434 
Journal of Agricultural Research 
Vol. I, No. 5 
Willdenow described the leaves as oblong. This Baumann specimen 
shows an axillary inflorescence comprising some 6 to 8 flowers with 
slender ovaries (io to n mm.) and very slender styles somewhat like 
Ciiropsis mirabilis. The leaves of the Baumann specimen have more 
broadly winged petioles than the C. mirabilis , and doubtless because of 
this it was referred in the Dahlem collection to C. Preussii , from which it 
differs in the distinctly shorter, more slender style, the narrow smaller 
leaflets, and the broadly rounded tips of the winged petioles and seg¬ 
ments of the rachis. The flowers in the Baumann specimen are more 
densely clustered and shorter pediceled than in C. mirabilis . 
It is to be hoped that more complete material collected by Isert may 
be found in the Copenhagen Herbarium which will permit the affinities 
of this species, the first of the group to be discovered, to be determined 
with exactitude. 
Besides the foregoing, there remain two more African species of 
Limonia which undoubtedly belong to Citropsis, but which can not as 
yet be satisfactorily placed because of insufficient material. These are 
Limonia Poggei , var. laiialata De Wild., doubtless distinct from L. Poggei y 
and Limonia Demeusei De Wild. Both have been described and beauti¬ 
fully figured. 1 
In addition to the material cited, specimens are to be found in the 
various European herbaria and in the National Herbarium at Washing¬ 
ton, D. C., which it has been impossible to place, owing to the lack of 
flowers or fruits. This additional material represents collections, prin¬ 
cipally from Congo, by Auguste Chevalier, 13 m. and M. Laurent, Demeuse, 
L. Gentil, and others. 
POSSIBLE USES OF THE AFRICAN CHERRY ORANGES 
The bringing to light of a new genus belonging to the true-orange group 
opens up a new field for the plant breeder, especially as some of the 
species are said to bear delicious fruits in abundance. 
The unusually large compound leaves—often with five leaflets, each 
one of them larger than any ordinary orange leaf—give several of the 
species of Citropsis a distinct advantage over any other member of the 
true orange group. Large leaves are an outward and visible sign of an 
active assimilating system, and it must not be forgotten that over three- 
fourths of the dry substance of a plant is made up of starch, sugar, oil, 
flavoring matter, and other substances manufactured in the leaves, and a 
species with large leaves is equipped with the first essential for rapid 
growth and for developing sweet fruits of high flavor. 
1 Wildeman, Lmile de. Etudes sur la Flore du Bas- et du Moyen-Congo. In Ann. Mus. du Congo, Bot. 
s. 5, v. i, p. 159-160, pi. si, 53* 1904. 
Bimonia Poggei, var. latialata. In Card. Chron., s. 3, v. $3, no. 1380, p. 378, fig. 159, June 7, 1913. 
