The Embryology of Aucuba Japonica 



by 

 Dr. Bj. PALM und Dr. A. A. L. RUTGERS. 



In 1878 Eichler made the suggestion that Aucuba 

 japonica might develop fruits apogamously, supporting his 

 opinion on the fact, that he had found well developed 

 embryos though maie plants were entirely absent. Nothing 

 having in the meantime been published for or against the 

 the theory of Eichler, Winkler (1908) in his work 

 over parthenogenesis in plants ranged Aucuba amongst 

 the doubtful cases. 



Winkler's article caused the second of us writers, 

 when yet being assistant at the botanical laboratory in 

 Utrecht, to take up a cytogical and embryological study 

 of Aucuba. But, leaving Holland for India, the till then 

 obtained results were not published, though the main 

 points of the research were already settled. His meeting 

 in the same laboratory in Buitenzorg with the fîrst named 

 of the authors caused them to work out together the 

 foUowing account. 



The question of apogamy in Aucuba was soon settled. 



AU facts found join to prove this not to be the case. 

 Already the expérience of the growers tend to show that. 



In the platework "Flora" '— by the hortulanus Witte 



Recueil des trav. bot. Néerl. Vol. XIV. 1917. 9 



