Marasmius siccus (Schwein.) Fr., Epicrisis Systematis Mycologici: 382 (1838) (syn: Agaricus siccus Schwein., Chamaeceras siccus (Schwein.) Kuntze);
Orange pinwheel;

Identification help: Here in Mumbai, I’ve seen tiny red mushrooms growing on tree trunks in the monsoon. They only stay for a few days and are only seen during monsoon. Can anyone help with identification. I’m attaching a poor quality photo here. 

… possibly Marasmius siccus (orange pinwheel) … had put similar mushroom for ID query earlier.

Marasmius siccus

Hooghly -Marasmius sp.? : Attachments (7). 4 posts by 3 authors.
This one is growing on a decaying branchlet, in front of my home; recorded on the day before yesterday (03-Oct-13).

The photos are of Marasmius, but the first two picture and the remaining ones are from two different species. The mushrooms in the first two pictures have wiry stipe, I believe its M. siccus. I am not sure of the of the second species as its morphology is similar to several different species of Marasmius

They must be of different species, as have been noted by you. And, yes, the first one has wire like stipe. They are growing side by side, a ft apart, that’s why i thought that one is drying/decaying stage of the other!