Exact species identification is difficult without spore analysis, but the following candidates are likely....

1. Ganoderma applanatum (Artist’s Conk) – very common, grows on dead or weakened wood.

2. Ganoderma adspersum (Southern Bracket) – often found on old hardwood trees.

3. Ganoderma australe – similar to G. applanatum but produces larger fruiting bodies.

4. Ganoderma resinaceum (Resinous Polypore) – often has a lacquer-like, resinous surface.

For a definitive identification, a spore analysis under a microscope or a chemical reaction test with potassium hydroxide (KOH test) would be really helpful.

Ammar Bader Sir,

From which region of Saudi Arabia you have collected the above mushroom sample?

Thanks!

From the holy Mecca, hot and dry region.

Ammar Bader Sir,

I'm not very sure, but the above mushroom could be Ganoderma colossus (=Tomophagus colossus). It has been reported from Saudi Arabia, Oman and Iran.

Thanks!