Primula laurentiana??

[Lesley Cox]

And thanks too, for the iris ID. I should have known but could only think of verna which I knew it wasn't. Damn it all, I have setosa canadensis (under various names) in my garden. Well no, it CAME under various names but is grown here as setosa hookeri.

[Kristl Walek]

Primula laurentiana and Iris setosa canadensis often seem to grow together in the wild---I recall first meeting them BOTH in the wild in Quebec, growing on the same rocks---that time in the Gaspe, along the Bay of St. Lawrence---and that was the first time I offered wild seed of both plants.  My own seed-grown progeny of those Quebec Iris were planted in gravel next to one of my large ponds, where they thrived. I love their silky flowers.

And here I meet them both together again in Nova Scotia, on rocks, except this time next to the ocean.

[Great Moravian]

I add two citations concerning Primula farinosa supporting my claim.
Dostál, Nová květena ČSSR : 748 for the whole plant

rub l., stvol, stopky a K bíle pomoučené, ostatně lysá
underside of l., scape, pedicels and K white farinose, otherwise glabrous

Kovanda in the newest Klíč ke květeně České republiky : 280 for leaves

listy na rubu pomoučené, jinak lysé
leaves farinose on underside, otherwise glabrous

[Great Moravian]

I first saw P. stricta long ago in the Yukon (it is my notes as P. incana, per Flora Of The Yukon)

I wonder who decided Primula incana is Primula stricta.

[Kristl Walek]

I first saw P. stricta long ago in the Yukon (it is my notes as P. incana, per Flora Of The Yukon)

I wonder who decided Primula incana is Primula stricta.

let me try to find my Flora of the Yukon (still in moving boxes somewhere)---and see what i can find out.

[ashley]

Yes WJ Cody’s Flora of the Yukon Territory (2000) treats them as being synonymous, here, but the Flora of North America regards them as distinct (see separate entries for P. stricta & P. incana).  

However Cody's map for P. incana suggests a more southern (inland) distribution whereas Flora of North America describes P. stricta as an arctic maritime species.  Hence Kristl's proposal of P. stricta fits better for the plant I showed from the Mackenzie delta near the Beaufort Sea.

[TheOnionMan]

According to the online Flora on North America (FNA), Primula eximia is no longer that name, and is P. pumila.
What a taxonomic rat's nest.

P. pumila (sym. P. eximia)
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250092234

[Great Moravian]

No. Primula pumila is dated 1888 wheras Primula eximia 1897,
but the former is a later homonym and therefore illegitimate.
Check Plant Names Index a use contentendly Primula eximia.

[TheOnionMan]

No.  Merely pointed out that latest taxonomic determination in Flora of North America.
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250092234
If you disagree with their position, that's fine, that's your opinion.

Checked out The Plant List, neither P. eximia nor P. tschuktschorum are listed!  However, using the TPL search function on Primula eximia, (http://www.theplantlist.org/tpl/record/tro-26400483), the search information defers to Tropicos, and comes up with:

Primula eximia Greene is a synonym of Primula tschuktschorum subsp. eximia (Greene) A.E. Porsild
This name is a synonym of Primula tschuktschorum subsp. eximia (Greene) A.E. Porsild.
The record derives from Tropicos which reports it as a synonym (record 26400483) with original publication details: Pittonia 3(17C): 251 251 1897.

Searching TPL on Primula pumila similarly defers to Tropicos:
Primula pumila (Ledeb.) Pax is a synonym of Primula tschuktschorum var. pumila (Ledeb.) Fernald
This name is a synonym of Primula tschuktschorum var. pumila (Ledeb.) Fernald.
The record derives from Tropicos which reports it as a synonym (record 50308492) with original publication details: Bot. Jahrb. Syst. 10(3): 208 208 1888.

[John Richards]

Well! Where have we got to? Several points. P. incana (which was illustrated) has six sets of chromosomes (6x) and is not the same as the high arctic P. stricta (14x). They differ in several ways but P. stricta has smaller flowers. It is a matter of opinion whether you treat P. eximia (also illustrated) as a species or subspecies of P. tschutkchorum. However it has four sets of chromosomes (4x) and is homostyle, whereas P. tschutkchorum is a diploid (2x) and is heterostyle, so I prefer the former solution. It is NEVER the case that P. farinosa lacks farina above the leaves. It may wash off in heavy rain, or disappear on old leaves, but if you look with a good lens on young leaves it is always there. P. frondosa has rounded crenate leaves with a short wide stalk which are different from P. incana, although I agree that they could be mistaken. It is always best to know where your Aleuritia primula comes from! Thank you Kristl for great photos of both P. laurentiana and P. mistassinica in the wild. The former are tiny dwarfed forms, but that often happens in this group. And finally, YES the two plants that started all this off from the AGS Online Show ARE P. frondosa!!!

[Great Moravian]

Thank you hightrees. The explanation by you is sufficiently clear to any intelligent person I suppose.
---
McMark,
I spoke about the useful Plant Names Index at
http://ipni.org
Forget about the confusing The Plant List.

[Great Moravian]

The first sentence of the original description of Primula frondosa by Janka is amusing.
Ludit farinifera vel farina omnino destituta nuda.
Leads us by the nose, farinose, or, farina totally destituted, glabrous.

[mark smyth]

I had the chance to buy a collection of North American Primulas from Aberconwy yesterday but I didnt. I bought Primula laurentiana

[mark smyth]

I would like to make a trough for N American Primulas. What conditions do they want and what mix should they be in?