Dilochia wallichii Lindl. 1830 Photo by Ong Poh Teck and Biological Diversity Clearing House Website

Another Flower? not

Plant ensitu New Guinea Photos courtesy of André Schuiteman, Dr. E.F. de Vogel and Jaap Vermeulen and Their Netherlands National Herbarium Website. and Flora Malesiana Vol III

Common Name Wallich's Dilochia

Flower Size 1" [2.5 cm]

Found in Thailand, Malaysia, Java, Borneo, Moluccas, Sumatra and New Guinea in hill and montane forests often on rocky banks in full sun at elevations of 170 to to 2000 meters as a giant sized, hot to cool growing epiphyte or terrestrial with an elongate stem carrying 2-ranked, lanceolate, acute, upper smaller than lower leaves that blooms in the spring on a terminal raely branched, 6" [15 cm] long, to 10 flowered, inflorescence with long-oval, avute, very concave flroal bracts.1" [2.5] cm between each flower

The first photo is absolutely correct and matches all the references cited below, the second I am not convinced and it is not close to any references below. D wallichii has 3 thinner, somewhat serpentine ridges on the lip, while D cantleyi has 3 major and 2 minor ridges on the lip.

Synonyms Arundina pentandra (Rchb.f.) Rchb.f. 1862; Arundina wallichii (Lindl.) Rchb.f. 1862; Dilochia pentandra Rchb.f. 1857;

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1857 as D petrandra; Xenia Orchidaceae Rchb.f 1862 as Arundina [Dilochia] pentandra drawing fide; Xenia Orchidaceae Rchb.f 1862 as Arundina [Dilochia] wallichii drawing fide; Die Orchideen Von Java J.J.Sm. 1905; Die Orchideen Von Java Figuren Atlas J.J.Smith 1908 drawing fide; Flora of Malaya vol 1 Holttum 1957; The Orchids of Thailand Seidenfaden & Smitinand 1959; Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Brieger, Maatsch and Senghas # 43-46 Thuniinae etc 1984 drawing ok; Orchids of Java Comber 1990 photo fide; The Orchids of Penninsular Malaysia and Singapore Wood & Seidenfaden 1992 drawing/photo fide; The Plants of Mount Kinabalu Vol 2 Orchids Beaman, Wood, Beaman & Beaman 1993 photo fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994; Orchids of Sumatra Comber 2001 photo fide; Lindleyana Vol 17 No 1 2002; Flora Malesiana Orchids of New Guinea Vol III Shuiteman and de Vogel 2005; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 drawing ok/photo good; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide

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