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Arachnis flos-aeris is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Vandeae, subtribe: Aeridinae,  
Genus Arachnis 
Infraspecific taxa recognized within Arachnis flos-aeris: infraspecific taxa
This species is found in S. Indo-China to W. Malesia and Phillipines.
Arach. flos-aeris Jeffrey Champion
Arach. flos-aeris var. insignis 'Black Orchid' Ricardo Valentin-de la Rosa
Arach. flos-aeris Var. insignis Hendrika Kwan
Arach. flos-aeris Jeffrey Champion
Arach. flos-aeris var. gracilis Neo Tuanhong
Arach. flos-aeris Edwin Alberto Pérez
Arach. flos-aeris var. gracilis Emrys Chew
Arach. flos-aeris var. insignis Álvaro Pacheco
Arach. flos-aeris var. insignis CW Lim
Arach. flos-aeris var. gracilis Emrys Chew
Arach. flos-aeris var. gracilis Neo Tuanhong
Arach. flos-aeris Emrys Chew
Arach. flos-aeris var. insignis Álvaro Pacheco
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