Travels in Peru and India by Sir Clements R. Markham
3. _Report of the Expedition to procure Plants and Seeds of the
315 words | Chapter 75
Chinchona succirubra_, by R. Spruce, Esq., Sept. 22, 1861.
[372] Letter from Mr. Pritchett to the Under Secretary of State for
India, dated July 9, 1861.
[373] Letter from Mr. Pritchett to the Under Secretary of State for
India, dated Dec. 13, 1860.
[374] Smyth's _Journey from Lima to Para_, p. 63.
[375] Herndon's _Valley of the Amazon_, p. 126.
[376] Herndon's _Valley of the Amazon_, p. 136.
[377] Smyth, p. 115; who says that, according to a register which had
been kept there, it rains at Casapi on more than half the days of the
year.
"From May to November the sun shines very powerfully in the valley
of Chinchao, and consequently the soil, when it is cleared of wood,
becomes so parched that its surface opens in chinks, but underneath
it always preserves humidity, and therefore needs no irrigation. From
November to May it rains much, sometimes six or seven days without
intermission."--Dr. A. Smith's _Peru as It Is_, ii. p. 57.
[378] Of the identity of the species collected by Mr. Pritchett there
is no doubt. He brought home specimens from the trees whence the seeds
were obtained, which have been examined by Mr. Howard, and proved to
belong to _C. nitida_, _C. micrantha_, and _C. Peruviana_. The barks
also have been found to contain a satisfactory percentage of alkaloids.
Some further particulars respecting these species have already been
given in chap. ii. p. 30-35.
[379] Pavon gives its height at from 18 to 24 feet, and 8 to 9 inches
in diameter.
[380] They yield the _crown bark_ of commerce.
[381] Seemann's _Voyage of H. M. S. Herald_, i. p. 177. For some
further particulars respecting the chinchona region of Loxa, see chap.
ii. p. 21-25.
[382] _Nueva Quinologia de Pavon._ _C. Chahuarguera_ and _C. crispa_.
[383] Mr. Cross transmitted the following dried specimens of the parts
of chinchona-trees from Loxa:--
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