certain Plants formerly referred to the Genus Cinchona. 143 



LUCULIA. Sweet. 



CiNCHONiE SP. Wall. 



Muss^NDiE SP. Don, Prodr. Fl. Nep. 



Calyx 5-partitus : lacinils foliaceis. Corolla tubulosa, limbo 5-loba, testiva 

 tione imbricata. Stamina subinclusa. Antherce lineares. Stigma bi- 

 partitum. Capsula bilocularis, ab apice septicido-dehiscens, poiyspeima. 

 Semina peltata, samaroidea, margine membranaceo lacero. 



Arbores (nepalenses) itifiorescentid cymosd, bracteatd. 



1. L. gratissima. Sweet. (Cinchona fValL). 2. cuneifolia (Musssenda Prodr. 

 Fl. Nep.). 



PINCKNEYA. Mich. 



Cinchona sp. Poir. 



Calyx 5-partitus ; lacinid alterd maxima, foliacea, colorata. Corolla tubulosa, 

 limbo 5-fida, sestivatione valvata. Stamina exserta. Antherce peltatae. 

 Stigma emarginatum. Capsula bilocularis, septicido-dehiscens. Semina 

 compressa, margine membranaceo-alata, basi emarginata inserta. 



Arbor (Amer. Bor.) inflorescentid cymosd, bracteolatd. 



1. P. pubeus. Mich. 



It will be seen that the aestivation of corolla affords an important mark in 

 distinguishing these groups, which are well defined and very natural. So little 

 has this character been attended to among the Rubiacece, that even the illus- 

 trious Humboldt has included Lasionema among the synonyms of his Cin- 

 chona Condaminea, and M. De Candolle, who appears to have seen samples of 

 it, still continues to place it in that genus, from which it is widely different, 

 not only in the imbricate aestivation of its corolla, but also in the structure of 

 the stamens and dehiscence of its capsule. The plate in the Flora Peruviana 

 is a very faithful likeness of the plant, the structure of the stamens and the 

 aestivation of corolla being there correctly represented. 



