certain Plants formerly referred to the Genus Cinchona. 141 
In several species of the normal group of this genus the inner surface of the 
corolla is lined with a thick coat of hairs, analogous to the pili collectores 
which cover the branches of the style and the upper surface of the lobes of the 
corolla in many Composite. 
COSMIBUENA. Ruiz et Pavon. 
Buena. Persoon et DeCand. 
CINCHONÆ sP. Auctt. 
Calyx 5-dentatus. Corolla tubulosa, limbo 5-loba, æstivatione imbricata. 
Antheræ oblongæ, exsertæ. Stigma bipartitum. Capsula subquadrilo- 
cularis, ab apice dehiscens, polysperma. Dissepimenta e duplici valvarum 
margine revoluto seminifero constituta. Semina peltata, angusta, ramen- 
tacea, extremitatibus fibrosis. e 
Arbores (Amer. Merid.) inflorescentid cymosd. 
1. C. obtusifolia. Ruiz et Pavon. 2. acuminata. Ruiz et Pavon. 
In Buena hexandra of Pohl, which M. De Candolle has retained in this 
genus, the estivation of corolla is valvate, and the structure of the capsule 
apparently the same as in Cinchona, to which I am disposed to refer it. 
Whether, as Pohl has suggested, the Cinchona dichotoma of Ruiz and Pavon 
ought to be referred to the present genus I am unable to decide, the specimens 
being without flowers, as represented in the plate of the Flora Peruviana, 
although the structure of the capsule is pretty nearly similar to that of Cosmi- 
buena. - 
Having had no opportunity of examining any species of M. De Candolle's 
Remijia, I am uncertain whether it is entitled to be regarded as a distinct 
genus; but if it should prove different, other characters than those mentioned 
by that celebrated botanist must be looked for to distinguish it from Cinchona, 
as the peltate seeds are common to most of the genera now under considera- 
tion, and the description of the dehiscence of the capsule appears to have 
originated in a misconception of the account given by M. Auguste de St. Hi- 
laire. 
