About Amanita parcivolvata (Peck) E.-J.Gilbert
The cap (pileus) of Amanita parcivolvata is bright red, with a diameter between 3 and 12 centimetres (1 to 4+1⁄2 inches), and is covered in pale yellow to white warts. These warts can be washed away by rain; when this happens, and if all parts of the mushroom except the cap are covered in detritus, the fungus can look somewhat similar to members of Amanita section Caesareae from a distance. The gills (lamellae) are white to pale yellow, closely spaced, not attached to the stipe, and sometimes have a serrated margin. The stipe measures 3 to 12 cm (1 to 4+1⁄2 in) in length and around 1.5 cm (1⁄2 in) in width, with pale yellow to white powdery remnants of the volva along its entire length. Compared to other Amanita species, the volva is quite underdeveloped, if it can even be classified as a true volva. According to researcher Rod Tulloss, the spores of A. parcivolvata measure (8.4–) 9.1–11.5 (–12.6) by (5.6–) 6.3–7.9 (–8.0) micrometres, are inamyloid, and the basidia rarely have clamps at their bases. When KOH is applied, the red cap color quickly fades to orange, then to yellow. A. parcivolvata is occasional to common in the Southeastern United States. It grows primarily in oak (Quercus) forests, though it has also been found in forests that are a mix of conifers and oaks.
