Public Description of Macrocystidia cucumis (Pers.) Joss.

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Name: Macrocystidia cucumis (Pers.) Joss.
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Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Marasmiaceae


General Description:

http://www.mykoweb.com/...

Cap: 1-6 cm across; bell-shaped at first, becoming broadly bell-shaped, broadly convex, or nearly flat; smooth, silky, or very finely velvety; dark reddish brown, often with a paler margin; fading with age.

Gills: Attached to the stem (sometimes by a notch); close; whitish, becoming yellowish to pinkish yellow.

Stem: Up to 8 cm long and 5 mm thick; more or less equal; dry; finely velvety; tough; colored like the cap, but paler above and darker below.

Flesh: Insubstantial; brownish.

Odor and Taste: Odor strong, reminiscent of cucumbers or fish; taste mild or slightly fishy.

Spore Print: Variable; whitish, pinkish, dirty yellowish, pale pinkish brown.

Chemical Reactions: KOH dark olive, then gray on cap surface.

Microscopic Features: Spores 7-9 × 3-4.5 µ; smooth; elliptical; inamyloid. Enormous, lanceolate cystidia (up to 90 µ long and over 20 µ wide) on cap


Diagnostic Description:
As its genus name suggests, it is covered with enormous cystidia that can be seen even at low magnifications.

Distribution:

widely distributed


Habitat:
in woods, disturbed ground, grassy areas, gardens, and so on; summer and fall (or winter in warm climates);

References:

http://www.speciesfungorum.org/...

Kuo, M. (2007, March). Macrocystidia cucumis. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/macrocystidia_cucumis.html


Notes:

Current Name:
Macrocystidia cucumis (Pers.) Joss., Bull. Soc. mycol. Fr. 39(3-4): 373 (1934)

Synonymy:
Agaricus cucumis Pers., Observ. mycol. (Lipsiae) 1: 45 (1796)
Agaricus nigripes Trog, Flora, Jena 15: 527 (1832)
Agaricus piceus Kalchbr., Icon. Sel. Hymenomyc. Hung. 2: 23 (1874)
Agaricus pisciodorus Ces., (1861)
Galera cucumis (Pers.) Quél., Bull. Soc. Amis Sci. Nat. Rouen, Série II 15: 160 (1880) 1879
Macrocystidia cucumis var. latifolia (J.E. Lange) Imazeki & Hongo, in Hongo, Mem. Fac. lib. Arts Educ. Shiga Univ., Nat. Sci. 7: 42 (1957)
Macrocystidia cucumis var. leucospora (J.E. Lange) Imazeki & Hongo, (1957)
Macrocystis cucumis (Pers.) R. Heim, Inocybe: 71 (1931)
Naucoria cucumis (Pers.) P. Kumm., Führ. Pilzk. (Zwickau): 78 (1871)
Naucoria cucumis var. latifolia J.E. Lange, Dansk bot. Ark. 9(no. 6): 24 (1938)
Naucoria cucumis var. latifolia J.E. Lange, Fl. Agaric. Danic. 5(Taxon. Consp.): VI (1940)
Naucoria cucumis var. leucospora J.E. Lange, Fl. Agaric. Danic. 5(Taxon. Consp.): Vl (1940)
Nolanea nigripes (Trog) Sacc., Syll. fung. (Abellini) 5: 720 (1887)
Nolanea picea (Kalchbr.) Gillet, Hyménomycètes (Alençon): 421 (1876)
Nolanea pisciodora (Ces.) Gillet, Hyménomycètes (Alençon): 420 (1876)


Description author: walt sturgeon (Request Authorship Credit)
Description editor: Jason Hollinger