Specimen #19 Stereum striatum

Figure 1. Stereum striatum

Name: Stereum striatum

Common name: N/A

Family: Stereaceae

Collection date: September 18, 2015

Habitat: found on tree bark

Location: Hiram, OH

Description: "Fruiting body very thin, leathery and pliant when fresh, annual but persistent; bracket-like to cup-like. Cap 0.3-3cm broad but sometimes fused laterally to form lines10cm or more; flat and circular to fan-shaped in outline. Surface dry to whitish to buff or pale brown, sometimes zoned concentrically when moist; covered wit long, loosely-arranged white hairs. Flesh very thin and tough. Underside smooth, buff to pale brown or in some forms of yellow to yellow-brown. Stalk absent present only as a very small knob."

Key used: Arora, David.(1986). Mushrooms Defined second edition. Ten Speed Press.

Keying steps:

1b) Not as above; Spore-bearing surface not composed of tubes, or if composed of tubes then the tubes forming a united layer, fruiting body fleshy, tough, woody

2b) Fruiting body knob-like, hoof-like, bracket-like, shelf-like, or crust-like; stalk absent, rudimentary, or attached at side or top of cap; growing on wood or roots.

4b) Pore surface exposed; not growing on birch then margin not crust-like

5b) Not as above; pore surface differently colored and/or not separable and elastic-gelatinous

6b) Fruiting body normally with a cap, but sometimes resupinate, especially if growing on the undersides of logs.

7a) Spore bearing surface composed of shallow veins which may form very broad "pores or pits"...Stereaceae & Allies pg. 0604

Crust or Parchment fungi

1b) Not as above

2b) Not as above

4b) Not as above

5b) Not as above

7a) Spore bearing surface smooth to slightly uneven or sometimes cracked

8b) Fruiting body usually found on wood

9b) Not as above

10b) Not as above found on hardwoods and/or fruiting body not "bleeding"

11a) Cap silky-sitrate, thin; found on horn beam in eastern North America

Links:

http://mushroomobserver.org/name/show_name/904

http://www.messiah.edu/Oakes/fungi_on_wood/crust%20and%20parchment/species%20pages/Sterium%20striatum.htm