Prev Taxon: Genus Bulbophyllum section Hoplandra
Current Genus: Genus Bulbophyllum section Hyalosema
Next Taxon: Genus Bulbophyllum section Hymenobractea
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 781
Type: Schlechter 19346 (holo B, lost)
Synonyms:
Epiphyte, creeping. Rhizome elongated. Roots filiform, flexuose, glabrous. Pseudobulbs 2.5-3 cm apart, subcylindrical, 2.5-3.8 by 0.3-0.4 cm above the base; 1-leaved. Leaf suberect, ligulate, obtuse, glabrous, 9-13 by 1.3-1.8 cm; base narrowed. Inflorescences 1-flowered, 8-9 cm high, erect, slender, with a few small peduncle-scales. Floral bracts sheathing, apiculate, much shorter than the pedicellate ovary. Sepals lanceolate, caudate-elongated, subobtuse, 4.8 cm long, outside minutely papillose-puberulous. Lateral sepals falcate. Petals obliquely ovate-lanceolate, 0.6 cm long, subfalcate, elongated into a thread-like tip; near the base notched. Lip obtuse, curved, somewhat fleshy, 0.45 cm long; base quadrangular; in the middle finely pilose; in apical half somewhat narrowed. Column medium-sized; stelidia short, acute; column-foot incurved. Anther oblongoid-cucullate, with a very large umbo, glabrous. Ovary and pedicel glabrous, c. 2.5 cm long. (After Schlechter, 1913)
Flower brownish. Lateral sepals with yellowish apex.
Epiphyte in lowland forest; 0-2900 m.
Malesia (New Guinea).
Papua New Guinea; see map
Warm growing epiphyte.
January, May, June, July, August, September, October, December.
- Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 261, fig. 998
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Dendrobieae
- Subtribe Bulbophyllinae
- Genus Bulbophyllum
- Section Hyalosema
- Species Bulbophyllum urosepalum
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Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., centre of flower, iblique lateral view, photo A. Schuiteman, Leiden cult. 930885 (Jongejan 4730), from Papua New Guinea, Eastern Highlands Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., plant habit, photo E.F. de Vogel, Leiden cult. 20030065 (de Vogel & Vogel), frfom Papua New Guinea, Central Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., flowers, lateral view, photo E.F. de Vogel, Leiden cult. 20030065 (de Vogel & Vogel), frfom Papua New Guinea, Central Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., centre of flower, oblique lateral view, lateral sepal and petal removed, lateral view, photo E.F. de Vogel, Leiden cult. 20030065 (de Vogel & Vogel), frfom Papua New Guinea, Central Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., flower, lateral view, photo A. Schuiteman, Leiden cult. 930885 (Jongejan 4730), from Papua New Guinea, Eastern Highlands Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., centre of flower, lateral view, photo A. Schuiteman, Leiden cult. 930885 (Jongejan 4730), from Papua New Guinea, Eastern Highlands Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., centre of flower, oblique front view, photo A. Schuiteman, Leiden cult. 930885 (Jongejan 4730), from Papua New Guinea, Eastern Highlands Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., centre of flower, oblique front view, photo E.F. de Vogel, Leiden cult. 930885 (Jongejan 4730), from Papua New Guinea, Eastern Highlands Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., flower detail, centre of flower, lateral sepal removed, lateral view, photo E.F. de Vogel, Leiden cult. 930885, Jongejan 4730
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., centre of flower, oblique lateral view, lateral sepal and petal removed, photo E.F. de Vogel, Leiden cult. 930885 (Jongejan 4730), from Papua New Guinea, Eastern Highlands Prov.
Bulbophyllum urosepalum
Bulbophyllum urosepalum Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 261, fig. 998