Kingdom: Protista
Phylum: Amoebozoa
Class: Eumycetozoa
Subclass: Myxogastria
Order: Trichiida
Family: Trichiaceae
Genus: Trichia

As of June 2015, there are 34 species in the genus Trichia.

The photos below are of the same group of Trichia slime mould growing inside a hollow,  rotten log. Photos were taken over several days. It was first white then changed colour.

1-Slime mould Trichia species-012.jpg

A day later
1-Slime mould Trichia species-009.JPG

1-Slime mould Trichia species-006.JPG

1-Slime mould Trichia species-007.JPG


1-Slime mould Trichia species-001.JPG  

1-Slime mould Trichia species-002.JPG

1-1-Slime mould Trichia species-013.jpg

For more photos of types of slime moulds visit: 
https://www.disjunctnaturalists.com/slime-mould-log/images-1.htm 

Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/