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Yellow Reishi Agar Plate

Yellow Reishi Agar Plate

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Regular price $19.99 USD
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Species Ganoderma curtisii
Difficulty ℹ️ 🍄🍄🍄
Spore Coloration Brown
Ecology Saprotrophic
Edibility Inedible / Medicinal


This polypore bears a marked resemblance to G. lucidum and generally has a stipe, sometimes lacking the characteristic red to purple varnished appearance that G. lucidum possesses. The flesh is spongy in pore tissue and firm in the stipe. The pores bruise brown when damaged. Its habitat of choice is decaying stumps and roots of hardwoods, which aligns perfectly with that of G. sessile.

The name was originally established by Miles Berkeley in 1849 as Polyporus curtisii, and later transferred to the genus Ganoderma by William Alphonso Murrill in 1908. This species is tentative and is a subject of debate as to its viability as a distinct species from North American specimens described as G. lucidum (G. sessile), which is much more widely distributed throughout the US. There is also debate about the identities of several species that resemble G. lucidum and G. tsugae.

One reason for an alleged synonymy between G. sessile and G. curtisii is overlap in habitat, decaying hardwoods. According to Volk, Gilbertson and Ryvarden, authors of North American Polypores, it is not considered a separate species from G. lucidum. Bessette et al., authors of Mushrooms of the Southeastern United States, echo this and list it as a synonym to G. lucidum. Paul Stamets considers G. lucidum and G. curtisii to both be members of a tight-knit species complex.

However, several recent molecular studies have shown Ganoderma curtisii to be genetically distinct from Ganoderma lucidum, calling into doubt the synonymy of the two species and supporting previous mycologists' opinion that it is a distinct species. The same studies support the idea that G. lucidum sensu stricto is actually absent from the North American continent and that the mushroom widely called G.lucidum in North America is instead G.sessile, a member of the Ganoderma resinaceum complex, with Ganoderma curtisii as a separate species.

Some photos on this page were sourced from iNaturalist. Licensed under CC-BY-SA or CC0, taken by mycowalt, Dan Rabatin,  or others.

What Is An Agar Plate?

An agar plate is a petri dish with solidified nutrient solution (I make mine with light malt extract, generally). The dish is sealed with parafilm to keep it sterile while the transfer colonizes the plate.

The mycelial bodies grow on our agar plates in sterile incubators before being shipped to you!

How Do I Store Agar Plates?

Keep your agar plates ideally in the fridge, within a ziplock bag. Let them come to room temperature before opening them - it'll prevent condensation!

How Do I Use Agar Plates?

Grab your scalpel and get to work! Need a scalpel? Check my gear page!

Slides from agar plates can be propagated onto other mediums very easily. The beauty of agar plates is the ability to be absolutely certain that your sample is healthy and clean!

When Will My Agar Plate Ship?

All of my agar plates are made-to-order. This ensures that you have nothing but the freshest, most voracious mycelium when it gets to your doorstep.

Please check for your individual species on this page to see colonization times.

If you're interested in ordering agar plates and other items like liquid culture, or mushroom spores, you can have your order shipped in two by adding this item!

What Comes In My Package?

For each agar plate in your order, you'll receive a healthy, colonized agar plate, and an additional piece of parafilm in case you need to reseal it.

What if Something Goes Wrong?

If you any questions as to the density, sterility or other concerns about your order please email me directly at

Under no circumstances contact us about cultivation of active spores regardless of legality in your home location. Doing so will result in a cancellation of all open orders and denial of any future orders.

While all of our products are made in the most sterile conditions possible, sometimes contamination happens! I'll make it right!

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