allied to the Natural Order Burmanniaceæ. 543 
floribus unibracteatis, bracteis pedicellis oppositis, perianthio medio haud 
constricto: laciniis obtusioribus, capsulà 6-costatà apice dehiscenti. 
Sir William Hooker, in his Icones Plantarum, tab. 254, has figured the first- 
mentioned species of Dictyostega under the name of Apteria orobanchioides ; 
but it will be seen that this eminent botanist was under a mistake in referring 
the plant to Apteria, owing perhaps to the imperfect description given of that 
genus by Mr. Nuttall. 
2. CYMBOCARPA. 
Char. Diff. Perianthium tubulosum, ovario adnatum, supernè liberum : Zimbo 
6-fido, laciniis tribus alternis minoribus. Stamina omnind Dictyostege. 
Stylus simplex. Stigma trilobum; lobis gibboso-rotundatis, corniculis 
2 subulatis erectis instructis. Ovarium gibboso-trigonum, uniloculare, 
placentis tribus parietalibus. Capsula 1-locularis, latere unico ad angu- 
lum superiorem tantùm dehiscens. Semina numerosissima, scobiformia ; 
testa reticulata nucleum vix superante. 
Char. Nat. Perianthium monophyllum, tubulosum, petaloideum, subgibbo- 
sum, persistens, inferné ovario adnatum, superné liberum, angustatum, 
ore ampliato: limbo 6-diviso, laciniis erectis, inæqualibus, 3 exterioribus 
(sepalis) acutis, sinubus rotundatis, 3 interioribus (petalis) subunguicu- 
latis, brevioribus, ovalibus. Stamina 3, omnind Dictyostegæ. Stylus 
rectus, tenuis, trigonus, persistens, longitudine staminum. Stigma tri- 
lobum; /obis gibboso-ovatis, divergentibus, utrinque appendice longo 
subulato erecto incurvato auctis. Ovarium adherens, subpyriforme, 
inæqualitèr trigonum, apice libero conico, uniloculare, placentis tribus 
parietalibus multi-ovulatis. Pericarpium capsulare, perianthio marces- 
cente obtectum, oblongum, gibbosum, trigonum, angulis rotundatis, uni- 
loculare, seminibus minutissimis e placentis tribus parietalibus radian- 
tibus densé refertum, angulo superiore lacerato hians. Semina minuta, 
oblonga, scobiformia, apice attenuata; testà nucleo conformi, reticulata, 
areolis elongatis angustissimis, costis valdé prominulis; funiculo tenui 
ejusdem longitudinis. 
Plante (brasilienses) rhizocarpæ, radice fibrosd, caule simplici subflexuoso erecto. 
Folia sessilia, bracteiformia, erecta, aut adpressa. Inflorescentia dichotomé 
