[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:—

1. Very characteristic specimens of the bark, leaves, flowers, and capsules of C. Condaminea (C. Chahuarguera, Pavon). This kind yields the rusty crown bark of commerce.

2. Bark, leaves, and flowers of C. crispa, Tafalla, a kind which is included in the C. Condaminea, H. and B. It yields the quina fina de Loxa, or cascarilla crespilla.

3. Bark and leaves of C. Lucumæfolia of Pavon, from Zamora. This is the cascarilla de hoja de lucma of the natives. Mr. Cross made no attempt to collect the seeds, as this species is comparatively worthless.

[384] My collection of dried specimens is deposited in the museum and herbarium at Kew. It consists of leaves, flowers, fruit, and bark of C. Calisaya; leaves and flowers of C. micrantha; leaves and fruit of C. Caravayensis; fruit of Pimentelia glomerata; and bark from the branches of almost every species of chinchona and allied genera in the Caravayan forests.

Mr. Spruce's collection of all the parts of C. succirubra is in the herbarium at Kew.

Mr. Pritchett's collection of leaves, fruit, and bark of C. nitida, C. micrantha, C. Peruviana, and C. obovata, is in the possession of Mr. Howard.