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and its colour so striking, that it cannot be in any way con- 
founded with the rexa verdadera Huunuco.* 
The Quinquina to which the name of Huanuce has been given, 
“was first known in Spain in 1799, and was brought by the fri- 
gate La Vilez, which landed 180 chests of it at Santander. 
M. Ruiz, who was appointed to examine this cargo, found in 
the chests a thick bark, till then unknown to the botanists of 
Peru, mingled with the barks of the C. nitida and the C. lanceo- 
lata, and with those of the species which Tafalla has designated by 
the term similar to Calisaya. He concluded from this mixture, | 
that the Huanuco must be regarded as a new Peruvian species, 
and that, united with other barks in certain proportions, it might 
compose a powder of middling quality. The subsequent mis- 
sions were not so carefully attended to; for M. Ruiz discovered 
in them a quantity of barks of inferior estimation to the former. 
On all these barks we are about to treat, commencing with that 
which has been particularly designated Huanuco. 
A ae Bark, designated particularly by the name of 
Huanvco. 
The surface very rough, with accel fissures ‘near each 
other ; some lichens ; epidermis pretty slender, blackish, and ‘al- 
most tasteless; it separates easily from the bark in small scales; 
* The quantity of Quinquina obtained annually from Peru, -or which is wasted by the bad 
method of extracting the bark; the custom of felling trees without providing a substitution 
of them, instead of stripping them in part and profiting by new shoots:—these constitute 
‘the principal cause of the scarcity of the fine species, and of the introduction of a great num- 
‘ber of new species which the Cascarilleros think proper to introduce, without having any idea 
of botany, and in thé mere routine of their station, frequently even in subservience to their 
interests, It is the pescipie of commerce to turn all to advantage, and we are inundated 
