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| Fully grown Ganoderma tsugae on hemlock trees | 
Some warmer weather is finally signalling the Ganoderma tsugae to 
fruit. We find them on eastern hemlock trees (Tsuga canadensis), dead or
 nearly dead trunks. Our eastern hemlocks are under a lot of pressure 
from several sources that are killing them in large numbers: from the 
woolly hemlock adelgid--an invasive insect; to  various fungal blights 
and infections--tip blight, twig blight, needle rusts. The amount of 
dead hemlock trees is steadily increasing, creating more subst
rate for the "hemlock reishi", or "varnish shelf" fungus.
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| Fresh fruiting body, soft and tender at this stage | 
 Ganoderma tsugae is a white rot or butt rot of the heartwood for the 
hemlock tree. It can act like a parasite on live trees and a saprobe on 
dead hemlock wood. The fruiting body is a firm polypore that shelves out
 horizontally from the substrate, sometimes in large colonies. The top 
of the fruiting body comes in a range of colors that changes as it 
ages--starting out with white on the tender new growth and edges, then 
darkening through yellow, orange, reddish-orange, and finally a darker 
reddish-brown after sporulation or with age and weathering. The top of 
the cap also appears very shiny, almost as if it were lacquered. The 
fan-shaped cap can grow up to 10" wide, but more often the caps are 
about 4-7" wide, and there is often a stem present where the cap 
attaches to the wood that is up to 1" thick. The fresh pore surface is 
white; it gets a dirty reddish-tan with age and often supports a colony 
of green mold or algae. There are many cool insects and beetles that 
live on old Ganoderma conks, so there is really no need to remove old 
fruiting bodies from the wood.

 
 Many  people in the eastern part 
of North America where Ganoderma tsugae is abundant love to claim that 
Ganoderma tsugae is the true "reishi" fungus of Chinese medicinal lore, 
seemingly a cure for every cancer, malady, and even a fountain of youth 
treatment. Those same people are more than happy to try and sell some 
dried "reishi" to you to make a bitter decoction or some tinctured 
"reishi", making some pretty big promises as the efficacy of the fungus.
 We don't really get into medicinal fungi, but the actual "reishi" 
fungus is a different species--Ganoderma lucidum, and any actual 
scientific studies into the possible benefits of "reishi" are in regards
 to Ganoderma lucidum.
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| Very young fruiting body, sliced and pan-ready | 
 In the spring, when the fresh growth is 
still white with no hint of any lacquered color showing or any signs of 
pores, we collect the marshmallow-y fruiting body to eat as a fresh 
mushroom. The mushroom should be incredibly tender--it gets tough very 
quickly with any hint of color or once it gets too big. The white blobs 
get sliced thinly, cooked with a touch of oil over medium heat until 
they brown, then hit with a sprinkle of salt for a taste of a mushroom 
that contains a lot of meaty flavor in a small slice.
#hemlockreishi
#varnishshelf
#ganodermatsugae