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  Lasia spinosa seed germination
From: Adam Black <epiphyte1 at earthlink.net> on 2004.08.30 at 18:36:19(12127)
Hi All,

Does anyone have any suggestions for germinating Lasia spinosa seeds?

Also, my Lasia's growth habit is unlike those I have seen at botanical
gardens. All of the others I have seen grow in a very erect upright
manner, while mine sends out reclining stem out of the pot that then
travel along ground level, rooting as it grows away from the pot, yet
still making nice big leaves. It is not in full sun, which is what I
assume is the difference between mine and the ones I have seen in full
to nearly full sun at botanical gardens. Any comments?

Thanks!

Adam

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From: "danny wilson" <mudwasp_ at hotmail.com> on 2004.08.30 at 21:06:26(12129)
the leaves might be looking for sunlight by crawling along teh ground, just as my amorphophallus konjacs lean towards the window
>From: Adam Black
>Reply-To: Discussion of aroids
>To: Discussion of aroids
>Subject: [Aroid-l] Lasia spinosa seed germination
>Date: Mon, 30 Aug 2004 21:36:19 -0400
>
>Hi All,
>
>
>Does anyone have any suggestions for germinating Lasia spinosa
>seeds?
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From: "Alistair Hay" <ajmhay at hotmail.com> on 2004.08.30 at 23:19:18(12130)
I would defer to the expert, Julius, on anything to do with cultivating
members of the Lasieae, but on the matter of the habit of L. spinosa, I can
say that it is very variable: from tightly clumping erect-stemmed forms
through decumbent to stoloniferous ones.

Like the degree of dissection of the leaf blade, it can be partly accounted
for by environment, but only partly: plants with different habit can still
be differentiated when they are grown under identical conditions.
Alistair

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From: "Julius Boos" <ju-bo at msn.com> on 2004.08.30 at 23:31:22(12131)
>From: Adam Black
>Reply-To: Discussion of aroids
>To: Discussion of aroids
>Subject: [Aroid-l] Lasia spinosa seed germination
>Date: Mon, 30 Aug 2004 21:36:19 -0400
>

Hello Adam,
Just place the ripe seeds (cleaned of their fruit covering) in wet sphagnum and stand back! This aquatic bears large seeds, the fruit take an exceptional length of time to ripen, almost or a full year or more. I have always seen them start to grow more or less erect for only 18" or so, then they always have begun to grow in a reclining or recumbrent form, spreading out of the pot along the ground. There are MANY leaf-forms in the plant, the largest (at about 6-8"!!!) is one from Ceylon w/ an entire leaf-blade that has elegant 'drip-tips'. Nice aquatic species of aroid, but with unforgiving spines whose tips always break off in your hands, always wear leather gloves when working w/ this devil!
Hope this helps,
Julius>Hi All,
>
>
>Does anyone have any suggestions for germinating Lasia spinosa
>seeds?

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From: Dan Levin <levin at pixar.com> on 2004.08.30 at 23:46:33(12132)
Hi Adam,

For the record, my Lasia spinosa is currently growing exactly
like yours. As you've described: it's meandering around the
periphery of my pond with elongating, creeping stems- even
though the plant originates from a pot situated in the middle
of the water. I think it wants to break out of my greenhouse and
give those naturalizing Amorpho. konjac's on the other side of
the glass an invasive run for their money-- but I could be wrong.

And I concur: it absolutely has everything to do with light
exposure! My specimen was definitely staying put (and
growing much more erect) prior to having its light gradually
reduced by overhanging Heliconia leaves above, and some
vigorously growing Cyrtosperma merkusii leaves (huge!) all
along one side. Time to break out the ol' machete!

As to germinating the seeds, I've not actually sowed Lasia
myself-- but would think that Julius' recently suggested method
(as pertaining to Cyrtosperma) would be quite suitable.

I attach said Boosian Logic below. The original post was:
[aroid-l] Cyrt seed distribution closed
Date: Tue, 10 Aug 2004


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From: "Mike Bordelon" <Bordelon.Mike at NMNH.SI.EDU> on 2004.08.31 at 05:02:07(12135)
It's for that reason that I grow mine in a cement mixing pan, app. 2'X3', with drainage holes about 2 inches from the top. It's doesn't get full sun and stands straight up with stems to 4 feet tall.
For the seeds, I would keep them moist just slightly covered with soil.

Mike Bordelon

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From: Adam Black <epiphyte1 at earthlink.net> on 2004.09.01 at 21:43:30(12142)
Hi Julius,

You mention that it takes a long time for the fruits to ripen - It was in
early April 2003 when I asked this list how to pollinate my Lasia inflorescences,
and you were the one who replied back with instructions. I had actually long
forgotten about them, but now, seventeen months later they are ripe, and
yes, they do have very large seeds. Thanks for both helping me pollinate
this plant, and for the info on germinating the resulting seeds. And thanks
to everyone else that replied with info as well.

Thanks!

Adam

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From: "Julius Boos" <ju-bo at msn.com> on 2004.09.03 at 00:21:50(12146)
>From: Adam Black
>Reply-To: Discussion of aroids
>To: Discussion of aroids
>Subject: Re: [Aroid-l] Lasia spinosa seed germination
>Date: Thu, 02 Sep 2004 00:43:30 -0400
>

Dear Adam,
Thanks for this information, I KNEW that the fruit took a long time to mature, but had not kept dates---17 months is a LONG time! I am pleased that the information that I managed to provide enabled you to pollinate this plant and enjoy the experience of producing your own seeds, good luck!
Good Growing,
Julius

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