I would like to know if anybody knows where to find these species : *
Aspidistra sp (Convallariaceae)
You can probably find it at any large houseplant company if you spell it
correctly.

Cybdelis schreef
According my sources (Rudall & Campbell, Flora (1999) 194, 201-214), this
is the correct spelling. I do not care the species level.
Houseplant usually don't propose such species. They only sell common
commercial ones.

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I would say Iris is right; it is Aspidistra not Aspidistria
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Iris reticulata and Iris danfordiae are commonly sold by bulb companies.

Do you have a mail adress from this company ? Do they have a web page ? Do
they send outside USA and can they take care of phytosanitary certificates ?

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Using a search engine sounds like a good idea. Lots of suppliers of plants
on the internet
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You will probably have to look harder for the others.
Iris,

That's why I am asking on this newsgroup. It would be possible for
Asparagales-specialized botanical gardens or private collectors.
Cordially,

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Then maybe you should try there?
PvR