300 



SUMACH 



and winged samara twisted at the top ; with one median 

 seed. 



Fig. 117. Ailanthus glandulosa, Tree of Heaven. A, inflorescence ; B, 

 a cf flower; C, a ? flower; Z), vertical section of ovary, disc and base of 

 stamens ; E, fruit with three ripe carpels, one in section through the seed, 

 p. 299 (E and P). 



ft Ovary of 3 carpels, syncarpous, one-chamber- 

 ed ; styles 3 ; stamens 5. 



Rhus typhina, L. Sumach. Small tree somewhat 

 allied to the Maples and Horse-chestnut, with thick red- 

 hairy shoots, and large pinnate leaves : containing a sharp 

 latex. 



