Growing on moss on the trunk of a spruce tree. Portree Forest, Isle of Skye. The slime mould plasmodium comes in a variety of colours and can shift according to substrate, pH, and other environmental factors. Yellow is the colour most commonly found as it is associated with some commonly occurring slime moulds such as Fuligo septica and Physarum polycephalum etc. White plasmodia are also fairly common. The plasmodium grows and enlarges hidden in the forest debris (rotting wood, lead mould etc) then at maturity goes through an active migration phase as it moves to a site for fruiting. Within a day or so, it will transform into a spore containing fruitbody, dry up and blow away.
False Puffball
False Puffball
False Puffball
False Puffball (Reticularia lycoperdon) - JungleDragon
Best Enteridium Lycoperdon Royalty-Free Images, Stock Photos & Pictures
The Fungus Among Us
A Trojan horse approach for white mold biocontrol: Paraconiothyrium endophytes promotes grass growth and inhibits Sclerotinia sclerotiorum - ScienceDirect
White Finger Slime Mold New Hampshire Garden Solutions
White Finger Slime Mold New Hampshire Garden Solutions
Enteridinines A and B from slime mold Enteridium lycoperdon - ScienceDirect
Enteridium lycoperdon: The Ultimate Mushroom Guide
Fungus: kingdom of the fluffies
False Puffball - Breamish Valley