• Proposed
  • Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Pseudorhizina korshinskii Jacz.

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Scientific name
Pseudorhizina korshinskii
Common names
Строчевик круглоспоровый
ušiakovka okrúhlovýtrusná
IUCN Specialist Group
Cup-fungi, Truffles and Allies
Assessment status
Under Assessment
Proposed by
Eugene Popov
Tatyana Svetasheva
Eugene Popov, Tatyana Svetasheva
Comments etc.
Anders Dahlberg, Vladimír Kunca

Assessment Notes

Taxonomic notes

= Pseudorhizina sphaerospora (Peck) Pouzar
= Gyromitra sphaerospora (Peck) Sacc.

Why suggested for a Global Red List Assessment?

Rare and distinctive false morel with very characteristic pinkish red to carmine red ribbed stem and dark brown cap. It has wide distribution all over the temperate areas of northern Hemisphere but almost everywhere reported as rare and declining species.  Red-listed in 7 European countries. Threaten by loss of habitat, air pollution, modern forestry. Small populations.

Preliminary global red-list assessment: DD (Data Deficient)

More information needed: The North American reports of the taxon may represent another taxon. Also about its habitat and the status of the population/habitat.

Geographic range

Species with Pan-Holarctic boreo-temperate distribution. Reported from many Central European countries, Scandinavia, European part of Russia ( Jaczewski, 1913; Vassilkov, 1942, 1959;Kapitonov, 2013), Caucasus (Vaasma et al., 1986), Urals (Sirko, 1970), Siberia (Beglyanova, 1973; Astapenko, 1990; Perova, Gorbunova, 2001; Kudashova et al., 2016) Taimyr Peninsula (Stepanova, Raitviir, 1983), Altai (Rakhimova et al., 2015; Gorbunova, 2010, 2017), Russian Far East (Vassilkov, 1959; Bogachova, 2001), Japan (Imai, 1954), Himalaya (Wani et al., 2013), and from eastern North America (Abbott, Currah, 1997; Methven et al., 2013; Beug et al., 2014).

Population and Trends

At least 32 localities are known in Russia (most of them became known after 1960): 9 in European Russia, 1 in Caucasus, 4 in the Urals, ca. 12 in Siberia, 6 in Russian Far East. Status of populations seems to be stable at national level.

Population Trend: Uncertain

Habitat and Ecology

Presumably saprotrophic fungus (Hobbie et al., 2001). In Russia usually reported on rotten wood of coniferous (Larix, Abies, Pinus, Picea), and broadleaved trees (Quercus, Populus, Betula) in different types of coniferous and mixed forests, but also in from man-made habitats; fruits from May till August with maximal number of records in June. Ecology of P. sphaerospora in Europe was reviewed in detail by Holec & Beran (2007)

