Tuesday, November 8, 2011

Specimen AB#22 (Spiny Umbrella)

NameLepiotaceae acutesquamosa
FamilyAgaricaceae
Collection Date: 10/11/2011
Habitat: Found growing beside path near rotting log
Location: Hiram College Field Station
Description: "Cap 2-7.5 cm broad, broadly convex to umbonate or plane at maturity; surface dry… covered with small, erect, pointed brown scales."
"Solitary, scattered, or in small groups in woods and in rich soil, widely distributed. Occasional in our area in the fall and winter".
 (Arora, 1986).
Collector: Andrew Burns




Key Used: Arora. D., (1986) Mushrooms Demystified 2nd Edition, Ten Speeds Press, New York, NY

Keying Steps:
Major groups of fleshy fungi… p.52
Agarics… p.58

1b. Gills exposed at maturity…2
2a. Spore print white to buff, yellow, yellow-orange, or lilac tinged… 3
3b. Neither volva nor warts present (but cap and stalk may have scales or fibrils)…4
4a. Gills free and veil present; veil usually forming an annulus (ring) on stalk… 5
5b. Cap dry, stalk dry; gills tissue not divergent… p.293, Lepiotaceae

1a. Fruiting body medium-sized to large; stalk usually at least 6 mm thick; veil usually forming a distinct collarlike or sleevelike annulus (ring) on stalk which may or may not be thick, ragged, and double-edged… 2
2b. Scales and background of cap not white/yellow…3
3a. Cap often covered with pointed, often pyramidal warts…11
11b. Stalk with few if any scales (but underside of veil often has them); mainly found in eastern North America and the Southwest… p. 303, L. acutesquamosa

(Sharp Scaled Parasol)

Correlating Links:
http://www.mushroomthejournal.com/greatlakesdata/Taxa/Lepioacute1023.html

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