Fungi:> Basidiomycota:> Agaricomycetes:> Gomphales:> Phallaceae
Species: Clathrus species
Genus: Unidentified

This is a stinkhorn.
It has a whitish or pinkish hollow stem-like base.
They continue to lengthen with 4 to 8 scarlet arms rising from the stem top which divide in two.
Here you can see the tips joined to the adjacent pair =- they will break free as they ages

Thanks to Clive Shirley and his excellent website – The Hidden Forest:
http://hiddenforest.co.nz/fungi/