464 FLORA NIGRITIANA. 
denia sesamoides, Van Houtte; Walp. Rep. 6. p. 518.— 
Common about habitations, from Senegal to Benin and Fer- 
nando Po, having spread, probably from cultivation, here as 
in other parts of Africa and Asia. 
Van Houtte has ascertained that the small globular bodies on 
each side of the pedicels, usually described as glands, are, in 
fact, abortive flowers, and has corrected, in a few other particu- 
lars, the character usually given of this plant, which is certainly 
identical, both specifically and generically, with the common 
Sesame. 
The other W. Tropical African species of the tribe (or, as 
some will have it, of the Order) of Sesamee are: Sesamopteris 
radiata, DC., from Guinea; S. alata, DC., from Senegal and 
Guinea; Ceratotheca sesamoides, Endl., from Senegal, Nubia 
and Abyssinia, and Rogeria adenophylla, Gay, from Senegal and 
Nubia. 
LXXVII. CONVOLVULACEÆ. 
l. Batatas incurva, Benth.—Convolvulus incurvus, Schum. et 
Thonn. Beskr. p. 99.—Ipomæa humilis, G. Don, Gard. Diet. 
4. p. 267.— Sierra Leone, Don ; on the Nun River, Vogel. 
Glaberrima. Caulis repens, radicans. Folia nunc omnia m- 
tegra, 9-4 poll. longa, 3.6 lin. lata; nunc basi aucta lobis 
2 lineari-oblongis angulo recto divaricatis v. sursum incur- 
vis. Corolla, ex Vog., alba, basin versus lutescens, ima 
rubro-fucata. Ovarium certe 4-loculare. 
This may be a variety of the common American sea-coast 
species, B. acetosefolia, Chois., but as well from Thonnmg?* 
description as from the few imperfect specimens before me; x 
appears to me to be distinct. It can hardly be the same 9* 
Ipomea Clappertoni, Br., to which Choisy has referred Thon- 
ning's plant. : 
2. Batatas paniculata, Chois. in DU. Prod. 9. p. 339.—Cult- 
vated at Cape Palmas, Vogel; a common Tropical plant— 
Ejusdem var. foliis integris v. rarius lobatis ;—Ipomæa erio- 
sperma, Beauv. Fl. Ow. et Ben. 2. p. 73. t. 105.— Grand 
Bassa, Cape Coast, and on the Nun River, Vogel. 
