124 



ACERACEAE. 



3. Buds with two scales : leaves many-lobed. 4. 

 Buds with several exposed scales. 13. 



4. Pubescent for a time : lobes typically short. 5. 

 Glabrous : lobes separated fully half-way to base. 7. 



5. Lobes short 6. 



Lobes separated nearly to base. A. japonicum Parsonii. 



6. Leaves green. 

 Leaves yellow. 



7. Leaves not variegated. 

 Leaves variegated, n. 



8. Leaves green. 10. 

 Leaves purple. 

 Leaves red. 9. 



9. Lobes broad. 

 Lobes dissected. 



10. Lobes dissected. 

 Lobes broad. 



11. Lobes broad. 12. 

 Lobes dissected : mottled. 



12. Leaves mottled. 

 Leaves rosy-margined. 



13. Leaf-scars glandular at top : leaves compound. 



(Box-elder). 14. 

 Leaf-scars not glandular : leaves simple. 19. 



14. Twigs green. 15. 

 Twigs deep purple. 



15. Leaves not variegated. 16. 

 Leaves variegated. 17. 



16. Leaves green. 

 Leaves yellow. 



17. Leaves mottled. 

 Variegation marginal. 18. 



18. Margin white. A. Negundo argenteo-variegatum. 

 Margin yellow. A. Negundo aureo-marginatum. 



19. Buds ovoid or short-conical. 20. 



Buds conical, pointed, gray-pubescent. (Sugar ma- 

 ples). 50. 



A. japonicum. 

 A. japonicum aureum. 



A. palmatum atropurpureum. 



A. palmatum sanguineum. 



A. palmatum ornatum. 



A. palmatum dissectum. 



A. palmatum. 



A. palmatum Frederici-Guilelmi. 



A. palmatum bicolor. 



A. palmatum roseo-marginatum. 



A. Negundo violaceum. 



A. Negundo. 



A. Negundo auratum. 



A. Negundo aureo-maculatum. 



