Allisina

Allisina is a genus of fungi in the family Tricholomataceae. It was described by mycologist Rolf Singer in 1986. The genus is characterized by its small, thin, and delicate mushrooms with a white to pale yellow spore print. Allisina species are typically found in temperate and boreal forests, often growing on the ground in leaf litter or on decaying wood. They are known for their small size, often measuring less than 2 cm in diameter, and their thin, fragile caps.

The genus includes several species, with Allisina confluens being one of the most well-known. This species is recognized for its distinctive, almost confluent gills that run down the stem. Other species in the genus may have slightly different characteristics, but they all share the common features of small size, thin caps, and a white spore print.

Allisina fungi are not typically consumed due to their small size and delicate nature. However, they are of interest to mycologists for their unique morphological features and ecological roles in forest ecosystems. The genus is a part of the broader study of fungi, which includes thousands of species that play crucial roles in decomposition, nutrient cycling, and ecosystem health.