WESTERN TROPICAL AMERICA. 99 
Species AM, splendenti affinis. Folia angustiora, acumine minus abrupto. Panicule latiores, ramosiores. 
In omnibus cum descriptione Schlechtendalii convenit, nisi paniculis vix bipollicaribus. Ovarium complete 
biloculare, ovulis in quoque loculo 2, prope basin affixis. 
317. Gustavia angustifolia, sp. n., foliis anguste oblongis acuminatis apice remote serrulatis 
basi longe angustatis sessilibus, florum fasciculis terminalibus, calycibus integris petalisque 6-7 extus 
tomentoso-puberulis.— Columbia. 
Ramuli crassiusculi, cortice albido. Folia suppetunt pedalia et sesquipedalia, superne 2-4 poll. lata, basi 
longe angustata, membranacea, utrinque viridia et pube minuta rara scabriuscula, obscure pellucido-punctata, 
costa venisque subtus prominulis. Pedicelli complures ad apicem rami congesti, pollicares, tomentoso-puberuli. 
Bracteze sub pedicellis 4-5 lin. longs, lato-lanceolate,, acute, subcartilaginee. Bracteole supra medium 
pedicelli 2, minute. Petala seepius 6, vix pollicaria, exteriora ovata, interiora oblonga, omnia obtusa. 
CuCURBITACER. 
318. Bryonta attenuata, Hook. et Arn. Bot. Beech. p.424.—Acapuleo. 
319. Momorpica? guinquefida, Hook et Arn. 1. c.—Acapulco. 
320. Momorprica? sp., with male flowers only.— Guayaquil. 
321. APopANTHERA gracilis, sp. n., caule tenui puberulo vel glabrato, foliis profunde cordatis 
acuminatis integris vel obscure 3-5-angulato-lobatis margine subciliatis, supra glabriusculis punc- 
tulatis, subtus pilosiusculis, floribus longe pedunculatis, masculis paucis racemoso-corymbosis, 
foemineis solitariis, fructibus ovato-globosis glabris.—Isle of Taboga, Salango. 
Folia bipollicaria, acumine longiusculo, Pedunculi masculi et foeminei ex iisdem axillis gracillimi, petiolo 
longiores, Flores masculi ad apicem pedunculi pauci, breviter pedicellati. Calyx tubulosus, extus puberulus, 
breviter 5-dentatus. Petala lata, acutiuscula, integerrima, brevissime ciliato-puberula. Stamina medio tubo 
inserta mediantibus filamentis tribus brevissimis et sic revera triadelphica ; antheree oblong, omnes inter se 
leviter coherentes. Discus cupuliformis in fundo calycis. Calyx floris fceminei latius tubulosus, sub- 
campanulatus. Petala quam in mare latiora. Discus cupuliformis similis nisi duplo major. Stylus brevis, 
crassus, in lobos 3 stigmatosos acutos non fimbriatos divisus. Ovarium junius uniloculare? mox placentis 
hine inde intromissis spurie septatum ; ovula pauca, parietibus sine ordine affixa. Pepo, in speciminibus nondum 
maturus, fere globosus. 
I am unacquainted with the A. Mathewsi named but not described by Arnott, 
and therefore am unable to say whether this be the same species, though it is 
undoubtedly a congener. The genus ought, perhaps, to be considered only as a 
section of Melothria, and, in general appearance, the present plant closely 
resembles the Brazilian M. fluninensis, Gardn.; my specimens of the latter are 
too imperfect to show the structure of the flower. bats 
322. CyciantueEra leptostachya, sp. n., glabra, caule gracillimo, foliis pedatim 7-9-sectis, seg- 
mentis petiolulatis oblongo-lanceolatis grosse dentatis extimis brevioribus subincisis, racemo masculo 
longissimo gracili corymbulis remotis, flore foemineo longe pedunculato.—Salango. . 
