FLORA NIGRITIANA. 525 
Indian F. heterophylla, Linn., but is sufficiently distinguished, 
amongst other characters, by the constricted base of the recep- 
tacles, 
There are besides, specimens, in leaf only, of three species, 
apparently of Ficus or some allied genus. 1. A tree from - 
Sierra Leone, in Don’s collection, with large obovate leaves, 
nearly smooth. 2. A tree from Sierra Leone, in both Don’s 
and Vogel’s collections, with the young branches thick and 
densely clothed with long hairs, large obovate-oblong leaves, 
and the fruits (receptacles ?), according to Vogel, closely sessile 
on the branches. 3. A tall tree, from the Quorra, opposite 
Stirling, with milky juice, and shining, oval, entire, coriaceous 
leaves, a fruit (receptacles) twice as big as a man’s head, and 
conjectured by Vogel to be an Artocarpus, known by the 
Kroomen under the name of Oqua. 
1. Celtis integrifolia, am.—Planch. in Ann. Sc. Nat. Ser. 3. 
v. 10. p. 308.—On the Gambia, Don ; Senegal. 
2. Celtis sp. Planch. /. c. p. 8307.—St. Thomas, Don. 
1. Sponia strigosa, Planch. in Ann. Sc. Nat. Ser. 8. v. 10. 
P. 820.— On the Quorra, Vogel. 
2. Sponia Africana, Planch. l. c.—$Sierra Leone, Vogel, Don ; 
Senegal. 
3. Sponia affinis, Planch. 1. c. p. 329.—Sierra Leone, Vogel. 
The above three species appear to me far too much alike to 
be considered specifically distinct from each other, or from 
the Celtis Guineensis, Schum. et Thonn. from Guinea, a synonym 
apparently overlooked by Planchon. 
4. Sponia nitens, Planch. in Ann. Sc. Nat. Ser. 3. v. 10. p. 325. 
— Fernando, Po, Vogel. 
DıcorTyLEDONES inceríe sedis. 
. Ceratophyllum vulgare, Schleid., Linnea 11. p. 540. t. 11. 
—In the Quorra and other waters of West Tropical Africa, 
as well as of the greater portion of the globe. ; 
The careful observations of Schleiden and his elaborate disser- 
tations above quoted, whilst they make us thoroughly acquainted 
With the real structure of this plant, have shown that no one 
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