Odontoglossum ariasii Dalström 2001
Inflorescence Photos © courtesy of Ron Maunder and Paradise Orchid Nurseries
to 
Common Name Arias' Odontoglossum [Peruvian nurseryman - current]
Flower Size
Found in Peru at elevations around 2600 meters as a medium sized, cool to cold growing epiphyte with narrowly egg-shaped, laterally compressed, ancipitous pseudsobulbs enveloped basally by 6 to 8 disitichous, imbricating, conduplicate, lower leafless, upper leaf-bearing sheaths and carrying two, strap-shaped, to narrowly elliptic, to ellongate-oblanceoalte, erect to arching, acute, gradually taper below into the elongate, conduplicate, narrow, petiolate base leaf that blooms on a basal, erect to suberect, paniculate, many flowered inflorescence arising from axils of the basal leaf sheath with 8 to 10, held towards the apex, at right angles to the main stem, 5 to 7 flowered branches.
Synonyms
References W3 Tropicos [http://mobot.mobot.org/W3T/Search/vast.html] , Kew Monocot list [ http://www.kew.org/wcsp/home.do ], IPNI [ http://www.us.ipni.org/ipni/plantsearch?request_type=search&output_format=query&ret_defaults=on Orchid Species Culture, Oncidium Bakers 2006
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