566 FLORA NIGRITIANA. 
etiam Oropetium Thomeanum. Folia brevia prioris, sed in 
sicco magis convoluta, arcuata, semipollicaria v. paullo lon- 
giora. Spica 1-2-pollicaris, peduneulo e vagina ampliata 
folio superioris haud exserto, rhachi latiuscula compressa. 
Glume quam in M. setacea subbreviores, obtuse v. nervum 
dorsalem exteriorem in mucronem obsoletum subexserentes. 
Palee glumis paullo breviores. Cseterum character accura- 
tissimum genericum Neesii in Gram. Afr. Austr. p. 246, et 
huie speciei optime convenit. 
The Schenefeldtia gracilis, Kunth, extends from Senegal to 
Nubia. 
1. Ctenium elegans, Kunth, Enum. 1. p. 275.—Accra, Don; 
Senegal and Nubia. 
2. Ctenium canescens, Benth. ; spicis 2-3-nis, spiculis 4-floris, 
flore infimo neutro unipaleaceo, ceteris bipaleaceis, quorum 
altero neutro v. masculo tertio foemineo v. hermaphrodito, 
summo masculo, gluma superiore canescenti-hirtello binervi, 
costis in aristas productis, altera ex apice excurrente, altera a 
medio dorso divaricato.—Whydah, Don. 
Folia desunt. Culmus apice pubescens. Spice in altero xit 
cimine geminz, in altero terne, primo intuitu iis C. Ameri- 
cane similes, sed florum structura diversa. Gluma inferior 
(quoad spicam interior) parva, exterior superior flores sub- 
æquans, costis 2 (nee 3 ut in C. Americana) conspicuis, pilis 
brevibus rigidis canescentibus. Flos foemineus v. hermaphro- 
ditus apice ciliis numerosis albis aristas fere æquantibus 
onustus. Palea exterior florum 3 inferiorum dorso aristata, 
flos summus masculus, triander, paleis muticis. 
1. Dactyloctenium mucronatum, Willd.—N. ab. E. Gram. Afr. 
Austr. p. 250.—Cape Coast, Don, Vogel; on the Quorra, 
Vogel; America, Africa and Asia. à 
1. Enteropogon melicoides, N. ab E. in Herb. Wight —Chloris 
simplex, Schum. et Thonn. Beskr. p. 51.—C. distachya, 
Kunth, Enum. 1. p. 265 ?—Cape Coast, Don, a single spe- 
omn with a long solitary spike precisely answering Thon- 
mings description, as well as the East Indian specimens. 
The aspect of the plant is very unlike that of any Chloris. : 
1. Chloris dreviseta, Benth., culmo ramoso compresso vaginis- 
