buffy said:

These fungi are Lactarius deliciosus (Saffron milkcap) which is a mushroom that came to Australia from elsewhere when we brought pine trees in and is considered good eating. Growing under pine trees near the Digby phone towers. I’ve seen them there before. Most of them were not in very good nick, especially as the roadside slashing people had just been through. I don’t eat wild mushrooms, but these ones are OK to eat if you are so inclined. It’s interesting that it bruises green, and “bleeds” bright orange latex.

…..

Although it is edible, it apparently acquired its name because it was confused with a much tastier mushroom.

Wikipedia takes up the story:

L. deliciosus is an edible mushroom, but may taste mild or bitter; its misleading epithet, deliciosus (‘delicious’), may have been caused by Linnaeus mistaking it for another species. The mushrooms are collected from August to early October, in the Northern Hemisphere and April to June in the Southern Hemisphere. Traditionally being salted or pickled. High consumption of the species may cause urine to discolor to orange or red.