Plectania nannfeldtii

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Plectania nannfeldtii
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Pezizomycetes
Order: Pezizales
Family: Sarcosomataceae
Genus: Plectania
Species:
P. nannfeldtii
Binomial name
Plectania nannfeldtii
Korf
(1957)
Synonyms[1]
  • Paxina nigrella Seaver (1928)
  • Macropodia nigrella (Seaver) Teng (1963)
  • Helvella nigrella (Seaver) F.L.Tai (1979)
  • Macroscyphus nigrellus (Seaver) Z.S.Bi (1990)
Plectania nannfeldtii
saprotrophic
Edibility is unknown

Plectania nannfeldtii, commonly known as Nannfeldt's Plectania, the black felt cup, or the black snowbank cup fungus, is a species of

mycelia. Fruit bodies, which may appear alone or in groups on the ground in conifer duff, are usually attached to buried woody debris, and are commonly associated with melting snow. Plectania nannfeldtii is found in western North America and in Asia, often at higher elevations. Similar black cup fungi with which P. nannfeldtii may be confused include Pseudoplectania vogesiaca, P. nigrella, and Helvella corium
.

Taxonomy

The species was first described by British mycologist

type specimens were found in 1914 in Tolland, Colorado, by mycologist Lee Oras Overholts;[2] further collections were reported from Colorado and California in 1930.[3] The species has also been referred to as Macropodia nigrella,[4] Helvella nigrella,[5] and Macroscyphus nigrellus.[6]

In 1957

ascospores.[7] Vernacular names for the species include the "black felt cup",[8] "Nannfeldt's Plectania",[9] or the "black snowbank cup fungus".[10]

Description

Fruit bodies grow on rotting wood.

The

mycelium at the base of the stem is black.[2] The flesh is thin and blackish-gray.[11]

Edibility has not been determined for this species.[12]

Microscopic features

In mass, the spores are white.

light microscopy when stained with methyl blue.[15] The spore-bearing cells, the asci, are about 500 µm long and 20 µm wide. The asci are operculate, that is, with a flap at one end that opens to discharge the spores.[13] Interspersed between the asci are numerous sterile, filamentous dark-brown cells called paraphyses that are slightly enlarged on one end, and 380–420 µm long by 4–5 µm wide.[2]

Similar species

Pseudoplectania nigrella (left) and Helvella corium (right) are lookalike species.

Based on external appearance, Plectania nannfeldtii is similar to Pseudoplectania vogesiaca. Although this latter species may be difficult to distinguish by its less hairy external fruit body surface, its microscopic characters identify it more definitively: P. vogesiaca has spores that are much smaller, typically with widths of 12–14 µm.[2] Helvella corium is another black cup fungus that appears in the spring; it has smaller spores, whitish margins on the cup edges, and shorter stems than P. nannfeldtii.[11] P. melastoma and P. milleri have, at most, short stipes.[16] Pseudoplectania nigrella is smaller, with a hairier outer surface, a darker inner cup surface, and a rudimentary stem.[14]

Habitat and distribution

Plectania nannfeldtii is typically found at higher elevations in

Sierra Nevada and in higher elevations of the Pacific Coast Ranges.[17] Its distribution also includes China[4] and Japan.[18]

See also

References

  1. ^ "Plectania nannfeldtii Korf". Index Fungorum. CAB International. Retrieved 2010-07-07.
  2. ^ a b c d Seaver FJ (1928). The North American Cup-Fungi (Operculates). New York, New York: Seaver. p. 48.
  3. JSTOR 3753967
    .
  4. ^ a b Teng SC (1963). Fungi of China [Chung-kuo Ti Chen-chun] (in Chinese). p. 762.
  5. ^ Tai FL (1979). Sylloge Fungorum Sinicorum (in Chinese). p. 157.
  6. ^ Bi ZS, Zheng G, Li T (1990). Macrofungus flora of the mountainous district of North Guangdong (in Chinese). p. 26.
  7. JSTOR 3755734
    .
  8. ISBN 978-0-395-91090-0
    .
  9. ISBN 0-89301-062-6
    .
  10. ISBN 978-0-89815-169-5
    .
  11. ^
    ISBN 978-1-56579-192-3
    .
  12. ^
    ISBN 978-0-520-03656-7
    .
  13. ^
    JSTOR 3756769
    .
  14. ^
    ISBN 978-0-88192-935-5
    .
  15. doi:10.1139/b95-188
    .
  16. ISBN 978-0-88192-935-5
    .
  17. ^ Wood M, Stevens F. "Plectania nannfeldtii". California Fungi. MykoWeb. Archived from the original on 2011-01-02. Retrieved 2010-07-07.
  18. ISSN 0029-0289
    .

External links

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