Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Subclass: Hymenomycetes
Order: Agaricales
Family: Marasmiaceae
Genus: Marasmius
Species: Marasmius

This tiny mushroom is one of the Marasmius species of fungi. It is a small mushroom (10+mm cap) and had a thin dark red stalk. It was growing at the base of a rata vine during August.
There are about 500 Marasmius in this genus of mushrooms and identifying them sometimes hinges on a microscopic examination.

Marasmius sp. 15 mm.JPG

Marasmius sp. 15 mm-002.JPG

Marasmius sp. 15 mm-001.JPG

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