AND TROPICAL AFRICA. 
107 
Nat. Ord. SIMARUBE.E. 
Nov. Gen. Irvingia, H. f. 
Flores hermaphroditi. Calyx 4-5-partitus, parvus, imbricatus. Petala 4-5, patentia, late oblonga, im- 
bricata. Discus crassus, pulviniformis, elevatus. Stamina 10, basi disci extus inserta, filamentis 
nudis filiformibus. Ovarium ovoideum, apice depresso disci insertum, biloculare, stylo 1 curvo, 
stigmate simplici^ ovulis loculis solitariis, axi medio insertis. Drupa magna, crassa, lignea, lineari- 
oblonga, leviter compressa, abortu 1-locularis, 1-sperma. Semen lineare, prope apicem loculi appen- 
sum, testa subcrustacea, embryone axi albuminis copiosi recto, cotyledonibus planis, radicula brevi 
supera. — Arbores Africa tropicae occidentalism glaberrimte, insapida, ramulis ad nodos annutatis, 
gemmis squamis convolutis obtectis. Folia alterna, simplicia, petiolata, exstipulata, integerrima, nitida, 
membranacea v. coriacea. Paniculae axillares et terminates, ramosce, ramulis ad nodos annulatis. 
Flores parvi, flavi, odori. Drupae magna, edules. 
This singular genus I refer to the Simarubea as modified by Planchon, and to a divi- 
sion of the Order with 2-5-celled ovaries, 1-ovuled cells, and simple leaves; it thus 
ranks near Soulamea and Amaroria, differing from these in the very large disk, in habit, 
and many other characters. The annulation of the branches is very remarkable. I have 
named the genus in honour of the discoverer of one species, Dr. Irving, U.N., for some 
months resident at the Missionary Station of Abeokuta, where he fell a victim to the 
climate. 
1. Irvingia tenuifolia (H. f.) ; foliis membranaceis oblongis obovato-oblongisve obtusis, 
paniculis laxe ramosis ramis divaricatis tenuibus, floribus brevi-pedicellatis sub- 
cymosis, stylo brevi. 
Hab. Abeokuta, beat. Dom. Irving, M.D. 
2. Irvingia Barteri (H. f.) ; foliis coriaceis ovato-oblongis ovato-lanceolatisve obtuse 
acuminatis obtusisve obliquis utrinque nitidis, paniculis parvis paucifloris subfasci- 
culatis, stylo filiformi. 
Hab. Prince's Island, beat. Dom. Barter. " Wild Mango," ab Anglis dicta. 
Arbor 40-pedalis. Fructus edulis {Barter). 
3. Irvingia Smithii (H. f.) ; foliis coriaceis ovatis ovato-cordatisve acutis obtusisve 
ssepissime obliquis paUidis superne nitidis, paniculae ramis elongatis pedicellisque 
divaricatis, floribus racemosis, stylo brevi. 
Hab. Ad ripas fluminis Congo, beat. C. Smith ; et flum. Niger, prope Nupe, Barter. 
Arbor 40-pedalis, ad ripas fluminum. Flares pallide flavi, odori. Fructus magnus, drupaceus, ab simiis 
valde dilectus (Barter). 
Nat. Ord. TEKEBINTHACE.E. 
Subordo Anacardie^e. 
Mangieera Kamanga (Blume) ; foliis petiolatis obovato-lanceolatis apice subacutis basi 
ancmstatis 6-12" londs 2-5" latis rigidis, nervis crebris nitidis patcntibus utrinque 
.gUStft-LlS U— JLA J.UllgJL0 *j—*j xwcx^ jl*^ 
promiimlis, panicula terminali elongata ramis suberectis crassis puberulis, floribu- 
