I suspect this one is C. oenochila re the dark crimson red tips os sepals on bud
Dead. could it be a white shearwater?
Seeds washed up on Point Lonsdale ocean beach. The prevailing currents are westerly moving and the location of the seeds in this observation is east of the mangroves (White Mangrove?) in the Barwon River estuary.
Location was a small nature strip. Regular plan burn completed here too.