Morchella tomentosa

Morchella tomentosa, commonly called the gray, fuzzy foot, or black foot morel, is a species of fungus in the family Morchellaceae.[2] M. tomentosa is a fire-associated species described from western North America, formally described as new to science in 2008.[1]

Morchella tomentosa
Scientific classification
Kingdom:
Fungi
Division:
Ascomycota
Class:
Pezizomycetes
Order:
Pezizales
Family:
Morchellaceae
Genus:
Morchella
Species:
M. tomentosa
Binomial name
Morchella tomentosa
M.Kuo (2008)[1]
Synonyms

M. atrotomentosa McKnight (1987)

Morchella tomentosa
float
Mycological characteristics
smooth hymenium
cap is conical or ovate
hymenium attachment is irregular or not applicable
stipe is bare
spore print is cream to yellow
ecology is mycorrhizal or saprotrophic
edibility: choice

Morchella tomentosa is identified by its post-fire occurrence, fine hairs on the surface of young fruit bodies, and a thick, "double-walled" stem.[1][3] It also has unique sclerotia-like underground parts.[4] Color can range from black and "sooty" to gray, brown, yellow, or white, although color tends to progress from darker to lighter with age of the fruiting body.[2] Three other wildfire-adapted morels were described from western North America in 2012: M. capitata, M. septimelata, and M. sextelata. None of these three new species share the hairy surface texture of M. tomentosa.[5]

Phylogeny

Based on studies of DNA, M. tomentosa is clearly a distinct species apart from the yellow morels (M. esculenta & ssp.) and black morels (M. elata & ssp.).[4] Mushroom collectors also use the common name "gray morel" for M. esculenta-type morels in eastern North America.[2]

References
  1. Kuo M. (2008). "Morchella tomentosa, a new species from western North America, and notes on M. rufobrunnea" (PDF). Mycotaxon. 105: 441–6.
  2. Kuo M. (November 2008). "Morchella tomentosa". MushroomExpert.com. Retrieved 2011-03-20.
  3. McFarlane EM, Pilz D, Weber NS (2005). "High-elevation gray morels and other Morchella species harvested as non-timber forest products in Idaho and Montana" (PDF). Mycologist. 19 (2): 62–8. doi:10.1017/S0269915X0500203X.
  4. Stefani FO, Sokolski S, Wurtz TL, Piché Y, Hamelin RC, Fortin JA, Bérubé JA (2010). "Morchella tomentosa: a unique belowground structure and a new clade of morels" (PDF). Mycologia. 102 (5): 1082–8. doi:10.3852/09-294. PMID 20943507. S2CID 6103729. Archived from the original (PDF) on 2011-07-20. Retrieved 2011-03-20.
  5. Kuo M, Dewsbury DR, O'Donnell K, Carter MC, Rehner SA, Moore JD, Moncalvo JM, Canfield SA, Stephenson SL, Methven AS, Volk TJ (11 April 2012). "Taxonomic revision of true morels (Morchella) in Canada and the United States". Mycologia. 104 (5): 1159–77. doi:10.3852/11-375. PMID 22495449. S2CID 45219627.
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