Feb. 16, 1914 
Citropsis , an African Genus Allied to Citrus 
427 
broadly winged segments of the rachis for leaflets sprouted out of each 
other. 1 His specimen is preserved in the Dahlem Herbarium and has 
been referred to Limonia Schweinfurthii by Engler. 2 
The original label has a note by Stuhlmann to the effect that the fruit 
is orangelike, light yellow in color, shows two seeds, and has a sweet pulp 
without acid. A sketch on the label shows a 4-celled fruit with two seeds. 
Most of the leaves are pinnately 5-foliate, though the specimen is in bad 
condition and many leaflets have been lost. Both the leaves and spines 
are much like those of Schweinfurth’s original specimen from Uando, 
and it is very probable that both belong to the same species. 
Misled by the statement in the original description of this species that 
the leaves are trifoliate, Baker described a new species, Limonia ugan - 
densis, in 1907, which he says differs from Limonia Schweinfurthii (known 
to him only from the description) in having 5-foliate instead of 3-foliate 
leaves. 
The,type of Limonia ugandensis was collected by Mr. A. G. Bagshawe 
(No. 1007) on April 25, 1906, at Toro, in the Mpanga Forest, to the 
east of Albert Nyanza, in western 
Uganda, at an altitude of 1,550 
meters. The type specimen shows 
flower buds and has single spines and 
mostly 5-foliate leaves, but appar¬ 
ently a few 3-foliate leaves also. 
The petioles and segments of the FIG. 5.— Citropsis Schweinfurthii: Nearly mature 
rachis are broadly winged and vary fruit; a, side view, showing calyx and disk; s, 
, . section showing four cells with pulp vesicles 
from narrowly elliptical to obovate in and three seeds. Bagshawe No. 1365, in 
outline. Because of the absence of National Herbarium, Washington, D. c. 
_ Natural size. 
mature flowers the description of the 
stamens is erroneous in giving the filament as about equaling the anther 
in length. In a fully open flower the filaments would undoubtedly be 
much longer. A specimen of this species which was collected by Mr. 
A. G. Bagshawe (No. 1365) at Ngusi River, Albert Edward Nyanza, at 
an altitude of 970 meters, shows good fruits (see fig. 5). 
Aside from the usually but not universally broader winged petiole and 
rachis segments these specimens can scarcely be distinguished from 
Citropsis Schweinfurthii , and unless the flower and fruit characters prove 
to be different, Limonia ugandensis will doubtless have to be considered 
to be a synonym of C. Schweinfurthii. 
Besides the specimens from Uganda hitherto referred to Limonia 
ugandensis Baker, there are two specimens in the Dahlem Herbarium, 
1 “In dem dichten Untesholz fiel uns vor allem ein kleiner Buschmitdornigen Aesten auf. Von seinen 
lederharten Blattern spriesst eines aus dem anderen heraus. Seine Frucht ist eine kleine Orange mit 
mehreren Abtheilungen, aber nur zwei Kernen. Von unseren Eimonen unterscheiden sie sich durch den 
susslichen, jeder Saure entbehrenden Geschmack. ” (Stuhlmann, Franz. Mit Emin Pascha ins Herz von 
Afrika. p. 406. Berlin, 1894.) 
2 Engler, Adolf. Die Pflanzenwelt Ost-Afrikas. . . . Teil C, p. 229. Berlin, 1895. 
