Coastal Snail Orchid - Pterostylis sp. 'Coastal Snail'
This greenhood orchid is similar to the above species described by Hoffman and Brown in their book 'Orchids of south-west Australia,' but apparently since that publication the species nana has been deleted from WA orchids (see Update 23/12/08 below). So what this undescribed orchid is now called I am not sure, as this genus is in urgent need of revision. The WA Herbarium Flora-base Website list a number of undescribed Pterostylis species, of which the one called Pterostylis sp. Cape Arid may be the same, but not having the description I am unable to say.
Anyway, this orchid occurs in alkaline sands in sheltered southerly positions below steep (vegetated and stabilised) tertiary dunes. It has a basal rosette when flowering and occurs in compact small colonies during late July and August.
Anyway, this orchid occurs in alkaline sands in sheltered southerly positions below steep (vegetated and stabilised) tertiary dunes. It has a basal rosette when flowering and occurs in compact small colonies during late July and August.
Update 23/12/08
Name changed to comply with species as detailed in the 'Orchids of Western Australia' by Andrew Brown et.al.
