati, recurvati (ideoque racemi in 



pedunculo communi nutante erecti), una delabentes ; articuli et pedicelli 



simillimi filiformes, circiter 3 raill. longi, a basi ad apicem aequaliter 



ciliati, ciliis vix i mill. longis albis, apice subrecte truncati. Spicu- 



larum racemi alterius par infimum homogamum, d' . Spiculae ses- 



siles $i lineari-oblongae, truncatuloe, albidse vel inferne caerulescentes, 



cum callo dense ciliaio barbato 0.75 mill. longo 5-5.5 mill. longa;, 



nervoso-striatse, breviter pubescentes vel glabrescentes; gluma inferior 



papyracea, nervis circiter 9 inferne (quorum 5intracarinales) tenuioribus 



pilis inter nervos brevibus rigidulis seriatis ad latera longioribus, 



carinis superne aspero-ciliolatis ; gluma superior inferiori aequilonga, 



membranacea, brevissime acuta vel subtruncata, 3-nervis, superne 



ciliata ; valva inferior oblonga, truncata, tenuiter hyalina, 4 mill. 



longa, 2-nervis, ciliata ; valva superior e basi tenuissima anguste 



linearis, 2-dentata, 3.5-4 mill. longa, parce ciliata, arista gracili, 



columna fulvo pubescente 10-12 mill. longa, seta ad 15 mill. longa; 



palea subquadrata, enervis, 0,75 mill. longa. Spiculae pedicellatae et 



paris homogami lanceolatae, acutse, 6-6.5 ™i^l- longae, glabrae ; gluma 



inferior subherbacea, seta ad 3 mill. longa aristulata, circiter ii-nervis, 



gluma superior acuta, circiter 6 mill. longa, hyalino-membranacea, 



3-nervis, superne ciliata ; valva inferior oblongo-lanceolaia, acuta, 



circiter 6 mill. longa, tenuiter hyalina, i -nervis, marginibus inflexis 



angustis ciliatis ; valva superior anguste lineari-oblonga, quam 



inferior paulo brevior, apice rotundata, i-nervis, ciliata, cum palea ut 



in spicula sessili et flore cf. Stamina 3 ; antherae aurantiacae, 2 mill. 



longae. Caryopsis oblonga, 2.75 mill. longa. 



Soudan Français, Moyen Niger : Entre Nyamina et Koulikoro, 

 5.x. 1899, Chevalier, 2359. 



Gymbopog'on exarmatus Stap ; affinîs C. mfo Rendle, sed 

 spiculis omnibus exaristatis, gluma inferiore spiculae sessilis 

 minutissirae truncata vel subacuta tenuius nervata. 



Gramen monocarpicum, ultra i m. altum. Culmi robusti, erecti vel 

 suberecti, glabri, infra paniculam spuriam circiter 7-nodi, teretes, nodis 

 exsertis. Foliorum vaginae teretes, arctse, firmae, nervoso-striata,', 

 glabrae ; ligulae scariosae, rotundatas, 2-3 mill. longae ; laminae e basi 

 haud angustata lineares, longe apicem versus attenuatae, ad 40 cent, 

 longae, 3-5 mill. latae, firmae, glabrae, ad margiues scabrae, caeterum 

 laeves, pallide virides vel demum rubentes, costa validiuscula supra 



