104 JOURNAL DE BOTANIQUE 



se aequales, omnes o*, lanceolatae, acuminatae, glabrae, 7-9 mm. 

 longae : Gluma inferior herbaceo-chartacea, tenuiter multi* 

 nervis, marginibus anguste inflexis, in spiculis pedicellatis 

 tenuius quam in sessilibus acuminata; stiperior subhyalina, 

 3-nervis, oblongo-lanceolata, acuta, 6-7 mm. longa. Valva 

 inferior glumae superiori subaequalis, hyalina, margine reverse 

 ciliata; superior angustissime linearis, parce pilosa, inferiori 

 aequilonga.y^;z//j(?n7£purpureae, 4mm. longae. Spicula^ unica, 

 ad summum nodum enata, cum spiculis pedicellatis 2-nis <f in 

 ternionem disposita et matura cum pedicellis adpressis decidua : 

 Gluma inferior coriacea, dura, lineari-oblonga, truncatula, 

 fusca, albo-pubescens, 8 mm. longa, nervis inconspicuis, supe- 

 rior substantia et pubescentia inferiori similis, subaequ? 

 secundum nervos 3 profunde sulcata. Valva inferior oblonga, 

 obtusa, hyalina, margine reverse ciliata ; stiperior breviter acute 

 2-dentata, 3 mm. longa, glabra, inter dentés aristata, arista ad 

 8 cm. longa, ad médium geniculata, columna minute fulvo-his- 

 pidula, validiuscula, arcte contorta; palea nulla. Lodiculae 

 cuneatae, 2. 



Guinée française : Kouroussa, Pobéguin, 521. 



6. Panicum (% Eu-Panicum) drosocarpum Stapf (sp. 

 nov.) affinis P. Baumannii ¥L. Schum. difïert duratione annua, 

 spiculis minoribus, glumis minus latis minus concavis haud 

 viridibus. 



Gramen annuum. Culmi gracillimi, 0,3-1,3 m, alti, basi 

 ramosi ramis erectis, longiores ad 7-nodi, glabri, laeves, inter- 

 nodiis exsertis. Foliorum vaginae arctae, prominule nervosae, 

 glabrae, infimae brèves, superiores. (in specimine Barteri) ad 

 6 cm. longae; ligulae perbreves, truncatae; laminae angustis- 

 sime lineares, longe attenuatae, acutae, ad 8 cm. longae, ad 

 2 mm. latae, exsiccando involutae, supra basin versus saepe 

 pilislongiusculis tenuissimisconspersae, laeves. Panicu/ae la.x.a.e, 

 ambitu obovatae, longe e vagina summa exsertae, 6-9 cm. lon- 

 gae, 3-4 cm. diametro ; rami filiformes, oblique patuli, a basi 

 ramosi ramulis capillaribus, laeves ; pedicelli tenuissimi, .1-7 mm. 

 longi, laeves. Spiculae ellipsoideae, 1,25-1,4 mm. longae, 

 pallidae. Gluma inferior ovato-elliptica, subacuta, quam spi- 

 cula paulo brevior, parcissime puberula; stiperior spiculam 



