436 FLORA NIGRITIANA. 
- The Verbesina ciliata, Schum. et Thonn., from Guinea, is 
insufficiently described to determine the genus into which more 
recent classifications would place it. 
1. Spilanthes caulirhiza, DC. Prod. 5. p. 623.—Eclipta fili- 
caulis, Schum. et Thonn. Beskr. p. 390 2—St. Thomas, Don; 
Guinea and Nubia. 
2. Spilanthes costata, Benth.; glabriuscula, foliis petiolatis ob- 
longis ovatisve subintegerrimis, capitulis ovato-conicis dis- 
coideis, involucri squamis ovatis obtusis flores subeequantibus, 
acheniis puberulis 3-4-costatis, costis crassis, 2 validioribus 
apice in aeumina brevia productis.—Cape Palmas and Cape 
Coast, Vogel. 
Caules elongati, basi radicantes, uti folia et inflorescentia glabri 
v. vix pilis minutis scabrelli. Folia 1-2-pollicaria, obtusa, 
basi angustata, integerrima v. rariter ct minute dentata. Pe- 
dunculi 2-A-pollicares,: superne paullo incrassati. Capitula 
quam in S. oleracea paullo minora. Involucri squame late 
ovate, 1} lin. longs, exteriores subfoliacese, interiores mem- 
branacee angustiores, in paleas obovali-oblongas leviter con- 
cavas abeuntes. Flores omnes tubulosi subcampanulati, 5- 
dentati, hermaphroditi. “Anthere incluse. Stylus basi bul- 
boso-callosus, ramis apice truncatis. 4chenia a latere com- 
pressa, utrinque tamen convexa et.latere uno costato sub- 
triquetra, v. utrinque costata et tetragona; costis duabus 
(antica posticaque) validioribus demum fere suberosis ciliolatis, 
in aristam seu mucronem brevem crassam productis. 
I am not acquainted with any other Spilanthes with the 
peculiar achenia of this species, which has entirely the habit of 
the genus. 
1. Chrysanthellum Senegalense, DC. Prod. 5. p. 631.—On the 
Quorra, at Patteh, Vogel; Senegal. : 
_ It is most probable that the four species of Chrysanthellum 
described by De Candolle, as well as the Hinterhubera Kotschy’ 
Schultz Bipont., are mere varieties of one species, in whic 
the achenia vary very much in the development of their pet 
carp. Ifsuch be the case, this small annual is common to the 
West Indies, Brazil, Tropical Africa and East India. 
