lected by him in India, and distributed by Wallich (Cat. 
n. 6386), which is probably the same species. C. Limonellus 
is also described by Miquel, who says that it is cultivated 
everywhere in the Dutch East Indies. 
Curiously enough, whilst Rumph describes the petals as 
five, he figures invariably four, and this and its other 
characters indicate his plant being the same as the Rung- 
pore Lime of Bengal, the sixth variety of Roxburgh’s C. 
acida, which includes the Sweet and Sour Limes (not the 
Lemon), characterized as a small bush with a small pinkish 
flower, usually four petals, and a perfectly spherical fruit, 
having a thin skin of a lively yellow colour and pale acid 
juice. Dr. King has had the kindness to send me copies 
of Roxburgh’s drawings of the Limes cultivated by him in 
the Calcutta Botanical Garden, and they confirm this 
identification, both as to flower and fruit. This plant is 
very well figured by Wight as C. Limetia, Risso (Icones, 
t. 958), who says it is certainly wild in the Nilgherry 
Hills, forming a low erect thorny shrub, with a profusion 
of fragrant white four-merous flowers-; he adds, however, 
that the juice is “‘ watery acid, sweetish, or occasionally 
slightly bitter’ (a. variation not likely to occur in a native 
lant). 
When preparing the “ Forest Flora of Central and North- 
Western India,’ Dr. Brandis asked me to help him to settle 
the synonymy of the genus Citrus, so that it should be in 
harmony with the “ Flora of British India,” and after a 
long study we concluded that the various forms grouped 
themselves under three generally recognized species, of 
which two were indigenous to India, and one had been 
introduced. The native are C. medica (the Citron, Lemon, 
and Limes), and C. Awrantium (the Oranges and the 
Bergamotte) ; the third, C. decumana, Willd., is assumed 
to have been derived from Polynesia, and is the Shaddock 
(Pumalo, Pomplemoes, sometimes called Forbidden Fruit). 
1 think this arrangement holds good, except possibly in 
the case of the Bergamotte, which has the highly-scented 
skin of the Oranges, but its pale-coloured skin and subacid 
juice are those of the Limes. 
Turning to the West Indies, which is the great second 
home of the Lime and the principal area of its cultivation, I 
find it described by the exact McFadyen as C. Lima, McF., 
