Boletus Fries
Syst. Mycol. 1: 385. 1821.

Principle characteristics of the genus Boletus:

• Hymenophore pored
• Spore print typically olive-brown

Keys and descriptions of the genus Boletus:

• Harry D. Thiers: Boletes of California
• Harry D. Thiers: Field Key to the Boletes of California (PDF)
• MushroomExpert.com: The Genus Boletus
• Thiers, H.D. (1975). California Mushrooms--A Field Guide to the Boletes. Hafner Press: New York, NY.
• Bessette, A.E., Roody, W.C. & Bessette, A.R. (2000). North American Boletes: A Color Guide to the Fleshy Pored Mushrooms. Syracuse University Press: Syracuse, NY.
• Both, E.E. (1993). The Boletes of North America: A Compendium. Buffalo Museum of Science: Buffalo, NY.
• Snell, W.H. & Dick, E.A. (1970). The Boleti of Northeastern North America. J. Cramer: Lehre.

Boletus s.l. species known to occur in California:

1. Boletus abieticola
2. Boletus amygdalinus
3. Boletus appendiculatus
4. Boletus barrowsii
5. Boletus frustosus
6. Boletus chrysenteron
7. Boletus citriniporus
8. Boletus coccyginus
9. Boletus dryophilus
10. Boletus eastwoodiae
11. Boletus edulis
12. Boletus fibrillosus
13. Boletus flaviporus
14. Boletus fragans
15. Boletus haemitinus
16. Boletus mendocinensis
17. Boletus orovillus
18. Boletus pulcherrimus
19. Boletus pulverulentus
20. Boletus regineus
21. Boletus regius
22. Boletus rex-veris
23. Boletus rubripes
24. Boletus smithii
25. Boletus spadiceus
1. var. furcatus
2. var. rufobrunneus
3. var. spadiceus
26. Boletus subtomentosus
27. Boletus tomentipes
28. Boletus truncatus
29. Boletus zelleri

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