connected with the Flora of Guiana. 237 
habit of the plant, notwithstanding its occasionally alternate leaves, and the 
structure of the stamens and ovarium, show a close affinity to Rhizobolee. 
It may, in short, be described, as far as can be ascertained without a know- 
ledge of the fruit, as a polygynous Caryocar with cohering petals and leaves 
often alternate. 
It is true that Meyer does not mention the coherence of the petals; but as 
he speaks of their concavity and the caducity of the corolla, it is probable he 
had not seen it open, and may possibly have merely separated the petals by 
force to ascertain their form. 
As a second genus of an order consisting hitherto but of five species, I sub- 
join a figure of the plant and the generic character, referring to Meyer's work 
for a detailed description of the species. 
ANTHODISCUS. 
Calyx breviter cupulæformis, margine obscure 5-lobo, persistens. Petala 5, 
concava, arcte cohaerentia, disco hypogyno inserta, per anthesin calyptræ 
more decidua. Stamina numerosissima, cum petalis disco hypogyno 
inserta, basi brevissime monadelpha, interiora breviora, omnia fertilia. 
Filamenta filiformia, tortuosa, minute glandulosa.  4ntherc ovate, bilo- 
culares, loculis rima longitudinali dehiscentibus. Ovarium liberum, de- 
presso-globosum, radiatim multi- (circiter 14-) loculare, loculis uniovu- 
latis, ovulis peltatis, latere interiore affixis. Styli tot quot loculæ ovarii, 
oblongi, incurvi, stigmatibus oblongis, terminalibus. ; 
Arbor Guianensis. Folia alterna, vel opposita, in caule articulata, trifoliolata, 
foliolis coriaceis lucidis. Pedicelli breves, uniflori, bibracteati. 
Species unica A. trifoliatus. G. W. F. Meyer, I. c. p. 194. 
Tas. XX. 
Hab. in Guiana Anglica ad ripas fluminum cages ae et Rupununy. 
utat i d Pl. ex. n. 512. 
VOL. XVIII. 2t 
