Germinating Coconuts?

David Starrett dstarret at BIOLOGY.SEMO.EDU
Wed Aug 11 18:41:00 EST 1999

At 08:53 AM 8/11/99 -0500, Monique Reed wrote:
>I'm not sure how the endosperm ends up evenly distributed.  And yes, the
>multi-nucleate endosperm is unusual.  I've never had the opportunity to
>cut through a fully mature coconut, so I don't know if it all solidifies
>or if there is a little slosh left over.  I would guess that the hollow
>space is indeed helpful in helping the seed float, since that's how the
>plants are dispersed.
>A coconut is actually a type of drupe--the husk is the exocarp and
>mesocarp, and the hard brown shell is the endocarp.  (Remember that what
>you see in the supermarket is not the whole fruit.)  There's got to be a
>little embryo in there somewhere, but in all my supermarket-coconut
>opening days, I have never found one.  I will look a little harder in
>this year's Plants and People course.  The embryo might be really,
>really tiny in an unripe nut.

So drupe can be used to refer to a monocot fruit.  I wasn't sure about
that.  Now I am intrigued about the embryo and will keep an eye peeled for it.



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