Leccinum holopus
| Leccinum holopus | |
|---|---|
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| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Boletales |
| Family: | Boletaceae |
| Genus: | Leccinum |
| Species: | L. holopus |
| Binomial name | |
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Leccinum holopus (Rostk.) Watling (1960) |
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| Synonyms | |
| Leccinum holopus | |
|---|---|
| Mycological characteristics | |
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pores on hymenium |
 
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cap is convex or depressed |
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stipe is bare |
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spore print is brown |
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ecology is mycorrhizal |
cap is convex
Leccinum holopus, commonly known as the white birch bolete, white bog bolete, or ghost bolete, is a species of bolete fungus in the family Boletaceae found in northern Asia, Europe, and northeastern North America. It associates with birch trees and is typically found in boggy or swampy areas, often growing among sphagnum moss.
Fruitbodies (mushrooms) of L. holopus have convex caps measuring up to 10 cm (4 in) in diameter. Often pure white—especially in young fruitbodies—the caps sometimes become flushed with buff or brownish tints. The whitish surface of the stipe is covered with small, stiff, projecting scales (scabers) that become tan or darker in age. Some varieties of Leccinum holopus have been described that vary in cap color or staining reaction, but DNA evidence suggests that most are the same taxon. Although the fruitbodies are edible, opinions vary as to their culinary desirability.
Initially named as a species of Boletus by German mycologist Friedrich Rostkovius in 1844, the fungus was later transferred to Leccinum by Roy Watling in 1960.Synonyms resulting from transfer to different genera include: Krombholzia holopoda and K. holopus (both published by Albert Pilát in 1951);Krombholziella holopus (Josef Šutara, 1989);Trachypus holopus (Paul Konrad and André Maublanc, 1952), and Trachypus scaber f. holopus (Henri Romagnesi, 1939). Other synonyms, according to Index Fungorum, include Leccinum olivaceosum, described from France in 1994, and Leccinum aerugineum (1991).Leccinum holopus is classified in section Scabra of genus Leccinum, a grouping that includes Northern Hemisphere species associating exclusively with birch.
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