Sample #8: Lenzites betulina, fungus
Name: Lenzites betulina
Common Name: Birch Mazegill
Collection Date: October 16,2016
Habitat: Found growing on a decaying log, on the ground.
Location: Hiram College Field Station
Description: A shelf mushroom, containing a multitude of colors: white, tan, grey, brown and slight purple, in a striped patern. Contains gills that branch towards the outside of the mushroom. No stalk present.
Figure 1: Cross section of the Birch Mazegill mushroom.
Figure 2: Top view of the Birch Mazgill mushroom. A pattern of colored lines can be seen. Lines for this sample were tan, brown, orange and cream.
Figure 3: Underside. The gills are wavy, and extend and branch toward the outside of the mushroom. Gives the mushroom a spongy feeling.
Keying Guide Used: Arora, D. (1986). Mushrooms demystified: A comprehensive guide to the fleshy fungi. Berkeley, NY: Ten Speed Press.
Keying Steps:
1a. Spores produced on mother cells called basidia; fruiting
body variously shaped… Basidiomcytoina,
pg 57
Fruiting body
shelflike, brakclike, crustlike, or with a cap and stalk; usually tough or wood
but sometimes fleshy, usually on wood but sometimes terrestrial; spores
produced in a layer or tubes or pores that usually line underside of cap. Stalk
when present usually off-center or lateral (but sometimes central); tube layer
not normally peeling away easily from cap .
Polypores & Bracket Fungi, p.
549
1b. Not as above; spore-bearing surface not composed of
tubes, or if composed of tubes then the tubes forming a united layer (i.e., not
discrete); fruiting body fleshy, tough, woody, etc….2
2b. Fruiting body knoblike, hooflike, bracketlike,
shelflike, or curstlike; sltak absent, rudimentary, or attached to side or top
of cap (or if central, then varnished); growing on wood or roots….4
4b. Pore surface exposed; not growing on birch, or if on
birch then margin not curblike…5
5b. not as above; pore surface differently colored and/ or
not separable and elastic-gelatinous….6
6b. Fruiting body normally with a cap (upper sterile
surface), but sometimes resupinate, especially if growing on the undersides of
logs…7
7b. Spore-bearing surface comprised of a true tube layer
which forms minute to fairly large pores or spore-bearing surface with deep,
elongated, mazelike pockets or even gills or “teeth”….8
8a. Underside of cap (spore-bearing surface) with gills….9
9b. Not as above…Lenzites, Daedalea, & Allies, p.
586
1b. Not as above; flesh whit or pale-colored when fresh (but
may become pale brown in old age or after weathering) or if brown when fresh
then typically less than 1mm thick; pores or gills variable in color (white,
violet-tinged, brown, gray, blackish, etc)…..5
5a. Ca surface decidedly hairy, woolly, velvety when fresh
(but may be nearly smooth in old or very weathered specimens)…6
6a. Underside of cap typically composed of gills or plates
(but sometimes varying to mazelike)…7
7b. Not as above; larger or cap concentrically zoned or
around on conifers or in West…8
8b. Not as above; cap usually zoned; usually
found on hardwoods….Lenzites betulina