Amanita strobiliformis is a species of mushroom. It is commonly referred to as warted amanita.
Description The cap is across, is rough with warts which sometimes fall away leaving the cap smooth, whitish, and sometimes has some brown. The gills are free and rounded behind. The veil is large and sometimes adhere to the margin of the cap. The stipe (stem) is long, thick, white, bulbous, and sometimes weighs a pound. The spores are elliptical.
Distribution and ecology In Europe, A. strobiliformis grows from the Mediterranean region to the Netherlands and England, and maybe further north.
It is associated mycorrhizal with deciduous trees, preferring scattered forest, or woodland borders, usually on alkaline soil.Amanita strobiliformis (Paulet ex Vittad.) Bertill. - Warted AmanitaAmanita strobiliformis It grows singular fruits and sometimes clusters. The fungus is rare.
Adults of the North American pleasing fungus beetle Tritoma biguttata biguttata have been recorded from a supposed "A.strobiliformis"; this is probably a misidentification of A.ravenelii, and in any case it does not seem to be a regular food source for them.Goodrich, Michael A. & Skelley, Paul E. (1994): Fungal host records for species of Tritoma (Coleoptera: Erotylidae) of America North of Mexico. Entomol. News 105: 289-294. PDF fulltext
Toxicity
The edibility is unknown, but the genus Amanita contains some of the most toxic fungi known. Some amanitas are deadly in only very small doses, while others are relatively harmless and sometimes even considered fit for human consumption, whereby Amanita caesarea is considered a delicacy.
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