LX. OLACINE^. 337 



Perianth ' single. Sepals 4-5 (rarely 6), distinct, or coherent in a campanulate or 

 tubular calyx, valvate in sestivation. Stamens 4-10 (rarely 12), often adnata to the 

 sepals, all anther if erous, or rarely some sterile {Olax, Liriosma) ; filaments free, or 

 very rarely monadelphous (Aptandra) ; anthers ereci, versatile or rarely adnate {Cathe- 

 dra, Lasianthera, &c.). Disk very various, free, or adnate to the calycule or ovary, 

 sometimes or inconspicuous. Ovakt free, or the base partially sunk in the disk, 1- 

 celled, or falsely 3-5-celled by imperfect septa, or very rarely truly 3-celled {Emmotum); 

 ovules anatropous, without coats and reduced to the nucleus, sometimes 2-3 (rarely 

 4-5), collaterally pendulous, either from the top of a central placenta, or from the 

 top of the ovarian cavity, and excentric (in consequence of the lateral union of the 

 placenta with the wall), rarely solitary and similarly pendulous [Opilia, Pennantia), 

 very rarely nearly erect and basilar (perhaps owing to the suppression of the placenta) 

 {Gansjera, Agonandra). Fruit mostly a drupe, 1-celled, 1-seeded, superior, or be- 

 coming inferior by the accrescence and adherence of the calycule. Seed with 

 fleshy copious albumen, which is entire or sometimes ruminate, lobed, or partite 

 {Aptandra, Gomphandra, &c.). Embryo small, at the top of the albumen, or nearly 

 as long as the albumen, and straight ; radicle cylindric, superior ; cotyledons small, or 

 large and foliaceous, entire or cut. 



Tribe I. OLAGE^. 



Stamens unequal in number with the sepals {Olax) or double {Ximenia, Heisteria, 

 &c.), or equal and opposite {Erythropalum, Anaeolosa, Strombosia, &c.). Ovary 1- 

 celled {Erythropalum, Olax, Ptychopetalum, &c.), or with 3-5 incomplete 1-ovuled 

 cells {Ximenia Heisteria, Liriosma, Schoepfia, Anaeolosa, Aptandra). Ovules pendu- 

 lous from the top of a central placenta. 



PEINCIPAL GENERA. 



Aptandra. Heisteria. Ximenia. Olax. Liriosma. 



Erythropalum. Strombosia. Cathedra. Anaeolosa. Schcepfia. 



Tribe II. OPILIEjE. 



Flowers isostemonous. Stamens opposite to the sepals. Ovary 1-celled, 1- 

 ovuled. Ovule basal, nearly erect. 



PEINCIPAL GENERA. 

 Cansjera. Agonandra. Lepionurus. OpUia. 



Tribe III. IGAGINE^. 



Flowers isostemonous. Stamens alternate with the sepals. Ovary l-celled, 



with 1-2 ovules pendulous from the top of the cell, very rarely with 3 perfect 1-2 



ovuled cells. 



PRINCIPAL GENERA. 



Lasianthera. Gomphandra. Desmostachys. Apodytes., Mappia. Emmotum. 

 Pennantia. Poraqueiba. Icacina. Platea. Villaresia. 



' Most authors regard the receptacular cup here alluded to as a calyx, and the calyx as a corolla. — Ed. 



7. 



