LOTSY, CUCURBITA-STRIJDVRAGEN. 21 
obtainable, but this is in view of the matroklinal inheritance in 
both of the reciprocal crosses highly improbable. 
7. None of the forms of Cucurbita, cultivated bij the author, 
was able to form seeds without having been fertilised. Neither 
apogamy nor parthenogenesis has been met with. The cases of 
parthenogenesis in Cucurbita described bij the HAGEDOORNS are 
most probably cases of fertilisation by insects due to insufficient 
isolation. 
8. Some of the forms investigated are parthenocarpous viz. can 
form fruits without having been fertilised, such fruits never contain 
any seeds with embryo’s. 
Bennebroek Nov. 26. ‘19. 
(Ingezonden 28 November 1919). 
