Dendrobium hasseltii (Blume) Lindl. 1830 SECTION Calyptrochilus Photo courtesy of Andy's Orchids, Copyright 2002 All rights reserved.

Flower Closeup Photo courtesy of David Jubineau and His Bulbophyllum Pages Copyright

Another Color Variation Photo courtesy of Eric Hunt

Plant in Situ in Sumatra Photo by Rici Ricardo

LATE

Common Name Hasselt's Dendrobium [Dutch Botanist in Indonesia 1800's]

Flower Size to 1" [to 2.5 cm]

Found in penninsular Malaysia, Java and Sumatra at altitudes of 1500 to 3000 meters as a small to large sized, cool to cold growing epiphyte on ridges in high mountain, moss forests with slender, fractiflex, short and erect to pendant and long stems carrying many, thin, lanceolate leaves which blooms on a very short, axillary, racemose, few flowered, honey scented inflorescence, several arising from the leaf nodes at the apex of leafless parts of mature canes occuring in the late summer and fall. Plants should be allowed to somewhat dry up between waterings for 2 to 3 months in the winter.

D brinchangense is now said to be a white flowered synonym of this species but I have left them separate pending more research.

Synonyms Callista cornuta (Hook.f.) Kuntze 1891; Callista hasseltii (Blume) Kuntze 1891; Dendrobium cornutum Hook.f. 1890; Dendrobium curtisii Rchb.f. 1881; Pedilonum cornutum (Hook.f.) Rauschert 1983 ; *Pedilonum hasseltii Blume 1825

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1857; Xenia Orchidaceae Rchb.f 1862 drawing; Icones Plantarum Vol 21 Hooker 1890 as D cornutum drawing ok; Die Orchideen Von Java J.J.Sm. 1905; Materials For a Flora of the Malayan Penninsula Part 1 Ridley 1907 as D cornutum; Die Orchideen Von Java Figuren Atlas J.J.Smith 1908 drawing fide; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910; as D curtisii; Die Orchideen Schlechter 1915; Die Orchideen 2 Auflage Schlechter 1927; Flora of Malaya Vol 1 Orchids Holttum 1953 as D cornutum; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchid Digest Vol 45 No 2 1981 photo photo fide; Die Orchideen lieferung 11/12 Schlechter/Brieger 1981 as D curtisii var alba drawing ok; Orchids of Java Comber 1990 photo fide; The Orchids of Penninsular Malaysia Wood & Seidenfaden 1992 as D cornutum drawing ok; A Checklist fot he Orchids of Borneo Wood & Cribb 1994 as D curtisii; Orchid Species Culture; Dendrobium Bakers 1996; Dendrobium and its Relatives Lavarack, Harris and Stocker 2000 photo fide; Orchids of Sumatra Comber 2001 photo ok; Flora Malesiana Orchids of New Guinea Vol II Shuiteman and de Vogel 2002; AOS Bulletin Vol 73 No 3 2004; The Dendrobiums H. P. Wood 2006 photo fide; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 photo fide; Dendrobium of Borneo Wood 2014 photo fide; Genera Orchidacearum Vol 6 Epidendroidee Pt 3 Pridgeon, Cribb, Chase and Rasmussen 2014 photo fide;

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