CLXVI. AROIDE^E. (J. D. Hooker.) 491 



Leaves undivided ; ovules parietal 6. ARUM. 



Leaves various and flowers coetaneous ; ovules . 



basal 7. TYPHDNIUM. 



Leaves pedatipartite ; ovules basal and apical . .. 8. THEEIOPHONUM. 



Tribe II. PYTHONIEJE. Spadix witli or without an appendage. Stamens 

 free, anther-cells broader than their connective. Ovary 1- or more-celled ; 

 ovules anatropous or semianatropous. Tuberous herbs, often flowering 

 before leafing; leaves 3-sect, segments pinnatifid. 



Appendage naked ; neuters 9. AMORPHOPHALLTTS. 



Appendage slender, nked ; neuters below the males . '10. SYNANTHERIAS. 



Appendage covered with conical neuters 11. THOMSONIA. 



Appendage 0; neuters very large 12. PLESMONIUM. 



Tribe III. COLOCASIE.E. Spadix with or without an appendage, usually 

 shorter than the spathe. Anthers sessile, densely crowded, prismatic or 

 broad, free or connate, connective very thick. Leaves undivided, often 

 peltate. 



* Tube of spathe not enclosing the fruit. Fern. infl. partially adnate 

 to the spathe. 



Ovary many-ovuled ; stigma 4 -6-cl eft 13. AEIOPSIS. 



Ovary many-ovulcd ; stigma discoid 14. STETTDNERA. 



Ovary 1-ovuled ; stigma discoid 15. HAPALINE. 



** Tube of spathe enclosing the fruit. Spadix ^wholly free from the 

 spathe. 



Limb of spathe refracted, open ; ovules parietal . . ; 16. REMUSATIA. 

 Limb of spathe refracted, convolute ; ovules basal . . 17. GONATANTHUS. 

 Limb of spathe erect ; ovules many parietal .... 18. COLOCASIA. 

 Limb of spathe erect ; ovules few basal 19. ALOCASIA. 



Tribe IV. PHILODENDRE^E. Spadix without an appendage, usually 

 shorter than the spathe. Stamens free, rarely connate in a prismatic 

 body ; connective usually broader than the cells. Fruit enclosed in the 

 tube of the spathe. Perennial herbs, flowering and leafing at the same 

 time. 



Spathe deciduous ; ovary 1-2-celled * . 20. AGLAO-NEMA. 



Spathe wholly persistent ; ovary 2-4-celled .... 21. HOMALONEMA. 

 Limb of spathe deciduous ; ovary 1-celled 22. SCHISMATOGLOTTIS. 



SERIES B. Flowers hermaprodite, a few rarely unisexual. Perianth 0. 



Tribe V. CALLED. Spadix without an appendage. Stamens distinct ; 

 filaments flat, anther-cells terminal. Ovary truncate, stigma central. 

 Mostly climbers. 



Spadix stipitate ; ovule 1 basal ; berries free .... 23. ANADENDRON. ^ r 



Spadix sessile ; ovule 1-basal ; berries free . . i 24^ SCINDAPSUS. ie( j 



Spadix sessile ; ovary 1-2-celled, many-ovuled ; berries , O11S 



confluent 25. RHAPHIDOPHOBI V, % 



Spadix sessile. Ovary 1-celled ; ovules 2 or more * 



(rarely 1) basal 26. EPIPEBMNUM. 



