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hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: Adam Fikso <irisman at AMERITECH.NET>
Subject: Re: Arisaema dilatatum germination quandry
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Hello all, and Guy in particular.   This particular batch of seed that
Bonaventure is referring to was shared between us. It had come from the s=ame
seedhead on the same plant grown in Europe.    He tried to grow his on pa=per
towels per  Deno.  Mine were refrigerated for two weeks at 40-45 F., befo=re
being panted in a  bark mixture for seedlings. I plan to wait another 2
weeks before digging them up to look at them.  Having consulted THE BOOK
first, I have not expected to see anything above the surface--but the
question sits there like an elephant in the room--How was it learned that
these things do not show above ground the first year.  Was it an impatien=t
botanist who discovered it by accident, like Fleming learning about
penicillin?  Are there  plants other than arisaemas that do this
routinely--making a protocorm is only hypogeal the first year?

Is this known to be systematically related in any way to prior evolutiona=ry
pressures, even theoretically?, e.g., as-- what pressures might have
resulted in this mode of development?  Adam in Chicago suburb, USDA Zone =5a.


From: "Gusman Guy" <ggusman at ULB.AC.BE>
To: <ARISAEMA-L at NIC.SURFNET.NL>
Sent: Wednesday, January 26, 2005 2:37 AM
Subject: Re: Arisaema dilatatum germination quandry


> Hello,
> You're right, these seeds were most probably not viable.
> On the other hand, Arisaema dilatatum germinates without producing a
> blade, an eophyll. One must wait till the second growing season to see =the
> usual green leaf. With Deno's method, it is easy to watch the