I was aware of the case of male apomixis in Cupressus dupreziana, but it
appears to even weirder than I knew. According to this article in
Arnoldia if you fertilise Cupressus sempervirens with C. dupreziana
pollen what you get is seed of C. dupreziana pollen.

http://arnoldia.arboretum.harvard.ed...ticles/636.pdf

But then vertebrates are also weird - see Rana esculenta.
--
Stewart Robert Hinsley