Arachnis longisepala (J.J.Wood) Shim, Soón & A.L.Lamb 1982 Photo by Peter O'Byrne courtesy of André Schuiteman, Dr. E.F. de Vogel, and Jaap Vermeulen and Their Netherlands National Herbarium Website

Lip Detail Photos by © Gary Yong Gee and his Orchid Photo Webpage

Common Name or Meaning The Long-Sepaled Arachnis

Flower Size 2" [5 cm]

Found in northern Borneo in hill forests in shade low down on tree trunks at elevations of 600 to 800 meters as a medium sized, warm growing epiphyte with a branching stem enveloped completely by old leafless gray, or new green sheaths with the new ones being articulated to the ligulate, unequally, obtusely bilobed apically, coriaceous leaves that blooms in the late winter on a few branched, axillary, laxly few flowered, to 20 3/4" [52 cm] long inflorescence with ovate, obtuse floral bracts and carrying unscented flowers

Synonyms *Arachnis calcarata Holttum subsp. longisepala J.J.Wood 1981

References W3 Tropicos, Kew Monocot list , IPNI ; Orchid Digest Vol 46 No 5 1982 drawing/photo fide; Orchid Digest Vol 46 No 5 1982 photo as Arachnis calcarata subsp. longisepala; Rudolf Schlechter Die Orchideen Band 1B lieferung 22 1329 - 1392 Brieger 1989; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993; A Checklist of the Orchids of Borneo Wood & Cribb 1994; The Orchids of Borneo Vol 3 Wood 1997 drawing/photo fide; Malesian Orhcid Journal Vol 2 2008 photo ok; The Orchids of Mount Kinabalu Vol 1 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 drawing/photo fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011; A to Z of South East Asian Orchid Species Vol 2 O'Byrne 2011 drawing/photo fide