Nicolas Schwab
nschwab.bsky.social
Nicolas Schwab
@nschwab.bsky.social
Mycologist, botanist and photographer from Switzerland

Passionnate about every detail of nature 🌿🍄
It is not a validly published species but a provisional name. That's why it isn't present in Index Fungorum and iNaturalist.
March 26, 2025 at 6:52 PM
Let's finish with a few weirdos! All of them are the unique representative of their section in Europe.
C. (Cort.) spilomeus, C. (Hygr.) renidens, C. (Cort.) caperatus and C. (Cort.) subtortus
January 29, 2025 at 10:45 AM
I haven't found many myxacioids but I still have four collections of them. Cortinarius (Cort.) mucifluoides, C. (Thaxt.) salor, C. (Thaxt.) delibutus, C. (Cort.) trivialis.
January 29, 2025 at 10:42 AM
Here are the two only known species of section Cortinarius. The first one is Cortinarius (Cort.) violaceus and the second is Cortinarius (Cort.) harcynicus. They have a very complicated history between lumping and splitting and experts are still arguing about their taxonomy.
January 29, 2025 at 10:38 AM
I also made two sequenced collections of Cortinarius (Cort.) hirtus at All Things Fungi Festival 2024. It is very reminiscent of section Flexipedes or Hemitrichi, but is placed in sect. Megaspori.
January 29, 2025 at 10:35 AM
Let's continue with telamonioids. I was more interested in other groups this year but I found some nice species. Cortinarius (Cort.) torvus, C. (Cort.) saturninus, C. (Cort.) uraceus, C. (Cort.) gentilis.
January 29, 2025 at 10:32 AM
Cortinarius (Cort.) olivaceofuscus is the only species from section Pauperae in Europe. It grows in the same areas as Cortinarius humicola and I found it many times as well.
January 29, 2025 at 10:30 AM
Next are some dermocyboid species. I didn't prospect conifer areas as much as other years, so I only found a few of them. Cortinarius (Cort.) bataillei, C. (Cort.) mirandus, C. (Cort.) cinnamomeus, C. (Cort.) malicorius.
January 29, 2025 at 10:28 AM
Cortinarius (Cort.) humicola deserves its own post! It was present abundantly in beech forests this year, even though it's a red-listed species in Switzerland.
January 29, 2025 at 10:23 AM
Now starting with leprocyboid species. Cortinarius (Cort.) orellanus, C. (Cort.) rubellus, and C. (Aur.) neocallisteus.
January 29, 2025 at 10:20 AM
Last few random phlegmacioids. C. (Phl.) cumatilis var. robustus, C. (Phl.) foetens, C. (Phl.) percomis, C. (Phle.) vulpinus var. vulpinus.
January 29, 2025 at 10:19 AM
A few more phlegmacioids, this time with more blueish tones. C. (Phl.) largus, C. (Phl.) magicus, C. (Phl.) praestans, C. (Phl.) variecolor.
January 29, 2025 at 10:13 AM
Three calochroid phlegmacioid species. C. (Cal.) piceae, C. (Cal.) platypus and the first find for Switzerland of C. (Cal.) flavoaurantians.
January 29, 2025 at 10:10 AM
More colorful phlegmacioid species! Cortinarius (Cal.) elegantissimus, C. (Cal.) splendens, C. (Cal.) odorifer, C. (Cal.) regis-romae.
January 29, 2025 at 10:08 AM
Antherospora hortensis does not infect other Muscari. But several close cryptic taxa infect other species indeed.
January 28, 2025 at 12:55 PM
Yes, this particular species is only found on one particular muscari. Other Antherospora infect different host, such as other Muscari, Scilla, Barnardia or Eucomis. But many more anthericolous genera are known: Microbotryum or Thecaphora, for example.
January 27, 2025 at 3:00 PM
The last photo shows the brown spores under the microscope. The purple polygonal cells are part of the anthers of the plant. A mesmerizing view!
January 27, 2025 at 2:57 PM
The first photo shows an infected plant. When it happens, all the plant is infected, meaning it's a systemic infection. The second photo depicts the anthers covered by brown spores. You can find this parasite by shaking the flowers, like I did in the third photo.
January 27, 2025 at 2:56 PM
I know three locations in the region where I live but only one of them produced a significant fruiting. I know it's fairly common in the UK but it seems to be more the exception more than the rule in Europe, unfortunately.
January 27, 2025 at 2:47 PM
Currently, only P. calyptriformis sensu stricto has ever been sequenced from Europe. However, I suspect they might be an additional species in the Mediterranean area. Here's a specimen I found in Corfu last year.
January 27, 2025 at 2:45 PM