All colors are present in our fungi kingdom, White and black inclusive, all palette of colors we can see in it.
When this fungi is young his appearance is brown, but when it is old, have been taking black color, and their texture is very very hard usually the fungi when is young is soft but in the middle and old age their color could be completely different, this is an example.
Do not forget the fungi are magic creatures and if you are not an noble person they maybe do nor reveals to you.
Sorry by English mistakes it is not my natural language, please be carefully with fungi, they can killed you.
Photos are my.