Oberonia maxima C.S.P.Parish ex Hook.f. 1888 SUBGENUS Menophyllum
Photo by © K Keller/Drawing by Seidenfaden and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
Photo by © The Thai Orchid Source Website
LATE 
Common Name The Grand Oberonia
Flower Size .08" [2 mm]
Found in the eastern Himalayas, Assam, Bhutan, Myanmar and Thailand at eleavations 700 to 1300 meters as a medium sized, cool growing epiphyte with broadly linear, acute, conduplicate leaves that blooms in the late spring and summer on an erect then arching, terminal, peduncle ebracteate, fleshy, cylindrical, fat, to 10" [25 cm] long overall, rachis 5.6 to 6.8" [14 to 17 cm] long, densely many flowered inflorescence with longer than the ovary, oblong, acute floral bracts
This is one of the largest Oberonia.
Synonyms Iridorkis maxima (C.S.P.Parish ex Hook.f.) Kuntze 1891
References Oberonia caulescens Lindl.1830 Botanisk Tidsskrift Bild 70 Hft 1 Contributions to the flora of Thailand VI Seidenfaden 1975 drawing fide; Dansk Botanisk Arkiv Bind 33 nr 1 Orchids of Thailand VII Oberonia & Malaxis Seidenfaden 1978 drawing fide; Orchids of Arunchal Pradesh Hegde 1984; Orchid Monographs Vol 4 Ansari & Balakrishnan 1990 drawing fide/photo fide; Orchids of Bhutan Pearce & Cribb 2002; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo fide; Orchids of India A Glimpse Misra 2007; AOS Bulletin Vol 85 #5 2016 photo fide; Turczaninowia 19 (3): 5–58 L. V. Averyanov, Khang Sinh Nguyen etal 2016 photo fide; A Century of New Orchid Records in Bhutan Royal Government of Bhutan 2017 drawing/photo fide; Orchid Digest Vol 82 #2 2018 Photo fide
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