162 



STYRACACEAE. 



Key to genera. 



1. Ovary superior ... 

 Ovary inferior .. . 



2. Seeds winged ... 

 Seeds wingless ... 



1.— SYMPLOCOS. 



Key to species. 



1. Stamens connate 

 Stamens free 



2. Leaves mostly hairy above ; calyx 



villous 

 Leaves all glabrous above 



3. Flowers in sessile or stalked fascicles.. 

 Flowers in racemes or spikes ... 



4. Branchlets glabrous 



Branchlets pubescent or ferrugineous.. 



5. Calyx lobes twice the length of the tube 

 Calyx lobes equal to the tube 



6. Leaves entire ... 

 Leaves toothed ... 



7. Leaves soon glabrous on both sides 

 Leaves villous beneath 



8. Lower flowers in raceme sessile or sub 



sessile 

 Lower flowers distinctly stalked 



9. Leaves rounded above ... 

 Leaves acuminate 



10. Adult leaves glabrous ... 

 Adult leaves hairy beneath 



11. Flowers in terminal and axillary 



panicles 

 Flowers in axillary racemes . 



12. Midrib prominent above 

 Midrib impressed above 



13. Leaves 4 inches or more long 

 Leaves less than 4 inches long 



14. Leaves li inches wide or less . 

 Leaves usually more than 1^ inches 



wide... 



15. Calyx hairy 

 Calyx glabrous 



16. Adult racemes glabrous 

 Adult racemes pilose . . . 



17. Twigs hairy 

 Twigs ferrugineous and hairy 



18. Adult leaves chartaceous 

 Adult leaves coriaceous 



19. Racemes much compound 

 Racemes simple or nearly so 



1. Symplocos. 



2. Alniphyllum. 



3. Sti/rax. 



1. confusa. 



2. 



2. sinica. 



3. 



4. 



8. 

 5. 

 7. 



3. congesta. 



6. 



4. mspidata. 



5. adenopus. 



6. glandulifera. 



7. Fordii. 



9. 



18. 



8. propinqiui. 



10. 

 12. 

 11. 



9. ferruginea. 

 10. mollvfolia. 



crassifolia. 



13. 



14. 



16. 

 ncriifoliu. 



11 



12. 



9. 

 13. 

 14. 



15. 

 16. 



18. 



17. 

 ferruginea. 

 spicata. 

 microcarpa. 



17. 

 lancifolia. 

 fiilripes. 



lil. 

 decora. 



20. 

 nrceolarix. 



