Dendrobium anosmum Lindley 1845 SECTION Dendrobium Photo cortesy of Dale and Deni Borders

Inflorescence Photo cortesy of Oak Hill Gardens, Copyright 2002 All rights reserved

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Common Name Unscented Dendrobium [A misnomer as this species is quite fragrant] - In China Tan xiang shi hu

Flower Size 2 to 4" [5 to 10 cm]

This very large sized, pendulous, cane orchid with distichous, deciduous leaves, is a native to Malaysia, Laos, Vietnam, Hong Kong, Philippines, Indonesia, and Papua and New Guinea in gallery layers of lower primary forests at elevations up to 1300 meters with terete, arching to pendulous, to 4' [120 cm] long, many noded stem with each node enveloped by a loose fiiting sheath and carrying oblong elliptic, acute, deciduous leaves. It is a warm to hot growing orchid that needs a distinct dry period starting in October until the new leads appear sometime in the early spring. It blooms in the spring with 8 to 10 flowers which arise from the nodes all along the apice of the leafless cane and are held close in, it is quite scented and needs to be mounted on tree fern or a plaque of cork to accomodate the pendant canes. When the new growths appear in the late spring it is time to water and fertilize this plant heavily as it will grow up to 3' long by October when it is time to dry it out again.

Synonyms Callista anosma O. Ktze. 1891; Callista macrophylla [Lindl.] Kuntze 1891; Callista scortechinii O. Ktze. 1891; Dendrobium anosmum var. dearei (Rolfe) Ames & Quisumb. 1935; Dendrobium anosmum var. giganteum [Rchb.f] Valmayor & Tiu 1984; Dendrobium anosmum var. huttonii (Rchb.f.) Ames & Quisumb. 1935; Dendrobium leucorhodum Schlechter 1879; Dendrobium macranthum Hooker or Miquel ?; Dendrobium macrophyllum Lindley not Ames or Richards ?; Dendrobium retusum Llanos 1859; Dendrobium scortechinii Hooker 1890; Dendrobium superbum Rchb.f 1864; Dendrobium superbum Rchb.f var anosmum Rchb.f ? ; Dendrobium superbum var. dearei Rolfe 1891; Dendrobium superbum var. huttonii Rchb.f. 1869

References W3 Tropicos, Kew Monocot list , IPNI ; Die Orchideen Schlechter 1915 as D leucorhodum; Atlas des Orchidees Cultivees Constantin 1920 as D superbum drawing fide; Flora of Malaya Vol 1 Holttum 1957 drawing fide; AOS Bulletin Vol 29 No 7 1960 photo; AOS Bulletin Vol 33 No 3 1964 photo; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchid Digest Vol 42 No 2 1978 photo fide; The Orchids of Papua New Guinea An Introduction Millar 1978 photo fide; AOS Bulletin Vol 51 No 6 1982 photo; Orchidaniana Philippinana Vol 1 Valmayor 1984; The Orchids of Penninsular Malaysia and Singapore Wood & Seidenfaden 1992 drawing/photo fide; Thai Orchid Species Rakpaibulsombay 1992 as D anosmum var delacourii photo fide; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Lowland Orchids of of Papua New Guinea Peter O'Byrne 1994 drawing/photo fide; AOS Bulletin Vol 64 No 1 1995 photo; Orchid Species Culture, Dendrobium Bakers 1996; AOS Bulletin Vol 66 No 2 1997 photo; Oasis Vol 1 No 3 2000 photo; Orchids of Sumatra Comber 2001 photo fide; A to Z of South East Asian Orchid Species Vol 1 O'Byrne 2001 photo fide; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 photo fide; Orchids of Sarawak Beeman & Wood 2001 photo fide; Orchids of the Philippines Cootes 2001 photos fide; Lindleyana Vol 17 No 1 2002; AOS Bulletin Vol 72 No 10 2003 photo; Flora Malesiana Orchids of New Guinea Vol II Shuiteman and de Vogel 2003; AOS Bulletin Vol 73 No 3 2004; AOS Bulletin Vol 73 No 7 2004 photo; AOS Bulletin Vol 73 No 10 2004 photo; AOS Bulletin Vol 74 No 2 2005 photo; AOS Bulletin Vol 74 No 6 2005 photo; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo fide; The Dendrobiums H. P. Wood 2006 photo fide; AOS Bulletin Vol 76 No 4 2007 photo; Wild Orchids in Myanamar Vol 3 Tanaka 2007; AOS Bulletin Vol 77 No 1 2008 photo; The Wild Orchids in Yunnan Xu Xiang Ye & Liu 2010 photos fide; Malesian Orchid Journal Vol 6 2010 photo fide; The Orchids of Mount Kinabalu Vol 1 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 drawing fide; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; The Wild Orchids of Hong Kong Barretto, Cribb and Gale 2011 drawing/photo fide;

Dendrobium anosmum Lindley var alba Hort. 1845

Photo courtesy of Jay Pfahl

References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 29 No 5 1960 photo as D superbum var album; AOS Bulletin Vol 51 No 6 1982 photo;

Dendrobium anosmum Lindley var huttoni [Rchb.f] Ames & Quis. 1935 Photo courtesy of Jay Pfahl

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidaniana Philippinana Vol 1 Valmayor 1984;

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