CINCHONACEJE. 



Ruiz quinoL 74. Close ill ventilated groves in the hotter 

 parts of the foot of the Andes near Pozuzo and Panao 10 leagues 

 from Huanuco. R. and P. 



Branches 4-cornered, thick, smooth, except towards the ends where 

 they are hairy rather than tomentose. Leaves large, thin, ovate-oblong, 

 when young velvety on the underside with a short thick felt, which 

 falls off as the leaves grow older, smooth on the upper side ; when full 

 grown obtuse, or rather acute, at the base, with smooth petioles and 

 shaggy axils to the under veins; the uppermost leaves almost cordate. 

 Peduncles thick, quadrangular, tomentose, branched in the axils of the 

 upper leaves, and leafy at their own base, forming a coarse compound 

 panicle. Flowers sessile, or nearly so, in thick clusters. Calyx very 

 tomentose, except the limb, which is smooth, thick, campanulate, 

 5-toothed, and apparently deep purple. Corolla purple according to 

 the Flora Peruviana, tomentose, with a spreading, white, shaggy limb. 

 Of this Mr. Lambert's herbarium contains 3 specimens just passed 

 flowering ; along with which are glued down some oblong, rather 

 strongly ribbed fruits, which are very obtuse at eaeh end. As they do 

 not correspond well with the figure and description in the Flora Peru- 

 viana, perhaps they do not belong to the specimens. According to a 

 memorandum in M. Bonpland's handwriting in Mr. Lambert's herba- 

 rium, this was considered by the former botanist as a variety of 

 C. cordifolia of Mutis. It is however perfectly distinct both from that 

 species, and the C. pubescens of Vahl. Ruiz states that this is called 

 in Panao Cascarillo con corteza de color de Pata de Gallareta. The bark 

 is not employed in commerce, but it has been used in preparing the 

 extract of Cinchona by the factors of Panao. It is added by Pavon in 

 the Quinol. suppl. p. 18. that it is identical with C. cordifolia of Mutis, 

 the Quina Amarilla of Santa Fe ; but Ruiz in his MSS. does not confirm 

 this ; on the contrary he is unable to say what species produces the 

 Quina Amarilla or Q. Baya de Santa Fe, and he speaks of this species, 

 the Pata de Gallareta as quite a distinct kind, of the lowest quality. 

 According to Bergen this is the origin of the Jden, corrupted into Ten 

 bark or Ash bark of commerce ; but this is very doubtful ; there is no 

 proof of its growing about Jaen. 



837. C. rotundifolia Ruiz and Pavon MSS. in herb. Lambert. 

 Lambert illustr. cinch, p. 5. Loxa in Quito Pavon. 



Branches clothed with a short thick fur towards the extremities. 

 Leaves roundish-oblong, obtuse, but not cordate, at the base, hardly 

 acute, thin, quite naked on the upper side, except along the midrib, on 

 the under side soft with down, not pitted, with the short petioles and 

 veins covered with a close thick fur. Peduncles corymbose, tomentose, 

 in the axils of the upper leaves, forming a close leafy thyrse. Flowers 

 sessile, in very dense clusters. Calyx tomentose, with a short 5-toothed 

 limb. Corolla tomentose, rather funnel-shaped, with the tube about 4 

 times as long as the tube of the calyx; the segments of the limb shaggy 

 inside. I have only seen 2 specimens in Mr. Lambert's herbarium. 

 The species is perfectly distinct from all pthers; but I know not if the 

 2 separate, narrow, cinnamon-coloured unribbed capsules in that col- 

 lection really belong to the specimens. It is most nearly allied to 

 C. ovata, from which it differs in its thinner, and oblong not ovate leaves, 

 in its tomentose petioles, smaller panicles, hoary calyx cup, and, if the 

 fruit may be trusted, in that respect also. 



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