Another Mexican Sedum which has survived outdoors for the last 2 winters for me is Sedum kimnachii, even in Wales where the last 2 winters have been very et as well as cold.

Get yourself a DNA sequencing machine and some supplies ?

More seriously, amateur lichenologists have for years had to deal with identifying species which can only be readily separated by chemical testing.

On the contrary Mat, I hope they will include many more taxa which are morphologically the same, but are genetically different....

I saved some seed from my Hildewintera hybrids last year, and will be sowing them in March. I look forward to seeing the results...

Cidermanrolls wrote: ↑Thu Feb 01, 2024 8:18 am Some of mine, three weeks after sowing. The platyacantha have come up really quickly. Note the three lobed aoracanthus.
These have had no pretreatment at all. I’ve got a few other pots with no germination in.

They seem to develop quickly!

What are you growing them in Rob? It looks like fruit and nut mix! Well done, anyway...

Interesting! Thanks,

I've put some of my plants into pumice too, and they seem to mainly be doing OK. A word of warning though - if you put tiny seedlings straight into pumice, they will stay small for much longer than in regular compost. The danger of overwatering increases as plants get bigger and older, so I recommen...

Cracking plant!

Please see the Society Discussion area of the Forum for details,
https://forum.bcss.org.uk/viewtopic.php?t=175057
to keep this area of the Forum on topic of discussing plants.

Thanks.

Ralph