Tab. 6239. 
COSMIBUENA oprusIFoLia, var. LATIFOLIA. 
Native of New Grenada: 
Nat. Ord. ,RupIace£.—Tribe CINCHONEE. 
Genus CosmiBuENA, Ruiz et Pav. (Benth. et Hook. f. Gen. Plant., vol, ii., p. 40). 
CosMIBUENA obtusifolia ; glaberrima, foliis late elliptico-ovatis obtusis coriaceis 
stipulis magnis oblongis, floribus subeorymbosis pedicellatis, calycis limbo 
cylindraceo inzqualiter 5-dentato v. 5-lobo, corolla albz tubo elongato fauce 
ampliato, limbi lobis oblongis apicé rotundatis imbricatis, antheris sessilibus 
apicibus exsertis, disco conico truncato, stigmatibus brevibus obtusis. | 
C. obtusifolia, Ruiz et Pav. Fl. Per. et Chil., vol. iii., p. 3. 
Buena obtusifolia, DC. Prod., vol. iii, p. 356; Klotzsch. in Hayne Arzneig., 
vol. xiy., t. 15. 
Crncnona grandiflora, Rutz et Pav. l.c., vol. ii., p. 55, t. 198. 
Var. latifolia, calycis limbo cylindraceo 5 lobo lobis oblongis obtusis. 
Buena latifolia, Benth. Plant. Hartweg., p. 191; Walp. Rep., vol. vi., p. 69. 
This handsome plant seems to be widely. spread in the hot 
valleys of the Andes of Cauca in New Grenada to Tarapoto 
in Peru, forming a beautiful small tree, twenty to thirty feet 
high, with white fragrant flowers and a slightly bitter bark. 
It varies very much in the size and form of the calyx-limb, 
so much, in short, that I long hesitated before referring the 
form here figured with that figured by Ruiz and Pavon, in 
which the calyx-limb is not half the size, and has short, very 
acute teeth. Specimens from nine different localities preserved 
in the Kew Herbarium display an almost perfect transition 
from a calyx-limb upwards of half an inch long with 
obtuse lobes, to one not one-sixth of an inch long with acute 
teeth. The flowers, too, vary greatly in size. Those of aa 
latifolia are the largest of any, and most numerous 1 the 
corymb. In the “Genera Plantarum,” vol. ii., p. 40, I Can 
described the estivation of the corolla as contorted and - 
twisted either to the right or the left ; in the fresh specimens 
I find them to be twisted and imbricate, whence 1 suspect 
JuLy lst, 1876, 
