Ganoderma Tsugae Gourmet Mushroom Culture



Your order today will contain:

(1) Sterile 12 ml syringe with locking cap, filled with fresh Ganoderma Tsugae Gourmet Mushroom  mycelium. 

(1) Mylar syringe sleeve for long-term storage.

(2) Alcohol pads.

(1) 16-gauge needle.

(1) Cold / Warm Weather insert (depending on shipping location and time of year)

(1) Free 20-gram sample pack of my mushroom nutrient broth premix.

A $15 value, make 1 liter of your own lab-quality mushroom liquid culture.


Ganoderma Tsugae
Ganoderma Tsugae
Ganoderma tsugae, also known as hemlock varnish shelf, is a flat polypore mushroom of the genus Ganoderma. This incredible mushroom is found almost exclusively on the wood of eastern hemlocks, and its range parallels that of the tree: northern and montane areas east of the Rocky Mountains. It is one of the “laccate” species of Ganoderma, which means it features a beautifully lacquered-looking cap surface. Like other species of Ganoderma its pore surface bruises brown and its spores have double walls with a chambered appearance. Ganoderma oregonense is a similar species found in the Pacific Northwest and California on the wood of various conifers; it features larger spores. Until recently Ganoderma oregonense and Ganoderma tsugae were thought to coexist in the Pacific Northwest, but recent study of hundreds of North American Ganoderma collections by Loyd and collaborators (2017, 2018) failed to support this idea. Description: Ecology: Parasitic and saprobic on the wood of eastern hemlock and perhaps other conifers; causing a white rot (usually a butt rot) of the heartwood; growing alone, scattered, or gregariously; annual; spring through fall; distributed in the northern Midwest, northeastern North America, and the Appalachian Mountains (where eastern hemlocks occur). The illustrated and described collections are from Michigan and Ohio. Cap: 4–16 cm; at first irregularly knobby or elongated, but by maturity more or less fan- or kidney-shaped; with a shiny, varnished surface often roughly arranged into lumpy “zones”; bald; dark red to orangish red or reddish brown when mature; when young often with zones of bright yellow and white toward the margin. Pore Surface: Whitish, becoming dingy reddish brown in age; usually bruising brown; with 4–6 tiny (nearly invisible to the naked eye) circular pores per mm; tubes to 1 cm deep. Stem: Sometimes absent, but more commonly present; 3–14 cm long; up to 3 cm thick; equal or irregular; varnished and colored like the cap; often distinctively angled away from one side of the cap. Flesh: Whitish when fresh; fairly soft when young, but soon tougher; concentric growth zones and melanoid bands (see discussion) absent.

Additional information

Weight 1 oz
Dimensions 9 × 6 × 1 in

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