Name: Ganoderma adspersum (Schulzer) Donk
Most Confident Observations:
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Copyright © 2015 zaca
Copyright © 2019 Melanie Byrne
Copyright © 2015 Andrew Tomlinson
Version: 6
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First person to use this name on MO: Nathan Wilson
Editors: walt sturgeon, Erlon Bailey, Matthew Schink, Chaelthomas


Rank: Species

Status: Accepted

Name: Ganoderma adspersum

ICN Identifier: missing

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Author: (Schulzer) Donk

Citation: Proc. K. Ned. Akad. Wet., Ser. C, Biol. Med. Sci. 72(3): 273 (1969)

Deprecated Synonyms: Ganoderma europaeum Steyaert, Polyporus adspersus Schulzer, Polyporus linhartii Kalchbr.


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Polyporales

Family: Polyporaceae

Genus: Ganoderma

Notes on Taxonomy: [Edit]

Collected by : S. Schulzer
Country (state) :

Location details : Vinkovce
Substrate details : Carpinus betulus
Status : Type

G. adspersum (Schulz.) Donk [= G. europaeumSteyaert; G. australesensu auctt. Brit.]
Spores measure 8-5-12"5 X 5’7-7’5 (Io x 6-5) a, Q 1-‘53, and are ovoid to ellipsoid with an applanate adaxial surface and a strongly curved
abaxial surface, but lacking a suprahilar depression. The apex is obtusely conical initially with the translucent perisporium strongly developed and extending up to 3 p[ beyond the brown pigmented exo-episporial layer, but this later collapses to leave a narrowly truncated region, 1"5-2’5 [ diam. Ultrastructurally, the perisporium first appears as a smooth uniform mem- brane covering the entire spore surface. During the course of maturation, depressions parallel with the longitudinal axis of the spore occur which eventually break down to reveal the underlying exosporial ornamentation. Fragmentation is particularly prevalent in the adaxial suprahilar regionexposing the underlying verrucae at an early stage so that a definite supra- hilar plage area, measuring about 3 × 2 p, can often be observed, even under the light microscope. In older spores, the perisporial layer breaks
down into a series of approximately parallel, slit-like openings which finally coalesce to give an irregularly reticulate appearance, remnants of the peri- sporium remaining attached to the exosporial ornament. Removal of the perisporium by chromic acid treatment reveals numerous rod-like exosporial echinules over the surface of the spore. A spore bears about I80-230 echinules which show a distinct tendency to develop in longitudinal rows. Fragmenta- tion of the perisporium occurs between these rows where it is not attached to or supported by the apices of the echinules. Individual echinules measure
o05-1 × 0o2-0-4 , are cylindric and either abruptly truncated or more usually apically expanded into a peltate disk, which frequently coalesces with adjacent apices. Under the light microscope, the ornament appears relatively coarse and is easily visible, even under low magnifications. In ultrathin sections, the episporium is seen as a comparatively thick layer, about 0o3 t thick, and is less electron dense than the overlying, thin exo-
sporium. The small hilar appendix protrudes beyond the perisporium, and bears an open-pore hilum. Fig. 2/5; pl. 23/6-13, 24/1-7.

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Add Comment
By: Matthew Schink (MSchink)
2014-11-07 21:28:25 CST (-0500)

I can’t find any reason for Ganoderma adspersum to be depreciated.

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