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| Figure 1. Exidia glandulosa |
Name: Exidia glandulosa
Family: Exidiaceae
Collection Date: October 4, 2011
Habitat: On a wet, old, decaying stump
Location: The West Woods Park in Geauga County
Description: Fruiting body flabby or gelatinous, beginning as a pallid or translucent blister but soon becoming cushion-shaped to irregularly lobed; reddish-black to olive-black soon becoming jet-black (or black from beginning); 1-2 cm broad but often fusing with others to form rows or masses up to 50 cm long; upper surface smooth to minutely roughened or warty. Flesh gelatinous, black. Stalk absent.
Saprobic; growing on recently fallen hardwood sticks and branches (especially on the wood of oaks); commonly encountered in most areas in spring and again in fall, but not infrequently appearing during summer cold spells or winter warm spells; widely distributed in North America. Individual fruiting bodies of Exidia glandulosa fuse together and spread across sticks and small branches of hardwoods. The result is a large, quivering, black patch of gelatinous globs that eventually dry out, leaving a blackish crust on the wood. Exidia glandulosa prefers cooler temperatures, usually fruiting in spring and fall (Kuo, 2007).
Saprobic; growing on recently fallen hardwood sticks and branches (especially on the wood of oaks); commonly encountered in most areas in spring and again in fall, but not infrequently appearing during summer cold spells or winter warm spells; widely distributed in North America. Individual fruiting bodies of Exidia glandulosa fuse together and spread across sticks and small branches of hardwoods. The result is a large, quivering, black patch of gelatinous globs that eventually dry out, leaving a blackish crust on the wood. Exidia glandulosa prefers cooler temperatures, usually fruiting in spring and fall (Kuo, 2007).
Kuo, M. (2007, April). Exidia glandulosa. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/exidia_glandulosa.html
Collector: Cara Tompot
Key Used: Arora, D. (1979). Mushrooms Demystified. Berkeley, CA: Ten Speed Press.
Keying Steps:
Key to the Major Groups of Fleshy Fungi
Basidiomycetes Pg 52.
Fruiting body variously shaped (with or without cap), but always gelatinous or very rubbery; usually growing on wood. Jelly fungi p 669.
Key to Tremellales and Allies:
1b. Not as above- (above: fruiting body brightly colored (yellow, orange, pink, red, or greenish) when fresh, but sometimes losing its color in rainy weather or old age); fruiting body white, grayish, black, reddish-purple, brown, yellow-brown, etc.
9b. Not as above- (above: fruiting body translucent to whitish, grayish, or brownish, with a cap (and usually a stalk), the underside of the cap lined with tiny spines or “teeth.”); underside of the cap lacking minute spines or “teeth.”
10b. Not as above- (above: fruiting body tough, erect, and usually branched (coral-like), white or pallid; found mainly on ground under hardwoods in eastern North America.); usually found on wood or plants.
12a. Fruiting body black (or nearly black) when fresh.
13a. Exidia glandulosa. pg 672.
Links:
http://www.mushroomexpert.com/exidia_glandulosa.html
http://www.mykoweb.com/CAF/species/Exidia_glandulosa.html
http://www.rogersmushrooms.com/gallery/DisplayBlock~bid~5923.asp
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| Figure 2. Exidia glandulosa after preservation. Note the irregulary lobed fruiting body. |
Figure 3. Close up of Exidia glandulosa. The color varies from olive- brown to black.
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| Figure 4. Exidia glandulosa. |
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