CALISAYA BARK. 
101 
Leaves oblong or ovate lanceolate, each subacute, or a 
little obtuse, slightly rigid ; the upper, especially, more or 
less concave, boat-shaped, glabrous, or on the under side 
pubescent tomentose, prettily green, both nerves and petioles 
sanguineous. The panicle, both flower and fruit bearing, 
interrupted. Corolla a little longer than in the preceding 
variety. Slamina at the bottom of the tube, filaments either 
short asin the Calisaya vera, the style at the same time being 
longer, or the anthers being long are subexserted, the style is 
shorter and surmounted by them. The capsule, as in the 
type, somewhat longer than the flower, and not unfre- 
quently more or less attenuated above, towards maturity, 
beautifully rubescent as well as the branches of the panicle. 
Teeth of the crown a little elongated and beautifully patent. 
It more frequently occurs in mountain meadows of the 
same regions than the preceding, and, I may say, is the 
sole kind peculiarly an ornament to them. 
It is to this species that we owe the most important of 
the barks employed therapeutically, known as Calisaya, 
the origin of which has hitherto been unknown. 
The etymology of the term Calisaya is obscure, Hum- 
boldt thought that it came from the province from which 
the bark was principally derived, but persons well informed 
with respect to the country, informed me that no such pro- 
vince existed. In the department of La Paz, moreover, it 
was found abundantly, and frequently went by the name of 
Colisaya, or of Calisaya, and I am disposed to believe that 
these designations have been applied to it in consequence 
of the red color assumed on drying the external surface of the 
denuded bark, or of that which the leaves sometimes have. 
Colli, signifies in effect red in the Quichua language : and 
saya, taken figuratively, means sort or form. The red 
maize is called Colliscara or Culli. 
I have stated that this tree, so far, has not been met with 
in Peru, except in the southern part of the province of Cara- 
baya ; the results at which I have arrived, in searching to 
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