No surprise there: GRIN is, at least for all non-North American stuff, just a copy of Kew's lists. Regarding the 1998 World Checklist: no need to...
Or with Q. robur, just being a cultivar with unusual (for a European white oak) leaf-shedding behaviour. But indeed, that would indeed be an easy...
Yes. The according proposal #126 (they are typically published in Taxon) to add a new exception-from-the-rule paragraph in Article 61 included all...
POWO is pretty well curated generally and a good basis for iNaturlist or alike but (lacking staff) they depend on the global systematic botanists'...
For that they would have needed to change the (holy) Code, which includes an article (60) that explicitly says that only grammatical and...
Really fascinating, the unusually chilly habitat may trigger some aberrant behaviour. How well developed is the cork layer of your trees?...
That'd be the prototypical leaf shedding behaviour that can be observed in species of the cork oak lineage (subgenus Cerris section Cerris). But...
Naturally. It's from our 2014 paper, original PDF can be found here. For a full assessment across the genus and according graph with a relatively...
Just a little genetic background re hybrids and non-typical forms: In its native range, A. truncatum forms a hybrid zone with the local variants...
That makes sense. Climate zones are always too coarse because they are generalisations. The oceanic-continental aspect is better captured by...
That would make sense. The list is (by the way) also a collection of potentially primitive leaf morphologies of maples through time. And A....
Getting proper distribution data was always hard for us, being dependent on free-to-access data and lacking any access to professional GIS...
I concur, it looks very much like our very common Spitzahorn, as we call the Norway Maple in German, because of it's very pointed tips. I may be...
It may well be but since there is no type locality, and it's a cryptic species, we cannot establish it's the same thing. But it may be worth...
Negative results are usually not deemed to be worth publishing. I only know of those who tried and failed to find anything unusual about it...