1. An extremely fine, fragile veil with a cobwebby cellular mass is called a cortina. A cortina is one of the features of the genus Cortinarius.
2. A cortina is a form of partial veil consisting of a cobweb-like protective covering over the immature spore bearing surfaces. Cortinas are variable; they can be thin and arachnoid, consisting of a few spider-web-like threads — or they can be thicker and more dense (sometimes so thick and dense that the line between cortina and ring can be blurred). Sometimes cortinas can be very difficult to see; make sure you are examining very young specimens, and use a hand lens! Cortinas typically stretch open and fall apart as the mushroom matures, disappearing entirely or leaving a ring zone on the stem.
Created: 2019-07-14 19:16:59 CDT (-0500)
Last modified: 2019-07-14 19:16:59 CDT (-0500)