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Associations

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Fungus / parasite
subiculate, partly immersed perithecium of Hypomyces lateritius parasitises fruitbody of Lactarius deliciosus

Fungus / parasite
subiculate, partly immersed perithecium of Hypomyces lateritius parasitises fruitbody of Lactarius torminosus

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Comprehensive Description

provided by North American Flora
Peckiella lateritia (Fries) Maire, Ann. Myc. 4: 331. 1906
sphaeria lateritia Fries, in Kunze & Schmidt, Myk. Hefte 2 : 42. 1823.
Hypocrea lateritta Fries, Summa Veg. Scand. 383. 1849.
Hypomyces lateritius Tul. Ann. Sci. Nat. IV. 13 : 11. 1860.
Hypomyces Vuilleminianus Maire, Bull. Herb. Boiss. 7: 138. 1899.
Hypomyces Volemi Peck, Bull. Torrey Club 27 : 20. 1900.
Peckiella Vutlleminiana Sacc. & Syd. in Sacc. Syll. Fung. 16 : 560. 1902.
Peckiella hymenioides Peck, Bull. Torrey Club 34 : 102. 1907.
Stromata effuse, more or less cottony, forming an even layer on the hymenium and more rarely on the stem of the host, entirely obliterating the gills, at first white, becoming pale-yellow or yellowish-brown ; perithecia thickly scattered, immersed or with the necks of the perithecia more or less prominent, darker than the subiculum, yellowish or brownish, ovoid; asci cylindric, of variable length, often attaining a length of 200//; spores fusiform, usually with, a distinct apiculus at each end, unequal-sided, at first smooth, becoming delicately verrucose, hyaline or subhyaline, granular within, nucleate or pseudoseptate, 15-25 X 4-5 y" (mostly 15-20 X 4-5//).
On different species of gill-fungi, especially Laciariae.
Type locality : Europe.
Distribution : Vermont to Alabama ; also in Europe.
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bibliographic citation
Fred Jay Seaver, Helen Letitia Palliser, David Griffiths. 1910. HYPOCREALES, FIMETARIALES. North American flora. vol 3(1). New York Botanical Garden, New York, NY
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Hypomyces lateritius

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Hypomyces lateritius is a parasitic ascomycete fungus that grows on certain species of Lactarius mushrooms, improving their flavor and densifying the flesh. Hosts include L. camphoratus, L. chelidonium, L. controversus, L. deliciosus, Lactarius indigo, L. rufus, L. salmonicolor, L. sanguifluus, L. semisanguifluus, L. tabidus, L. trivialis, and L. vinosus.[1]

It is a microscopic fungus causing the formation of a macroscopic whitish subiculum over the hymenium of its host species, preventing gill formation.[1] Presence of H. lateritius also often deforms the cap and stipe.[1] Parasitization by H. lateritius does not prevent latex from forming when the flesh is cut.[2]

Distribution

Hypomyces lateritius can be found wherever lactarius species can be found, in North America from Alaska to Mexico and in Europe from the Iberian peninsula to the Ukraine. In Asia in Kazakhstan, Kyrgyzstan and Western Siberia. It has also been reported in New Zealand and South Africa.

Synonyms

Sphaeria lateritia Fries, Syst. Mycol. 2: 338. 1823.

Hypocrea lateritia (Fr.) Fries, Summa Veg. Scand. 383.1849.

Peckiella lateritia (Fr.) Maire, Ann. Mycol. 4: 331.1906.

Byssonectria lateritia (Fr.) Petch, J. Bot. Lond. 75: 220.1937.

Hypomyces volemi Peck, Bull. Torrey Club 27: 20. 1900.

Peckiella hymenioides Peck, Bull. Torrey Club 34: 102.1907.

Hypomyces camphorati Peck, New York State Bull. 205:23. 1905 (1906).

Peckiella camphorati (Peck) Seaver, Mycologia 2: 68.1910.[1]

Hypomyces camphorati (syn. Peckiella camphorati) is sometimes treated as a separate species from H. lateritius.[3] Subiculum of specimens with L. camphoratus host tends more yellowish, and displays slightly larger ascospores.[1] More research is required to determine whether H. lateritius is a single species or a species complex.[1]

References

  1. ^ a b c d e f Rogerson, Clark T.; Samuels, Gary J. (1994). "Agaricicolous Species of Hypomyces". Mycologia. 86 (6): 839–866. doi:10.2307/3760597. ISSN 0027-5514. JSTOR 3760597.
  2. ^ "Fichas micológicas - Hypomyces lateritius". Retrieved August 6, 2021.
  3. ^ "Peckiella camphorati". iNaturalist United Kingdom. Retrieved 2021-11-25.

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Hypomyces lateritius: Brief Summary

provided by wikipedia EN

Hypomyces lateritius is a parasitic ascomycete fungus that grows on certain species of Lactarius mushrooms, improving their flavor and densifying the flesh. Hosts include L. camphoratus, L. chelidonium, L. controversus, L. deliciosus, Lactarius indigo, L. rufus, L. salmonicolor, L. sanguifluus, L. semisanguifluus, L. tabidus, L. trivialis, and L. vinosus.

It is a microscopic fungus causing the formation of a macroscopic whitish subiculum over the hymenium of its host species, preventing gill formation. Presence of H. lateritius also often deforms the cap and stipe. Parasitization by H. lateritius does not prevent latex from forming when the flesh is cut.

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