Spotting

Description:

I'm pretty sure its a Cryptostylis orchid. It may be a variation of C. erecta, but is different in that the flower is mostly white, as opposed to purple and white. The morphology of the flower might be different, or it may merely not have opened.

Habitat:

Sydney Australia. Dry sclerophyll forest.

Notes:

I need opinions as to whether it's a white mutation of Cryptostylis erecta or another species.