PLATE 19 



Juglans calif ornica Watson 



Fig. 7. — Specimen of polyembryony from cluster No. 208 on J. call- 

 f ornica tree No. 16 in Garden Grove, Calif. X i/^. 



Juglans californica var. quercina Babeock 



Fig. 8. — Specimen of polyembryony from a cluster of abnormal nuts 

 on J. californica tree No. 16 in Garden Grove, Calif. X V2- 



[70] 



