Pterostylis hamiltonii Nicholls 1933 SECTION Diplodium Photo by © John Varigos and His Orchid webpage

Another Flower Photo by Ron Heberle and the Thelymitra Page of The Species Orchid Society of Western Australia

Another Flower Photo by Tony Watkinson and the Species Orchid Society of Western Australia Copyright © 2006 All rights reserved

Part ShadeCold Fall Winter

Common Name or Meaning Hamilton's Pterostylis - In Australia The Red Veined Shell Orchid

Flower Size 2" [5 cm]

Found in Western Australia at elevations of 150 to 300 meters as a miniature sized, cold growing terrestrial with globose tubers giving rise to an erect stem completely enveloped by narrowly ovate, acute, basally clasping leaves going up the stem when in bloom and a basal rosette of ground hugging, blusish green leaves, that blooms in the fall and winter on an erect, 4" [10 cm] long, single flowered inflorescence that has flowers that get redder with age.

Synonyms Diplodium hamiltonii ( Nicholls ) D.L.Jones & M.A.Clem. 2002

References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 38 No 6 1969; Orchids of Australia Nicholls 1969 drawing fide; Orchids of Australia Riley & Banks 2002; Native Orchids of Australia Jones 2006 as Diplodium hamiltonii photo fide

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