Calanthe aurantiaca Ridl. 1903 SUBGENUS Calanthe SECTION Styloglossum

Side View of Flower

Photos by Ong Poh Teck

Part shade WarmCool Spring EARLY Summer

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;