Prev Taxon: Genus Bulbophyllum section Schistopetalum
Current Genus: Genus Bulbophyllum section Sestochilos
Next Taxon: Genus Bulbophyllum section Stachysanthes
Bulbophyllum stockeri
Bulbophyllum stockeri J.J.Verm., Nordic J. Bot. 26 (2008) 193, fig. 37
Type: Stocker cult. 21 (holo SING), from PNG, Madang Prov.
Synonyms:
Rhizome 3.5-4.5 mm in diameter, creeping, bract fibres rather thick, persistent. Pseudobulbs c. 2 by 0.8 cm, ovoid. Leaves: petiole c. 1.5 cm long; blade c. 17 by 4.5 cm, index (length/width) c. 3.8, elliptic, obtuse. Inflorescence c. 6 cm long, 1-flowered; peduncle patent (not seen). Flowers widely opening. Pedicel-with-ovary c. 44 mm long, basal node on a c. 5 mm long stump. Dorsal sepal 16-25 by 9-10 mm, index 1.8-2.5, spreading, elliptic-ovate, obtuse, margins entire, base rather narrowly attached, thick, surface glabrous. Lateral sepals 15-25 by 9.5-11 mm, index 1.3-2.3, free, ovate-triangular, (sub-) acute, base broadly attached, otherwise as the dorsal sepal. Petals 13-17 by 6.5-7 mm, index 1.8-2.6, spreading, elliptic to obovate, subacute, margins entire, base rather narrowly attached, thick, surface glabrous. Lip 8.7-10 by 5.5-6 mm, index 1.6-1.7 (all not flattened), more or less straight, elliptic-ovate, rounded, margins with a rounded edge above the base when observed in side view, entire, thick, surface glabrous; adaxially hardly concave near the base, flat or somewhat convex towards the tip; abaxially with a truncate ridge near the base, top part more or less flat. Column 5.5-6.5 mm long; stigma without teeth at the base; foot without ridges; stelidia c. 1.2 mm long, porrect, deltoid, obtuse to subacute, near the base of the column with a slight, rounded wing; anther-cap and pollinia not seen. (After Vermeulen, 2008)
Sepals and petals cream-coloured, sepals slightly greenish at the tip, all with numerous dark reddish brown dots, lip pale greenish cream suffused and spotted with reddish brown.
Malesia (New Guinea).
Papua New Guinea; see map
May.
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Dendrobieae
- Subtribe Bulbophyllinae
- Genus Bulbophyllum
- Section Sestochilos
- Species Bulbophyllum stockeri
Bulbophyllum stockeri differs from B. hortorum J.J. Verm., P. O'Byrne & A. Lamb (Papua New Guinea) in the broadly acute median sepal (versus shortly acuminate), and the more stunted sepals and petals which are almost solidly coloured in basal half and have bold blotches towards the apex (versus a much finer colour pattern on sepals and petals distributed in lines ).
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Bulbophyllum stockeri
Overview picture of Bulbophyllum stockeri J.J.Verm.
Bulbophyllum stockeri
Bulbophyllum stockeri J.J.Verm., flower, photo T. M. Reeve, based on Reeve 5391
Bulbophyllum stockeri
Bulbophyllum stockeri J.J.Verm., Nordic J. Bot. 26 (2008) 193, fig. 37, J.J. Vermeulen, drawing, plant habit and flower analysis, based on Stocker cult. 21 (holo SING), from PNG, Madang Prov.