Calanthe rigida Carr 1930 SUBGENUS Calanthe SECTION Styloglossum

Plant and Flowers in situ Malaysia Photos by Ong Poh Teck and The Biological Diversity Clearing House Mechanism Website

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Common Name The Rigid Calanthe

Flower Size 1" [2.5 cm]

Found in penninsular Malaysia and Sumatra in montane forests at elevations of 1670 to 2000 meters as a large sized, cool growing terrestrial with close set, cylindrical pseudobulbs carrying lanceolate, very acute, narrowing below into the grooved, petiolate base leaves that blooms on a stout, glabrous, peduncle terete, pale green to 10" [25 cm] long, rachis to 4.8" 12 cm] long, densely many flowered inflorescence with some tubular bracts and deciduous, early falling, lanceolate, acuminate, pale green, the lower ones largest floral bracts

Synonyms Calanthe rigida var. gracilis Carr 1933

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Wood 1992 drawing ok; Orchids of Sumatra J B Cmober 2001; The Genus Calanthe Clayton & Cribb 2013 drawing/photo fide

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