There are a number of spring Cortinarius that are similar and are mainly differentiated by subtle fatures in spore size, and extent and color of UV reaction. After recurrent confusion, I put together these notes to help you with ID. This is not a complete note. I will continue to add to it and welcome... Continue Reading →
To support my talks to introduce the new Cortinariaceae to mushroom clubs I created a Mind Map of the new genera proposed by Liimatainen and others in their 2022 paper ((Liimatainen et al. 2022) . I am sharing it here to help you understand the proposed placement of sections and species across genera, and recognize... Continue Reading →
Phlegmacium melleum
Phlegmacium melleum Bojantchev, S.D. Adams & Ammirati Etymology (Latin): melleus meaning honey colored. Description Pileus 40–80 mm diam., hemispherical to convex when young, plano-convex to planoconcave in age margin involute, pinkish buff initially, developing a pink to reddish orange disk, pale yellow at maturity, smooth, glutinous when wet. Lamellae crowded, faintly lilac or beige at... Continue Reading →
Cortinarius corpulentus
Cortinarius corpulentus is a larger member of section Delibuti, recognizable by the distinctively viscid cap and stipe and pearly blue, lilac and yellow-brown cap colors.
Cortinarius aff veneto-occidentalis
An olivaceous-yellow to brown Leprocybe in section Veneti. It is less common than Cortinarius clandestinus, and occurs exclusively in fall. It has more olive-brown tones than C. veneto-occidentalist sensu strictu, which is known only from boreal forests.
Cortinarius clandestinus
Consider Cortinarius clandestinus when you find a Leprocybe with a black-scaley cap and cream to greenish-yellow tones. It one of few Leprocybe that fruit in Spring, making Spring ID easier. However, C.clandestinus may also fruit in fall so it's not that easy!
Cortinarius olsoniae
Cortinarius olsoniae is in Subgenus Telamonia Section Bicolores. This species was named for Joann Olson, a Cortinarius enthusiast from Humboldt County, California, who first collected this species. It was given the provisional name of Cortinarius 'winter blues' in Mushrooms of the Redwood Coast (2016)
Calonarius aglaeus
Calonarius aglaeus is in subgenus Fulvi, section Splendentes (Liimatainen et al. 2022). The yellow-brown cap colors and bright gills and stipe are key featu
Calonarius flavipavonius
Calonarius flavipavonius S.D. Adams, Bojantchev, N. Siegel, Liimat. & Niskanen (2023) Reference: Index Fungorum 535 Description Pileus 30–150 (–200) mm broad, convex to broadly convex, margin inrolled when young, remaining persistently down-curved through development, plane to uplifted and often undulating in age; surface viscid, glabrous; colors variable, rosy brown to rusty red-brown over disc to... Continue Reading →
Cortinarius anomalodelicatus
Cortinarius anomalodelicatus is a relatively small and slender anomali that is primarily known from the Western USA, Rockies and Alaska.
North American Cortinarius Collections 