Prev Taxon: Genus Dendrobium section Herpetophytum
Current Genus: Genus Dendrobium section Latouria
Next Taxon: Genus Dendrobium section Microphytanthe
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., in A. Engler, Pflanzenr IV. 50, II B. 21,45 (1910)150.
Type: W. McGregor s.n. (holo:B, lost; iso:HBG (also photograph and sketch).
Synonyms:
- Dendrobium magnificum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 490; 21 (1923) t. 165, fig. 619.
- Type: Schlechter 18750 (holo B, lost). - Dendrobium terrestre J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 2 (1911) 10; Nova Guinea 12, 1 (1913) 45, t. 13, fig. 35.
- Type: Kock, de 119 (holo BO). - Sayeria terrestris (J.J.Sm.) Rauschert, Feddes Repert. 94 (1983) 468.
- Dendrobium terrestre J.J.Sm. var. sublobatum J.J.Sm., Nova Guinea 12, 4 (1916) 319.
- Type: Gjellerup 1157 (holo BO, iso L).
A large epiphytic or terrestrial herb. Pseudobulbs clustered, terete, rarely dilated above, 9-14-noded below leaves, 20-52 by 0.6-1 cm, covered with compressed sheaths when young, 3-7-leaved in apical third. Leaves well-spaced, coriaceous, suberect or spreading, flat, elliptic, rounded at apex, 7-13 by 3.6-5.5 cm, shortly petiolate. Inflorescences terminal or subterminal, erect or spreading, 10-22 cm long, 6-20-flowered; bracts cucullate, narrowly elliptic, subacute, 11-17 by 6-8 mm. Pedicel and ovary 3 cm long. Dorsal sepal narrowly elliptic, acute, 2.3-2.85 by 0.8-1 cm; lateral sepals obliquely lanceolate, acuminate, 2.4-2.85 by 1 cm; mentum shortly bluntly conical, 5 mm long, forming an acute angle with the ovary. Petals oblong-oblanceolate, apiculate, 2.3-3.1 by 0.8-1.2 cm. Lip 3-lobed near apex to subentire, 2.5-3 by 1.4-1.85 cm; side-lobes erect, obliquely elliptic-oblong; midlobe longer than side-lobes, ovate, slightly recurved at acuminate apex; callus linear, 3-ridged, not reaching base of midlobe. Column 2 mm long; foot short, 4-5 mm long.
(largely after Cribb, 1983).
Flowers ochre-yellow to orange (rarely white), commonly spotted red-purple; lip orange, striped with red. Albino forms are known to occur; these have white sepals and petals and a greenish yellow lip.
Epiphyte or terrestrial in montane forest. Altitude 1800 to 2600 m.
New Guinea, Bismarck Archipelago.
Papua (Central mountain range); Papua New Guinea (widespread, including New Britain).
Cool growing terrestrial, keep in light shade.
January to May, October.
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Dendrobieae
- Subtribe Dendrobiinae
- Genus Dendrobium
- Section Latouria
- Species Dendrobium montisyulei
- Cribb, P.J. 1983. Kew Bull. 38: 277, pl. 14A, B, map 5.
Dendrobium montisyulei Kraenzl. is readily recognised by its distinctively coloured orange or yellow flowers marked with red-purple on the outer surface and on the lip, and by its short mentum. The flowers are structurally similar to those of Dendrobium rigidifolium Rolfe but differ in that the callus ridges on the lip do not extend to the base of the midlobe.
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Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., habit, photo Roy. Bot. Gard. Edin., based on Edinburgh cult. C.5229
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., inflorescence, photo N.E.G. Cruttwell
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., inflorescence, whitish form, photo T.M. Reeve, based on Reeve 360
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., habit, photo P.J.B. Woods, based on Woods 1245
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., flower, photo Roy. Bot. Gardens, Kew, based on Kew cult.
Dendrobium montisyulei
Dendrobium montis-yulei Kraenzl., photo John Cara, plant habit, cult. John Cara, from PNG.
Dendrobium montisyulei
Dendrobium montis-yulei Kraenzl., photo John Cara, flower, front view, cult. John Cara, from PNG.
Dendrobium montisyulei
Dendrobium montis-yulei Kraenzl., photo John Cara, flower detail, centre of flower, front view, cult. John Cara, from PNG.
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium magnificum Schltr.), drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 165, fig. 619
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium rhomboglossum J.J.Sm. var. latipetalum J.J.Sm.), drawing J.J. Smith, based on Gjellerup 1113
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., (as Dendrobium rhomboglossum J.J.Sm. var. latipetalum J.J.Sm.), drawing J.J. Smith, based on Gjellerup 1113
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium rhomboglossum J.J.Sm. var. latipetalum J.J.Sm.), drawing J.J. Smith, based on Gjellerup 1113
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., (as Dendrobium terrestre J.J.Sm. var. sublobatum J.J.Sm.), drawing J.J. Smith, based on Gjellerup 1157
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium terrestre J.J.Sm.), drawing J.J. Smith, based on Gjellerup 1064
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., (as Dendrobium terrestre J.J.Sm.), drawing J.J. Smith, based on Gjellerup 1064
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium terrestre J.J.Sm.), drawing J.J. Smith, based on de Kock 119
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl., (as Dendrobium terrestre J.J.Sm.), drawing J.J. Smith, based on de Kock 119
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium terrestre J.J.Sm. var. sublobatum J.J.Sm.), detail of isotype specimen: Gjellerup 1157 (L)
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium terrestre J.J.Sm. var. sublobatum J.J.Sm. (= Dendrobium terrestre J.J.Sm.), isotype specimen: Gjellerup 1157 (L)
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium rhomboglossum J.J.Sm. var. latipetalum J.J.Sm.), isotype specimen: Gjellerup 1113 (L)
Dendrobium montisyulei
Dendrobium montisyulei Kraenzl. (as Dendrobium rhomboglossum J.J.Sm. var. latipetalum J.J.Sm.), detail of isotype specimen: Gjellerup 1113 (L)