xxxix. OLACINEJE. (Maxwell T. Masters.) 573 



elsewhere. Griffith, Miers, and following them Baillon, Engler, and others, consider 

 the Icacinece to form a separate Order, an arrangement probably more natural than 

 that which is here followed on the ground of expediency, though Oliver's genus 

 Pteleocarpa is to some extent intermediate. 



TRIBE I. Olaceae. Stamens anisomerous, or equal and opposite to the 

 petals. Ovary 2-3-5-celled at the base, 1-celled at the apex, or completely 

 1-celled j ovules pendulous. 



* Fertile stamens anisomerous or twice or thrice the number of the petals. 



Leaves alternate. Fertile stamens 10 1. XIMENIA. 



Leaves alternate. Fertile stamens 3-5 2. OLAX. 



Leaves alternate. Fertile stamens 12-15 3. OGHANOSTACHYS. 



Leaves opposite. Fertile stamens 10 4* CTENOLOPHON. 



** Fertile stamens isomerous with and opposite to the petals. 



Calyx adherent to the fruit. Staminodes 5. Ovary 1-celled . 5. ERYTHROPALUM. 



Calyx adherent to the fruit. Staminodes 0. Ovary 3-5-celled . 6. STROMBOSIA. 



Calyx not adherent to the fruit. Staminodes 5. Ovary 1-celled 7. ANACOLOSA. 



Calyx adherent to the fruit. Staminodes 0. Ovary 3-celled . 8. SCHGEPFIA. 



TRIBE II. Opilieae. Stamens isomerous, opposite to the petals or lobes 

 of the perianth. Ovary 1-celled, 1-ovuled. 



* Flowers monochlamydeous. 



Bracts small. Staminodes 5. Ovule erect 9. CAXSJERA. 



Bracts conspicuous, hop-like. Staminodes 0. Ovule pendulous 10. LEPLONURUS. 



** Flowers dichlamydeous, 

 Staminodes 5 . 11. OPILIA. 



TRIBE III. Icacineae. Stamens isomerous, alternate with the petals. 

 Ovary 1-2-celled, with 1-2 ovules pendulous from the top of the cell ; 

 rarely perfectly 2-3-celled with 1-2 ovules in each cell. 



* Calyx cup-shaped^ denticulate, valvate. 



Petals glabrous within. 



Filaments bearded, hairs curving over the anther ; anthers 



adnate. Style subulate 12. LASIANTHERA. 



Filaments glabrous or with short hairs only ; anthers pendu- 

 lous. Stigma discoid 13. GOMPHANDRA. 



Filaments glabrous ; anthers innate, sagittate at the base. 



Ovary oblique 14. APODYTES. 



Petals villous within. Ovary ovoid 15. MAPPIA. 



** Calyx deeply 5-parted, lobes imbricate. 



Flowers unisexual. Ovary 1-celled 16. PHLEBOCALYMNA. 



Flowers hermaphrodite. Ovary 2-celled. Fruit dry, winged . 17. PTELEOCARPA. 



TRIBE IV. Fhytocreneae. Flowers (except in lodes] and fruit as in 

 Icacineae. Embryo more developed, cotyledons broad fleshy or foliaceous. 

 Climbers. 



Stamens alternate with the petals. 

 Flowers capitate. 



Drupe echinate or bristly. Albumen deeply lobed . . .18. PHYTOCREXE. 

 Drupe smooth. Albumen slightly lobed 19. MIQUELIA. 



