A. tortuosum self-fertilizing (?)

[Gusman Guy]

>Hi all
>To continue with the self fertile / hybrid issue. If my tortuosum has
>produced viable seed and this appears next year with a trifoliate seed leaf,
>will the seed be viable if stored (what is the best conditions) for Seedex
>2007? It is a particularly nice specimen, snakeskin pattern cataphyll and
>stem + plant is over one metre tall.
>With the exception of 2 natural hybrids, the Book, triphyllum and
>dracontium, tortuosum and consanguineum, all other natural hybrids mentioned
>are Japanese and all from the same section, pedatisecta. Are plants from the
>same section more likely to produce viable seed and plants, than possible
>hybrids of plants from different sections?

One cannot provide an answer to this question, but it is reasonable to assume that plants genetically close to each other, such as Pedatisecta, produce hybrids more easily. If most hybrids mentioned are Japanese, it is because most species, one looked at in the wild, were studied by Japanese botanists, in Japan. Such a systematic study was never made in India, Thailand...

>I also have a costatum setting seed, obviously a female but male is ????.
>Martin
>----- Original Message -----
>From: "Gusman Guy" <ggusman at ULB.AC.BE>
>To: <ARISAEMA-L at NIC.SURFNET.NL>
>Sent: Thursday, July 28, 2005 8:38 AM
>Subject: Re: A. tortuosum self-fertilizing (?)
>
>
>> >Jim McClements pointed out that A. tortuosum is either male or bisexual,
>> >never just female (Gusman p. 391). Even so, it might be the case that the
>> >male and female flowers mature at different times (Gusman p. 44) and
>> >self-fertilization is unlikely. Can somebody on the list with experience
>> >with A. tortuosum give me some idea of what to expect?
>> >
>> >(Of course, I'll try to harvest the seeds and see if they germinate.)
>> >
>> >Mary Lamb
>> >
>> >
>>
>> You're right, seeds produced by one plant only could well be sterile. Keep
>AEG posted and tell us if they germinate. But how to be sure that no cross
>has been made between the bisexual tortuosum and another arisaema in the
>garden?
>> Guy
>>
>
>

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