Calanthe aurantiaca Ridl. 1903 SUBGENUS Calanthe SECTION Styloglossum
Photos by © Ong Poh Teck
EARLY 
Common Name The Golden Calanthe
Flower Size 1" [2.5 cm]
Found in penninsular Malaysia, Borneo and Sumatra in montane forests at elevations around 600 to 1700 meters as a small to medium sized, warm to cool growing terrestrial with a short rhizome with small pseudobulbs enveloped completely by leaf bases and carrying about 4, narrowly lanceolate, acuminate, plicate, 5 nerved prominent beneath, narrowing below into the petiolate base leaves that blooms in the spring and early summer on an erect, peduncle to 5.2" [13 cm] long, rachis angular, to 2.4 to 3.2" [6 to 8 cm] long, 10" [25 cm] long, many [to 20] flowered inflorescence with deciduous, early falling, lanceoalte, acute to acuminate floral bracts .
Synonyms Calanthe atjehensis J.J.Sm. 1943; Calanthe rajana J.J.Sm. 1927; Styloglossum aurantiacum ( Ridl. ) T.Yukawa & P.J.Cribb 2014
References W3 Tropicos, Kew Monocot list , IPNI ; Flora of Malaya Vol 1 Holttum 1957; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Wood 1992 drawing fide; Checklist of the Orchids of Borneo Wood & Cribb 1994; as C rajana; Orchids of Sumatra J.B. Comber 2001 as C atejensis; Orchids of Sumatra J.B. Comber 2001; Malesian Orchid Journal Vol 7 2011 drawing good; The Genus Calanthe Clayton & Cribb 2013 drawing/photo good; Malesian Orchid Journal Vol 17 2016 as Styloglossum aurantiacum photo fide;
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