FW: Glads from Georgia

Yuri Pirogov jukp@aha.ru
Tue, 06 Mar 2007 23:27:47 PST
Hi All,
My garden is near Moscow, Russia in USDA zone 3-4
I grow for years three species of hardy glads:
G. segetum http://irisgarden.net/photo/g_segetum.jpg
G. imbricatus http://irisgarden.net/photo/g_imbricatus.jpg
G. tenius http://irisgarden.net/photo/g_tenius.jpg

Last one was collected in Armenia, not far from Georgia. It almost became a 
weed in my garden with its bulblets forming in abundance every year.

Modern Flora of Armenia indicates 9 species of Gladiolus: G.G. 
dzhavakheticus, szovitsii, italicus, atroviolaceus, caucasicus, 
hajastanicus, kotschianus, menitzkyi, tenius

By the way G. atroviolaceus has 2n=90

Yuri Pirogov
in Moscow

> Boyce, I presume the Rep. of Georgia glads look more like G. imbricatus
> rather than like byzantinus or italicus?
> I seem to vaguely recall having seen somewhere once that some cultivated
> glads are thought to have originated from a Eurasian species X African
> species cross.  I believe the Eurasian glads have 2n=80, maybe?  According
> to Goldblatt & Manning, both G. oppositiflorus salmoneus  and G. 
> saundersii
> have 2n=30.
> I have here, perfectly hardy outdoors in the ground (bar mice!), the
> Eurasian species GG. communis byzantinus, "caucasicus," imbricatus,
> illyricus, and italicus.  The G. "caucasicus" looks like G. imbricatus to
> me, but are hardier here than Janis Ruksans' G. imbricatus.
> The G. imbricatus/caucasicus require chilling to germinate their seeds AND
> the bulbs must be chilled to get them to grow in the spring after their
> winter dormancy.

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