Common Spider Orchid (Arachnorchis patersonii - formerly Caladenia patersonii)

Flowers in Spring (Sept - Oct) - It is now thought that the true Arachnorchis patersonii is confined to Tasmania.

Plants with a similar tailed labellum occur in areas such as western Victoria and Wilson's Prom but seem to be different in other ways.  This orchid requires further study but that seems to be stymied due to the varieties that abound in the wild.

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).


Swan Greenhood (Hymenochilus cycnocephalus - formerly Pterostylis cycnocephala)

Flowers in Spring (Sept - Nov), favours grassland, grassy forest and woodland - soils vary from heavy clay-loams to sandy.

Easily overlooked species because of size and growing environment.  Multi-flowered with the small green labellum having a dark green beak-like appendage.  The photo ruler indicates the height of this particular plant - a total of 2 inches (5cm).

All known pollinators of the Genus Hymenochilus have been male insects of the fungus gnat and mosquito family.


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