THE HERBARIUM AMBOINENSE. 35S 
the sense usually adopted by botanists, the two plants dif- 
fering much less than many kinds of Apple (Pyrus mdlus), 
Dr Roxburgh (Hort. Beng. 37) did not distinguish them 
by the form, but by the colour of the fruit, calling those 
Psidium pyriferum which have a white fruit, and those 
P. pomiferum which have a red fruit. This, however, does 
not appear to have been the distinction of RumphiuSj who 
considered the kinds that are acid, and approach the crab 
or unimproved plant, as the Cujavus agrestis ; and the 
kind with a sweet fruit, much improved by cultivation, as 
the Cujavus domestica. There are a great many varieties, 
of both colours and forms, that have an excellent flavour, 
and must be considered as belonging to the latter. In 
India, although an exotic, the Cujavus agrestis, like the 
Pyrus malus in Scotland, has become a perfect forest or 
wood tree, the seeds having been scattered by birds, as they 
powerfully resist the organs of digestion. 
Cujavus silvestris, p. 144. 
Probably a variety of the Cujavus agrestis. 
Caput XLIII. 
Cujavillus, p. 145, t. 49. 
Burman, in his Flora Indica (114), called this Psidium 
ciijamllus ; but it was unnoticed by Linnseus. The Com- 
pilers of the Encyclopedic received from M. Sonnerat spe- 
cimens of a plant, which they called Psidium avigiistifolium, 
as synonymous for which they quoted the ciijavillus, with, 
however, some doubt. Vahl, as usual, changed the name 
of Burman into Psidium pumilum, quoting, without hesi- 
tation, the cujavillus for the plant he meant. Willdenow 
prefers the name of Vahl to both that of Burman and that 
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