Frankston Spider Orchid (Arachnorchis robinsonii - formerly Caladenia robinsonii)

Flowers in Spring (Sept - Oct) - favours  disturbed coastal woodland in well-drained soil.  Usually found near or beside Xanthorrhoea australis plants.

This is a highly localized and critically endangered orchid.  The photo ruler indicates the height of this particular plant - a total of 7 inches (18cm).

Pollination of the Arachnorchis species has been studied very little but it is thought that spider orchids are generally pollinated by pseudocopulation (male thynnid wasp).


Foster's Leek Orchid (Prasophyllum fosteri)

Flowers in Spring (Sep - Nov), favours heavy basalt soils in native grasslands.  Localized and endemic to Victoria.

This orchid is only recently described and highly endangered because of loss of habitat.  The photo ruler indicates the height of this particular plant - a total of 8 inches (20cm). 

Bees and wasps are reported to be main pollinators of this genus although syrphiid flies are also frequent visitors.


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