104 BOTANY OF THE VOYAGE OF THE SULPHUR. 
connatis in vaginam hinc fissam apice bidentatam, fructibus parvis sessilibus striatis basi hirtellis 
calycis dentibus minutis coronatis.—Cocos Island. 
Habitus et flores B. Guianensis, sed stipularum forma foliis angustis necnon fructibus parvis primo intuitu 
distincta. Ramuli, foliorum vene paginz inferioris, stipule et thyrsus pilis substrigosis villosa uti in ceteris 
speciebus Americanis, Stipulz semipollicares, rufo-membranacese, anguste, uno latere usque ad medium altero 
fere ad apicem connate. Folia brevissime petiolata, 4-5-pollicaria, longe et acute acuminata, basi parum 
angustata, obtusa, supra undique et subtus nonnisi ad venas glabra, punctis irregularibus crebris obscure 
pellucido-punctata, Thyrsus terminalis, breviter pedunculatus, 2-3-pollicaris. Flores quam in B. Guianensi 
paullo minores, minus villosi, tubo gracili, limbo campanulato, laciniis aristato-acuminatis. Fructus globosus, 
striatus, dimidio minor quam in B. Guianensi, demum fere glaber. Dentes calycini quam in affinibus multo 
minores. Semina B. Guianensis. 
353. BuENA macrocarpa, sp. n., (Plate XX XVIII.) foliis late ovalibus ellipticisve venosis 
obscuris, floribus 3-5-nis sessilibus, calycis limbo quam ovarium multo breviore, corolla pentamere 
laciniis ovali-oblongis obtusis.—Isle of Gorgona. 
Arbor speciosa, glabra. Ramuli crassiusculi, juniores subcarnosi. Folia ovali-elliptica, obtusa, basi cuneata 
et in petiolum 6-9-linearem anguste decurrentia, 3-4 poll. longa, 2-3 poll. lata, crassiuscula, atrovirentia, nec 
nitentia; venw utrinque 7-10, parallele, a costa media divergentes multo magis quam in B. trifiora et B. lati- 
folia prominentes. Stipule: membranaceo-foliacee, 4-6 lin. long. Flores ad apices ramulorum subsessiles. 
Bractex in speciminibus desunt, verosimiliter delapsee. Calycis limbus vix 1 lin. longus, breviter 5-dentatus, 
cito deciduus. Ovarium semipollicare. Corolle albide tubus bipollicaris, limbi lacinie 8-9 lin. longe, 
estivatione imbricata. Filamenta brevissima versus apicem tubi. Anthere lineares, fere omnino incluse. 
Stylus apice breviter exsertus, in lacinias 2 oblongas intus stigmatiferas dilatatus. | Capsula 3-4-pollicaris, sub- 
lignosa, teres, demum septicide bipartibilis, loculis intus dehiscentibus. Semina numerosissima, ala angustissima 
infra longe producta lineari-subulata subdentata, supra bipartita, laciniis longe lineari-subulatis subdentatis, 
This species differs from both of Ruiz and Pavon’s by the obtuse corollas, from 
B. iriflora and B. latifolia by the distinctly veined and not shining leaves, smaller 
flowers, and short limb of the calyx. The pod is of the shape of that of the closely 
allied genus Hiilia, but the seed is different. The Brazilian Buene figured by 
_ Pohl and by Endlicher do not belong to the genus. 
Plate XX XVIII. fig. 1, flower cut open ;* fig. 2, transverse section of the ovary; fig. 3, portion 
of one half of the capsule, the outer coating or pericarp having decayed away; fig. 4, seed: all 
magnified. : 
364. Exosremma (Pseudostemma) occidentale, sp. n., glabrum, foliis amplis obovato-oblongis 
cuspidatis basi longe angustatis, paniculis brevibus laxe pyramidatis, calycis limbo subintegerrimo, 
lo intus extusque glaberrime laciniis tubo paullo longioribus, stigmate bilobo. — Isle of 
orgona. 
Fratex elata. Ramuli teretes. Folia longiuscule petiolata, 8-10 poll. longa, supra medium 3-3} poll. lata, 
eine Jonge anguns superata, punctis sparsis pellucidis notata. Stipule a specimine jam delapse. Panicula 
Zmalis, breviter pedunculata, subquadripollicaris, laxe trichotoma, pauciflora, Bractese ad ramificationes 
_ parvee, ovato-lanceolate. Calycis tubus 2 lin. longus, oblongus ; limbus cyathiformis, brevis, integer vel obscure 
Nb witetaks ; aes 
_* By a mistake in the drawing the whole of the corolla is shown, and only half of the ovary and calyx. 
