Can anyone provide me some pictures or diagram to show the region called "cortex" in Hymenochaete species and/or some description about the region and how to identify if a species of Hymenochaete has cortex or not?
Hello Rakhe Tepin , I provide figure 7c from the bilingual book of Eugene Yurchenko on corticioid fungi of Belarus https://rep.polessu.by/handle/123456789/21094. Check the layer marked as 'co'. It is a layer between the regular trama and hairs. If present, it is recognised with a naked eye or via stereomicroscope as something denser and darker colored that the trama.
Yurchenko E (2020) Corticioid fungi of Belarus : An identification book. Kolorgrad, Minsk, 512 pp.