on the Hortus Malabaricus, Part IV. 167 
sible of this error, and classed it with the Coru, of which, as I have said in 
treating of the Mal Naregam, the prototype is probably the Feronia Elephan- 
tum of modern botanists. 
In commenting on the Mal Naregam, I have already mentioned the error 
into which the elder Burman fell by quoting this plant for the Walhedi or 
Jakuawa of the Ceylonese, which, from the synonyma of Rumphius and Sloane, 
seems to be rather the small-fruited Citrus, called Lime by the English. Lin- 
nzeus seems to have been aware of this, and therefore joined the Tsjerou Katou 
Naregam with the Diwul or Giwul, although by an error, probably typogra- 
phical, he quotes plate 12 in place of 14. On this subject I have in this com- 
mentary made already some remarks. The Tsjerou Katu Naregam, or Diwul, 
Linnzeus in the Flora Zeylanica (175.) considered as a species of Schinus, thus 
placing it in the order of Terebinthacee; but from his synonyma we must 
reject those of Burman and Sloane, which belong to the small-fruited Citrus. 
The younger Burman having become sensible that the Tsjerou Katou Nare- 
gam could not be a Schinus, the fruit of which is a drupa, formed a new genus, 
which he called Lzmonia, and in this he included this plant and another, since 
called Triphasia, and thus returned to the old system of placing it among the 
Aurantic, which shows how nearly the Aurantie and Terebinthacee are allied. 
The Tsjerou Katou Naregam may therefore be most justly considered as the 
real prototype of the genus Limonia, and is perhaps still the only species pro- 
perly belonging to it, several, at least, of those since annexed by Linnzeus and 
others having both a very different character and appearance. Burman, in- 
deed, added as synonymous the Anisifolium or Boa Balangan of Rumphius 
(Herb. Amb. ii. 133. t. 43.), which, however, that excellent botanist merely 
says has the same habit (foliatura) with the Tsjerou Katou Naregam ; and the 
elder Burman, in his explanation of the plate (43.), points out essential dif- 
ferences. We may infer, from Linnzeus quoting the plant of Rheede alone for 
his plant, that it was this he meant; and as Burman’s Limonia acidissima is 
the Schinus of Linnzeus, it cannot be the Anisifolium, although Willdenow 
continues to join them (Sp. Pi. ii. 572.). Yet, that even he means the Katou 
Naregam alone, may be inferred from his describing the fruit * Bacca trilocu- 
laris, seminibus solitariis." The Anisifolium is now considered as forming a 
distinct genus, and is called Feronia Elephantum (Enc. Méth. Suppl. ii. 630. ; 
