38 ^ i-iii.u Mantai. 



a. Aesculus. ( |(i ). 

 17. I'lowtis irregular in the miiiiber of Ihc several Horal 

 sets; leaves pinnate or bipinnate, alternate; i«vu- 

 iary .S-lncular. Saimxdacfak. 



a. Koelreuteria. (:^!>). 

 is. Stanuii> ni'ither in>t as nian\- nor twice as nian\- as 



the petals. 19. 

 IN.- Stamens jnst as man}- or twice as nian_\- as the 



petals. 20. 

 II'. Stamens distinct and fewer than the 4 petals; trees 



or shrubs with opposite pinnate or simple leaves. 



Oleaceae. 



a. Flowers diecions, from catkin-like scaly buds. 



Forestiera. (7")). 



a. Flowers bisporan^'iate. petals linear. 



Chionanthus. ( 7.^ ) . 



1J». Stamens more numerous than the petals; leaves pal- 

 mately veined, opposite; fruit 2-winged. Some 



ACERACEAE. 



a. Acer. (41). 



20. Ovules 1 or 2 in each cavity. 21. 



2". Ovules several or man}- in each cavity; stipules be- 

 tween the opposite and pinnately compound leaves, 

 caducous; shrubs or small trees. Staphvi^eaceak. 



a. Staphylea. CiT). 

 2i. Lea\e> palmately veined, or coni])ound. 22. 



21. Leaves pinnately veined, simple, not punctuate. 2:!. 



22. Leaves pinnatcl}^ compound, alternate; climbin.u 



herbaceous vines with fruit an inflated 3-lobed 

 capsule; or trees with a globose or lobed berry. 

 Sapindaceae. 



a Sapindus. (38). 

 22. Leaves palmately veined or pinnatel}' coiiii)ound; trees 

 or shrub.s with ojjposite leaves and n<. stij)nles. 

 A( kkackae. 



