Lentinus sajor-caju (formerly known as Pleurotus sajor-caju) is a species of saprophytic mushroom.
Cultivator-mycologists often incorrectly use the name Pleurotus sajor-caju for some warm weather varieties of Pleurotus pulmonarius, a commonly cultivated species of Oyster Mushroom. The real Pleurotus sajor-caju is a completely separate species of mushroom, which was returned to the genus Lentinus by Pegler in 1975. However, the name Pleurotus sajor-caju has been misapplied so often, even in scientific texts, that confusion about the species name is persistent.[1]
Lentinus sajor-caju (Fr.) Fries. (syn. Pleurotus sajor-caju (Fr.) Sing.) has a distinct veil, a persistent ring on the stipe, and flesh composed of trimitic or dimitic hyphae. P. pulmonarius is monomitic and has a bare stipe.
. Paul Stamets. Growing gourmet and medicinal mushrooms = [Shokuyo oyobi yakuyo kinoko no sabai]. 3rd. 2000. Ten Speed Press. Berkeley, California, USA. 978-1-58008-175-7. 316–320. Chapter 21: Growth Parameters for Gourmet and Medicinal Mushroom Species.