Discina fastigiata

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Discina fastigiata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Pezizomycetes
Order: Pezizales
Family: Discinaceae
Genus: Discina
Species:
D. fastigiata
Binomial name
Discina fastigiata
(Krombh.) Svrček & J. Moravec (1972)
Synonyms[1]
List
  • Helvella fastigiata Krombh. (1834)
  • Gyromitra fastigiata (Krombh.) Rehm (1895)
  • Physomitra infula var. fastigiata (Krombh.) Boud. (1907)
  • Maublancomyces fastigiatus (Krombh.) Herter (1951)
  • Maublancomyces fastigiata (Krombh.) Herter (1951)
  • Neogyromitra fastigiata (Krombh.) McKnight (1968)

Discina fastigiata is a species of fungus in the family Discinaceae.[1] Its common names are brown false morel and brown gyromitra. It is related to species containing the toxin monomethylhydrazine, so its consumption is not advised.[2]

Description

The cap of Discina fastigiata is 4-10 cm wide, and is composed of multiple upwardly curved lobes, usually with three tips. The texture is ribbed and brain-like. The lobes are irregularly folded over and sloped towards the stem. The colour varies from yellow to reddish-brown[3] to black, when the spores are mature. The inside of the cap is hollow and white.[4]

The stipe is chalk-white and cylindrical, though thickening at the base and ribbed like the cap. Inside it is made out of hollow or stuffed connected channels. It measures 60-80 mm long and 25-60 mm thick. The lower part of the stipe is always covered in dirt. The flesh is white,and fragile. Its texture is watery to succulent. It smells slightly sperm-like. [4]

The hymenium (spore-bearing surface) is on the outside of the cap. The transparent spores are long and elliptical, measuring 25–30 × 11–14 µm. The surface of the spores is rough to webbed and they contain 1-3 oil drops.[5] Each ascus contains 8 spores, and measures 18-25 x 440-525 µm. The walls of the asci show no reaction in Melzer's reagant.[4]

It has 5-9 µm wide, thin-walled, yellow-brown paraphyses with 3-5 septa. [4]

Distribution

Discina fastigiata grows in southeastern and midwestern United States, as well as the Great Lakes region. It fruits throughout spring. It grows alone or in groups on soil, leaf litter or rotting wood in hardwood forests.[4]

References

  1. ^ a b "Gyromitra fastigiata (Krombholz) Rehm 1895". MycoBank. International Mycological Association. Retrieved 2012-11-04.
  2. ^ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuides. p. 510. ISBN 978-0-7627-3109-1.
  3. ^ Kay, Sherry; Morse, Caleb; Sikes, Benjamin (2022). A New Guide to Kansas Mushrooms. University Press of Kansas. p. 261. ISBN 9780700633067.{{cite book}}: CS1 maint: date and year (link)
  4. ^ a b c d e Ammirati, Joseph F.; Traquair, James A.; Horgen, Paul A. (1985). Poisonous Mushrooms of the Northern United States and Canada. University of Minnesota Press. p. 124. ISBN 9780816614073.{{cite book}}: CS1 maint: date and year (link)
  5. ^ Bessette, Alan E.; Bessette, Arleen R.; Fischer, David W. (September 1997). Mushrooms of northeastern North America. Syracuse University Press (published 1997). p. 474. ISBN 9780815603887.{{cite book}}: CS1 maint: date and year (link)


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