Paphiopedilum chamberlainianum (O'Brien) Pfitzer 1895 SUBGENUS Cochlopetalum [Haller] Karasawa & Saito 1982 Photo by © Lourens Grobler

Common Name Chamberlain's Paphiopedilum [English Orchid Grower]

Flower Size about 4" [to 10 cm]

Found in Sumatra at elevations around 2000 meters as a small to medium sized, cool to cold growing lithophytic orchid with large, oblong, faintly mottled, minutely bilobed apically leaves that blooms throughout the year on a terminal, erect, to 1 1/2' [45 cm] long, 4 to 8 flowered inflorescence with the flowers produced successively over a long period of time.

This orchid is now considered to be a synonym of P victoria-reginae and most likely is as they are very close but I have left them separate for now pending better references.

Synonyms Cordula chamberlainiana Rolfe; *Cypripedium chamberlainianum O'Brien 1892; Paphiopedilum chamberlainianum var. latifolium Schltr. 1911; Paphiopedilum victoria-regina subsp. chamberlainianum (O'Brien) M.W.Wood 1976; Paphiopedilum victoria-regina var. latifolium (Schltr.) Beckner 2002

References W3 Tropicos, Kew Monocot list IPNI ; Xenia Orchidaceae Vol 3 Reichenbach 1896 Cypripedium chamberlainianum drawing fide; Die Orchideen Schlechter 1915; Die Orchideen Schlechter 1915 as P chamberlainianum var latifolium; Atlas des Orchidees Cultivees Constantin 1920 as Cypripedium chamberlainianum drawing fide; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchid Digest Vol 34 #4 1970 drawingphoto fide; Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Lieferung 3 129 to 192; Brieger, Maatsch and Senghas 1971; AOS Bulletin Vol 39 No 5 1970 photo fide; Orchid Digest Vol 37 No 3 1973 photo fide; Orchid Digest Vol 37 No 3 1973 as P chamberlainianum var flavum photo fide; Orchid Digest Vol 37 No 3 1973 as P chamberlainianum var flavescens photo fide; Orchid Digest Vol 42 No 5 1978 photo fide; AOS Bulletin Vol 49 No 3 1980 as P chamberlainianum var latifolium photo fide; Orchid Digest Vol 44 No 4 1980 photo fide; Orchid Digest Vol 44 No 6 1980 photo/drawing fide; Orchid Digest Vol 49 No 1 1985 herbarium sheet/photo fide; Orchid Digest Vol 49 No 3 1985 photo fide; Orchid Digest Vol 49 No 5 1985 photo fide; Orchid Digest Vol 49 No 6 1985 photo fide; Schlechteriana Vol 2 No 2 1991 photo fide; The Genus Paphiopedilum Vol 1 & 2 Braem 1999; AOS Bulletin Vol 71 #9 2002 as P chamberlainianum var latifolium photo fide; Orchid Digest Vol 74 #1 2010 photo fide; Orchid Digest Vol 76 #1 2012 photo fide; Of Men and Orchids Part 1 Jenny 2015 photo fide; AOS Bulletin Vol 85 #3 2016 photo fide;

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