1) Fungus genus 2) Genus fistulina 
Fistulina is a genus of fungi in the Fistulinaceae family. Species in the genus cause a brown rot of both dead and living hardwood trees. ...
Fistulina is a genus of Fungi, allied to Boletus, found on old oak, walnut, ash, beech and horse chestnut trees. It is eaten in Europe grilled and is said to taste like broiled meat.
[n] - fungi having each pore separate though crowded