Zephyranthes grandiflora

Peter Taggart petersirises@gmail.com
Sun, 29 Jan 2012 23:22:57 PST
There are some plant species (eg some Mimulus I believe), which are so
efficient at vegetative increase that there may be only one clone for miles
and they rarely bother to set seed.
Also in horticulture a sterile clone or hybred of a plant species may have
advantages such as not self seeding and thereby being invasive or producing
poorer forms as seedlings, such as in the case of Iphion cultivars as
mentioned by Alberto.
Double flowered forms of species plants may well be freek seedlings where
the sexual parts of the flower have turned petaloid, rendering them
sterile. They can still be pure species material.
Other plants self pollinate such as some Amarylliads? Ficus and species of
Sorbus- effectively producing clonal offspring and being an evolutionary
"dead ends" unless they 'sport' or manage to cross pollinate with something
Peter (UK)

On Mon, Jan 30, 2012 at 5:29 AM, The Silent Seed <santoury@aol.com> wrote:

> This is the first time I've ever heard of an actual species (of anything)
> being sterile beyond artificial damage, such as neutering, or radioactive
> exposure, etc? Is it possible that the flowers simply are not being
> pollinated ? When I do not pollinate the flowers, they do not set seed. Is
> this what you mean?

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