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[Clansgian AT wmconnect.com]

> >Butternut doesn't cross with Acorn?
> Will either cross with cukes?
> I can never remember.

It doesn't.  Acorn squash is 'cucurbita pepo' and butternut is 'cucurbita 
mixta' and they can't cross.

Hubbard squashes are 'cucurbita maxima' and won't cross with either.  

Now here's the nicely confusing part.  Most summer squashes including 
zucchini are C. Pepo and will cross with acorn squashes.  What passes for 
pumpkins 
are sometimes C. Pepo, sometimes C. Mixta, and sometimes C. Maxima and will 
cross within their species.

Most cushaws are C. Argyrosperma which means "silver seed" but some are C. 
Moschata.


James