Lentinellus P. Karst.
Bidr. Känn. Finl. Nat. Folk 32: xviii, 246. 1879.

Principle characteristics of the genus Lentinellus:

• Stipe eccentric, lateral, or absent
• Gills decurrent with a serrate margin
• Spore print white
• Spores amyloid and finely warted to spiny

Keys and descriptions of the genus Lentinellus:

• Trial field key to species of Lentinellus and Neolentinus in the Pacific Northwest
• Petersen, Ronald H. & Hughes, Karen W. (2004). A preliminary monograph of Lentinellus (Russulales). J. Cramer: Berlin, Germany. 270p.

Lentinellus species known to occur in California:

1. Lentinellus castoreus (Fr.) Kühner & Mair
2. Lentinellus montanus O.K. Mill.
3. Lentinellus occidentalis R.H. Petersen
4. Lentinellus subargillaceus (Kauffman) R.H. Petersen
5. Lentinellus ursinus
1. Lentinellus ursinus (Fr.) Kühner
2. Lentinellus ursinus f. robustus (P. Karst.) R.H. Petersen

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