Boreal ForestTemperate ForestSubtropical/Tropical Moist Montane Forest


Conservation Actions

Research needed

Use and Trade


Abbott, S.P., Currah, R.S. (1997). The Helvellaceae: Systematic revision and occurrence in northern and northwestern North America. Mycotaxon 62: 1-125.
Astapenko, V.V. (1990). Symbiotic relations of wood-destroying fungi in the middle Angara river region. Mikologia & Fitopatologia. 24 (4): 289-298 [in Russian].
Beug, M., Bessette, A.E., Bessette A.R. (2014). Ascomycete Fungi of North America: A Mushroom Reference Guide. University of Texas Press. 502 pp.
Beglyanova, M.I. (1973). On discomycetes of Krasnoyarsky Krai. In: Voprosy botaniki I fiziologii rasteniy (Krasnoyarsk): 3-10. [in Russian].
Bogacheva, A.V. (2001). Operculate discomycetes of the Sikhote-Alin Biosphere Reserve. Mikologia & Fitopatologia. 35(5): 1-9 [in Russian].
Gorbunova, I.A. (2010). Rare species of mushrooms of Altai. Trudy Tigiretskogo Zapovednika. 3: 124-128 [in Russian].
Gorbunova, I.A. (2017). New data on agaricoid fungi of the Katunsky State Nature Reserve and rare fungi of the Republic of Altai (Russia). Nature Conservation Research 2(Suppl. 2): 43–55 [in Russian]. DOI: 10.24189/ncr.2017.032
Gruaz, A. (1994) Découverte de Pseudorhizina sphaerospora en Haute-Savoie. Bulletin trimestriel de la FMBDS 132: 11-13.
Holec, J., Beran, M. (2007). Distribution, ecology and fructification of a rare ascomycete, Pseudorhizina sphaerospora, in the Czech Republic and its habitats in Europe. Czech Mycology. 59 (1): 51–66.
Imai, S. (1954). Elvellaceae Japoniae. Sci. Rep. Yokohama Univ. Sect. 2. 3: 1-35.
Iršė, R. (2004). Diversity and conservation of macromycetes in Dusetos forest, Sartai Regional Park. Botanica Lithuanica, 10(3): 177-194.
Jaczewski, A.A. (1913). Opredelitel’ gribov. T. 1. Sovershennye griby. Saint Petersburg. 934 pp.
Kapitonov V.I. (2013). The finds of new (for Udmurtia) species of macromycetes. Vestnik Udmurt. Univers. Ser. 6. Biologia, Nauki o Zemle. 4: 9-24. [in Russian].
Kudashova, N.N., Gashkov, S.I., Vaishlya O.B. (2016). Rare and protected species of fungi of Tomsk Oblast. Tomsk State University Journal of Biology. 4(36): 79–109 [in Russian].
Methven, A. S., Zelski, S. E., & Miller, A. N. (2013). A molecular phylogenetic assessment of the genus Gyromitra in North America. Mycologia, 105(5), 1306-1314.
Oswald, W., Oswald, I. (2014). Die Großpilze in Vorarlberg (Macromycetes / Österreich). inatura – Forschung online, Nr. 7: 34 S.
Perova, N.V., Gorbunova, I.A. (2001). Macrofungi of the southern part of West Siberia. Novosibirsk. 158 pp. [in Russian].
Rakhimova, Y.V., Nam, G.A., Yermekova, B.D., Jetigenova, U.K., Yessengulova, B.Zh., Zhakhan, N. (2015). Inventory of mycobiota in South-West Altai (Within Kazakhstan). In: Problems of Botany of South Siberia and Mongolia. Proceedings of the 14th International Scientifc and Practical Conference (Barnaul, 25–29 mai 2015). Barnaul. P. 22-35.
Sirko, A.V. (1970) On botanico-geographical regularities in distribution of discomycetes in Urals. In: Botanicheskiye issledovaniya na Urale (Sverdlovsk): 208-215 [in Russian].
Skirgiełło, A. (1957). Helvellella sphaerospora (Peck) Imai en Pologne. Acta Societatis Botanicorum Poloniae, 26(2), 309-317.
Stepanova, I. V., Raitviir, A. G. (1983). Discomycetes in Stationar “Kapczuk” (Peninsula Taimyr). Novosti Sist. Nizsh. Rast. 20: 126–127. [In Russian].
Vaasma, M., Kalamees, K., Raitviir, A.G. (1986). Macrofungi of the Caucasian State Nature Reserve. Scripta Mycologica (Tartu) 13: 1-106.
Vassilkov, B.P. (1942). On one little-known fungus from the family Morchellaceae. Sovetskaya Botanika. 6: 50-51 [in Russian].
Vassilkov, B.P. (1959). On Helvellela sphaerospora (Peck) Imai // Bot. mater. Otd. Spor. Rast. 12: 228-230 [in Russian].
Wani B. A., Pala S. A., Wani A. H. et al. (2013). Two hitherto unreported macro-fungi from Kashmir; Himalaya. Bioresearch Bulletin. 2(2).

Known distribution - countries

Regional Population and Trends

Country Trend Redlisted