Hippeastrum question
David Pilling (Sun, 29 Apr 2018 08:12:09 PDT)

Hi,

Wikpedia says

"Some species, such as the Uruguayan Hippeastrum petiolatum, are sterile
and unable to produce seeds. H. petiolatum is a sterile triploid that
reproduces asexually, producing many bulbils around the mother bulb.
These are light, and easily carried on the surface of water ensuring
distribution of the species during the rainy season. Other species such
as Hippeastrum reticulatum are self-pollinating, reproducing by
distributing seed. Although this does not guarantee genetic diversity in
natural populations, it is widely used by colonising species. These two
examples are not however typical of the genus, which commonly reproduces
through allogamy. One mechanism that limits self-pollination is that of
self-incompatibility by which seeds are only produced by pollination
from other plants.[67][68] Furthermore, the plant generally releases its
pollen about two days before its stigma is receptive, making
cross-pollination more likely.[67] Pollinators include Humming birds in
subtropical areas, and moths.[30]"

--
David Pilling
http://www.davidpilling.com/
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