OF ARTS AND SCIENCES. 49 



crassis eestivatione valvatis. Petala 5, inappendiculata, sestivatione 

 imbricata. Discus hypogynus, annularis, crenatus. Stamina creber- 

 rima, discreta : anthcras biloculares. Ovarium sessile, oblongum, 

 biloculare, pilis parcis circumdatum, stigmate sessili retuso coronatum, , 

 multiovulatum, fl. masc. effoetum sa^pissime exovulatum. Capsula 

 latissime obcordato-rhomboidea, bilocularis, dissepimento contrarie 

 compressa, marginibus alata, ab apice loculicide bivalvis, polysperma. 

 Semina lenticulari-globosa, hinc impressa, margine pilis praslongis 

 crinita ; testa fragili laxa. Embryo albumine carnoso vix brevior; 

 cotyledonibus orbiculatis planis radicula sequilongis. — Arbor ; foliis 

 ovalibus integerrimis ; stipulis caducis ; floribus in cymulis axillaribus 

 parvis. 



DicLiDOCARPUs RicHii. — Feejcc Islands. 



DRAYTONIA, Nov. Gen. Ternstroemiacearum. 



Calyx ebracteolatus, 5-partitus, imse basi ovarii tantum accretus, per- 

 sistens ; sepalis inaequalibus aestivatione imbricatis. Petala 5, obovata, 

 sestivatione convoluta vel convoluto-imbricata. Stamina plurima ; 

 filamentis basi dilatatis breviter monadelphis : antherce biloculares, 

 dorso affixoe incumbentes, loculis apice rima introrsa hiantibus. Ova- 

 rium triloculare (rarius 4 - 5-loculare) : stylus unicus : stigma obtuse 

 trilobum. Ovula in placentis incrassatis, e loculorum angulo centrali 

 prominentibus, plurima, anatropa. Capsula subcarnosa, trilocularis 

 (rarius 4- 5-locularis), apice loculicide trivalvis ? loculis polyspermis. 

 Semina reticulato-scrobiculata. Embryo in axi albuminis carnosi, 

 eodem dimidio brevior, subcylindricus ; cotyledonibus brevibus semi- 

 teretibus. — Arbuscula Sauraujce facie et affinis ; sed differt, stylis in 

 unicum coalitis, ovario triloculari ima basi calycis connate, disco nullo. 



Draytonia rubicunda. — Feejee Islands. The genus is dedicated 

 to Mr. Joseph Drayton, the principal artist of the Expedition. 



RHYTIDANDRA, Nov. Gen. Olacacearum. 



Flores hermaphroditi. Calyx parvulus ; tubo cum ovario connate ; 

 limbo cupulari truncate, margine 6 - 7-denticulato. Corollse epigyna 

 petala 6-7, linearia, conniventia, sestivatione valvata. Stamina 6-7, 

 petalis alterna, libera : filamenta brevissima, intus barbata : antherEe 

 lineares, introrsum adnatse, dithecse, 4-locellat8e, locellis annulato- 



VOL. III. 7 



