Sierciilia.] 



XXIV. STERCULIACEiE. 



267 



I. Sterculia 



tube many, or rarely few free ; anthers in heads, or a single ring 

 on the top of the column, or along the edge of a cup or tube ; anther- 

 cells 2. Ovaries 2 to 5, free, rarely i ; ovules many or few attached 

 to inner angles of ovaries ; styles as many as ovaries, free or nearly 

 so. Fruit capsular or dry indehiscent. Tropics and subtropics 

 generally. Species 500 or more. 



i. Sterculie^. Trees often large ; flowers unisexual ; petals none ; 

 stamen-column with anthers on the apex, clustered or in a ring. 

 Calyx small, lobes tailed ; follicles coriaceous, 

 red ; seeds 2 or more, black pendulous on 

 edges ....... 



Calyx small, lobes lanceolate ; follicles very large 

 membranous, green, i seed at base of each . 

 Calyx campanulate ; follicles membranous, open- 

 ing before ripe ; seeds 2 in each 

 Calyx long tubular ; follicles membranous 

 Fruit of thick samaras with falcate wings 

 Fruit woody, indehiscent, keeled . 

 ii. Helictere.?;. Shrubs or medium trees 

 deciduous ; stamen column bearing a cup edged with anthers and staminodes, 

 5 to 15. 



Shrub ; flowers pink, capsule membranous in- 

 flated ....... 



Shrub ; flowers purple or white ; capsule woody 



not inflated ; seed not winged 

 Trees ; flowers large, white ; capsule woody, 

 large ; seed winged ..... 



3- 

 4. 



5- 

 6. 



flowers 



7- 



scaphium 



Pterocymbium 

 Erythropsis 

 Tarrietia 

 Heritiera 

 bisexual ; petals 



Kleinhovia 



8. Helicteres 



9- 



petals persistent ; 



Pterospermum 

 anthers 10 to 20 



10. Pentapetes 

 staminodes o. 



11. Melochia 



12. Waltheria 



iii. Dombeye^. Flowers bisexual 

 on the tip of a cup on the column. 



Herb ; petals red ...... 



iv. Hermannie^e. Flowers bisexual ; stamens 5 ; 

 Shrubby herb or shrub ; capsule 5-celled ; flowers 



pinkish ....... 



Shrubby; flowers yellow; capsule i -celled, 



I -seeded ....... 



V. Byttneri^. Petals clawed; filaments in a tube with anthers at top 

 Stamens i row in groups between staminodes ; 



petals clawed; shrub; capsule large bristly 

 Stamens in i row, solitary between staminodes ; 



petals clawed with 2 lateral lobes and a long 



appendage; climbers .... 



vi. Leptonychi.^. Petals not clawed. 

 Petals linear, simple ; stamens 5 ; staminodes 5 ; 

 tree ; capsule bristly .... 



Stamens in several series ; capsule not bristly ; 

 tree ....... 



Stamens in i circle, 6, connate in a cup at base 

 Stamens in a funnel-shaped tube ; anthers 5 . 



13- 



14. 



16. 

 17- 



Abroma 



Byttneria 



Commersonia 



Leptonychia 



Leptonychiop^is 



Peniculifera 



1. STERCULIA, Linn. 



Trees or shrubs. Leaves entire or lobed or digitate-compound. 

 Inflorescence panicled or racemose, axillary. Flowers male with 

 few bisexual or female. Calyx tubular, lobes acuminate or tailed, 



