A new comprehensive generic arrangement of the ‘Iris sensu latissimo’,clade

Sean Zera zera@umich.edu
Thu, 12 Nov 2015 07:42:24 PST
> Do all the different, now, genera hybridize with each other?

No, which just goes to show that their splitting is probably justified.
×Pardancanda is the only intergeneric name in use as far as I know (hybrids
between Belamcanda and Pardanthopsis), and (I think) the only one that
produces fertile offspring.

The names I made up were other examples I was familiar with of
now-intergeneric hybrids. Iris tectorum has been crossed with tall beardeds
(i.e. 'Paltec'); these would now be Tectiris × Iris. Iris virginica has
been crossed with series Hexagonae, which would now be Limniris × Phaeiris.
Iris lactea has been crossed with siberians, sino-siberians and pacific
coast natives, which would all be Eremiris × Limniris. I can't believe I
forgot my favorite: ruthenica × sino-siberians, which would be Joniris ×
Limniris (×Limnjoniris? ×Jonlimniris? That's a weird one.) There are
supposedly a few more: lactea × spurias would be Eremiris × Chamaeiris
(Would that be ×Chamaeeremiris? ×Chamemiris? ×Eremamaeiris!). Iris graminea
× sibirica, the only one apparently reported from the wild, would be
Chamaeiris × Limniris.

They're proposing 25 genera, so that's not really very many intergeneric
crosses known, but then again most have probably not been tried. There are
of course plenty of other interseries (now intersectional) crosses that
fall entirely within these authors' genus Iris or genus Limniris.

Sean Z
pbs mailing list

More information about the pbs mailing list