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Name: Boletus edulis Bull.

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Nomenclature:
Rank: Species
Status: Accepted
Name: Boletus edulis
Author: Bull.
Citation: Herb. Fr. 2: tab. 60 (1782) [1781-82]
Deprecated Synonym(s): Boletus edulis var. arcticus (Vassilkov) Hlaváček, Boletus edulis var. betulicola Vassilkov

Classification: Edit

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Boletaceae
Genus: Boletus

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Brief Description: See More | Edit

Boletus edulis (28)
Macroscopic characteristics Pileus can be nearly any shade of brown, starts convex and becomes nearly flat with maturity, and has a tackiness when it becomes wet. The cap can be between 8-30 cm. The pore surface is white when young and becomes olive-yellow with age. It does not bruise except in maturity when it may bruise olive. The pores are small and circular (2-3 per mm.) The stem is thick, usually club-shaped and can be bulbous but rarely equal. It can be 5-26 cm long, 2-8 cm thick with fine reticulations on the upper portion. The reticulations are white with pale brown. Annulus and partial veil are not present. The flesh is white and does not blue when bruised unlike some other boletes. KOH produces an orange or red reaction on the cap but has no reaction on the flesh. The spore print is olive brown.

Microscopic characteristics The spores are 13-19 × 4-7 µm, smooth elleptic and a pale yellow brown color.

The fruiting bodies can be solitary, scattered or in groups on the ground around conifers. They are found between June and October.Some common names are porcini, cep, and King Bolete.


Descriptions: Create

Version: 5
Previous Version: 4

First person to use this name on MO: Nathan Wilson
Editors: walt sturgeon, Johannes Harnisch

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Created: 2007-01-10 00:03:57 EST (-0500) by Nathan Wilson (nathan)
Last modified: 2013-03-21 16:23:20 EDT (-0400) by walt sturgeon (Mycowalt)
Viewed: 3785 times, last viewed: 2013-05-19 06:42:55 EDT (-0400)
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