Epigeneium treacherianum (Rchb. f. ex Hook. f.) Summerh. 1957 SECTION Racemosum

Specimen Plant

Photo by Eric Hunt, plant grown by Golden Gate Orchids


Common Name Treacher's Epigeneium [Colonial Secretary of Labuan [Island near Borneo] 1800's]

Flower Size 1 1/4 to 3 1/5" [3 to 8 cm]

Found in Borneo and the Philippines high in primary forests in the canopy of large rough barked trees on large branches at elevations of 100 to 1600 meters and needs high humidity and bright light. It is a small sized, hot to cool growing epiphyte with a stout rhizome with crowded, ovoid, 4 to 6 angled, dull brownish green pseudobulbs carrying 2, stiff, oblong-elliptic to narrowly elliptic, retuse, leathery leaves and blooms on a terminal, porrect to pendant, 4 to 6" [10 to 15 cm] long, few to several [2 to 20] flowered, racemose inflorescence with fragrant [dried coconut], resupinate flowers occuring in the summer.

Diagnostic to this species is the fact that, after leaf-fall, at the apex of the pseudobulb, will be a distinct tooth-like point.

Synonyms Callista treacheriana (Rchb.f. ex Hook.f.) Kuntze 1891; Dendrobium lyonii Ames 1908; *Dendrobium treacherianum Rchb. f. ex Hook. f. 1881; Epigeneium lyonii (Ames) Summerh.1957; Katherinea treacheriana (Rchb.f. ex Hook.f.) A.D.Hawkes 1956; Sarcopodium lyonii (Ames) Rolfe 1910; Sarcopodium treacherianum (Rchb.f. ex Hook.f.) Rolfe 1910

References W3 Tropicos, Kew Monocot list , IPNI ; Studies in the Family Orchidaceae Fascile 2 Ames 1908 as Dendrobium lyoniiOrchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as Sarcopodium treacherianum; Orchidaceae of German New Guinea Schlechter 1912 as Sarcopodium treacherianum; Die Orchideen Schlechter 1915 as Dendrobium treacherianum; Die Orchideen 2 Auflage Schlechter 1927 as Dendrobium treacherianum; AOS Bulletin Vol 31 No 11 1962 photo good; Encyclopedia of Cultivated Orchids Hawkes 1965 as E lyonii; AOS Bulletin Vol 36 #10 1967 as E lyonii photo fide; The Complete Writings on Philippine Orchids Vol 1 Quisumbing 1981 as Dendrobium lyonii; The Complete Writings on Philippine Orchids Vol 2 Quisumbing 1981 as Dendrobium lyonii photo fide; Orchidiana Philipiniana Vol 1 Valmayor 1984 as E lyonii; AOS Bulletin Vol 61 No5/478 1992 as E lyonsii drawing fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 as E lyonii photo fide; AOS Bulletin Vol 63 No 10 1994 photo fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Orchids of Borneo Vol 1 Chan, Lamb, Shim & Wood 1994 drawing/photo fide; Orchids Australia Vol 10 No 4 1998 photo; Australian Orchid Review Vol 65 No 4 2000 photo; Rudolf Schlechter Die Orchideen Band 1C lieferung 42 - 43 pg 2626 - 2762 Brieger 2001 as E lyonii photo fide; Orchids of the Philippines Cootes 2001 photo fide; Orchids of Sarawak Beaman, Wood Etal 2001; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003; The Dendrobiums H. P. Wood 2006 photos fide; Mille et Une Mini Orchideees Roguenant 2009 photo fide; Philippine Native Orchid Species Cootes 2009 photo fide; Malesian Orchid Journal Vol 6 2010 photo fide; A to Z of South East Asian Orchid Species Vol 2 O'Byrne 2011 photo fide; A Guide to the Dendrobium of the Philippines Cootes and Tiong 2015 photo fide; AOS Bulletin Vol 86 #7 2017 as Dendrobium treacherianum photo fide;