G. rizehensis or lagodechianus ?

[mark smyth]

New thread created for this discussion
Pic of Mark's ?rizehensis mentioned by Diam is  reposted by maggi in post no. 12 
below

.........and your rizehensis is more likely G. lagodechianus  by ovary form too - but it would be better to see the leaves more closely - I'm not sure with no leaves.

Thanks for your input Dimitri. This is what I used to have as lagodechianus and in the third photo a plant I saw in England which after much discussion experts labelled as lagodechianus

[Oakwood]

Two snowdrops from today. Not the best because of another dull day
elwesii Majorie Brown - an ordinary monstictus but with good leaves
rizehensis

very good, Mark! but could you post here the leaves of you "rizehensis" from your post above, please, just I was calm  cause my passion is to identify the snowdrops and Ornithogalums!  in the future I'm planning to collect and identify Genus Gagea from Ukraine.

[mark smyth]

Dimitri, are the two snowdrops above lagodechianus? I just went outside and opened one of my 'rizehensis' flowers and they have short inner lines also. This is something I have never looked at before. All of mine produce twin scapes. Is this normal?

This is my other group of rizehensis

[Oakwood]

This is my other group of rizehensis

I agree with you, Mark - it's a typical rizehensis with a faint median stripe adaxially on a leaf that lagodechianus hasn't.
Two-scaped snowdrop-plants are very often especially in cultute - it's not a strong genetic marker.
And the apical inner tepal notch might be very variable both in lagodechianus and rizehensis.

by thin inner tepal notch on both your lagodechianus flwr pics I could say it's lagodechianus, BUT! I must see the leaves of them closely ....

[mark smyth]

I just took photos of all my plants. What I didnt notice before is the plants in my first post have well developed leaves. The plants that I will show soon has leaves just emerging

Maybe Maggi will create a new thread for rizehensis v lagodechianus

[Oakwood]

Mark, the matter is these two species are easy separable by leaf color, presence or absence of leaf median stripe adaxially and apical notch size! 

[Oakwood]

about inner stripes and outer marks of inner tepal - there is an excellent and fully useful table in Davis book, p. 36-37.

[mark smyth]

Thanks again.

Last photos of these plants for the time being taken a few minutes ago. When the sun shines again I'll take detailed photos of the flowers

rizehensis in a trough in the back garden x2
rizehensis in a raised bed in the front garden x2 These are the same plants as in post 413 ...opening post to thread ....  above

[Oakwood]

Thanks again.

Last photos of these plants for the time being taken a few minutes ago. When the sun shines again I'll take detailed photos of the flowers

rizehensis in a trough in the back garden x2

the first two pics - rizehensis by leaves with a weak degree of a glaucousness - faint median stripe is clearly visible!

rizehensis in a raised bed in the front garden x2

for the last two pics - let the foliage to grow out!  

[johnw]

re: rizehensis

"a faint median stripe" on the leaves here as per Davis.  A flower was posted earlier. The original source was Morley in 2000.

johnw

[Oakwood]

re: rizehensis

"a faint median stripe" on the leaves here as per Davis.  A flower was posted earlier. The original source was Morley in 2000.

johnw

  just open Davis key on page 81 (1999) and read the sentence "5. Leaves usually matt green, often with a faint median stripe.....
........16. rizehensis"

[Maggi Young]

This is the photo that Mark posted which Dima replied to  earlier.... reposted here in new topic....

[Oakwood]

Thanks Maggi!!!! for a new actual topic!!
Résumé:
G. lagodechianus - hexaploid, with a bright green leaves with no prominent median stripe.

G. rizehensis - Turkish plants are diploids with more accurate appearence (habitus), S. Russian/Georgian plants are triploids and more robust; the leaves with a faint median stripe, slightly glaucous, matt.

[Oakwood]

another mysterious species from lagodechianus complex - it is hexaploid G. cabardensis described in 1951 by Yury Koss from Kabardino-Balkaria and it was assigned to G. lagodechianus synonyms by Artjushenko (1965). I'm growing a pure cabardensis from locus classicus send to me from Naltchik BG. Here I post a last year spring pic of them cause just now we have a strong winter with frosts and snow up to 30-50 cm in some places 
Superficially cabardensis looks more robust and huge with broader not erect leaves then Georgian lagodechianus.