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Bulbophyllum saccolabioides

Bulbophyllum saccolabioides

Bulbophyllum saccolabioides J.J.Sm., Nova Guinea 14 (1929) 449, pl. 72, fig. 96

Type: Lam 1830 (holo BO; iso L (fragments only))

Rhizome shrub-like, more than c. 5 cm long, covered with large, tubular, overlapping, acutely acuminate, keeled, c. 1 cm long sheaths. Roots appressed. Pseudobulbs secund, in two rows, terete, appressed to the rhizome, the appressed side concave, truncate, 0.4-0.6 by 0.2-0.22 cm; 1-leaved. Leaf slightly recurved, narrowly lanceolate, acute, fleshy, c. 3-3.7 by 0.6-0.8 cm; base narrowed and conduplicate, obtusely angled; median channelled with the sides slightly convex; underneath convex; top part underneath minutely impressed punctate. Inflorescences 1-flowered, many, fascicled; peduncle 0.35 cm long, entirely covered with small, clasping, membranous sheaths. Floral bract at the base tubular, obliquely infundibuliform-widened, acute-acuminate, keeled, membranous, 0.36 cm long. Flower very small, 0.38 cm long. Median sepal making an obtuse angle with the ovary, slightly incurved, somewhat 5-angular-ovate, acute, concave, 0.45 by 0.24 cm; margins very minutely papillose; nerves 3, dorsally slightly raised. Lateral sepals porrect, in basal half the facing margins tightly connate, obliquely ovate-elliptic, obtuse, shortly apiculate, concave, 3-nerved, 0.45 by 0.3 cm; upper half with the facing margins narrowly incurved; posterior margins minutely papillose. Petals very small, appressed to the column, porrect, 1-nerved, 0.23 by 0.15 cm; claw cuneate-oblong; top half transversely elliptic-dilated; top acuminate; margins of the dilated part crenulate, papillose. Lip mobile, slightly incurved, strongly concave, very shortly clawed, 3-lobed, when flattened pandurate, 0.28 by 0.18 cm over the lateral lobes; claw base rounded-notched, attached to the column-foot by a very short, thin ligament; lateral lobes erect, obliquely triangular, strongly falcate-recurved, obtuse, inside convex, somewhat fleshy; mid-lobe much larger, porrect, concave-channelled-conduplicate, eo labello 4-lobed, from a short, concave, transversely quadrangular, almost 0.05 by 0.1 cm big claw dilated in a transversely elliptic-oblong, on either side rounded blade with a truncate apex with a minute, obtuse median lobule, slightly more than 0.15 by 0.26 cm not counting the hairs; 3-nerved, the outer nerves branched. Column short, dorsally convex, 0.13 cm long; apex obtuse triangular; clinandrium concave; stelidia not surpassing the anther, triangular, slightly subulate-acuminate, falcate-incurved. Anther cucullate, orbicular, extended in a narrowly porrect, triangular, obtuse beak, 0.05 cm wide; connective fairly low, elliptic, in the middle depressed. Pollini 4, laterally compressed; outer ones elliptic, subobovate, outside convex, almost 0.05 cm long, the 2 inner ones much smaller and thinner.; rostellum short, rounded; stigma small, subquadrangular; column-foot making an obtuse angle with both column and ovary, very short, with free, truncate apex, 0.06 cm long. Ovary 6-grooved, 0.15 cm long; pedicel terete, 0.25 cm long. (After Smith, 1929)

Roots light green. Pseudobulbs light green. Leaf bright green. Sepals and petals pale yellow. Lip with an orange stain at the base, above light yellow. Column light lemon-yellow. Ovary greenish yellow.

Epiphyte on open crest with few trees; 2145-3100 m.

Malesia (New Guinea).

Papua (Indonesia); Papua New Guinea; see map

Distribution of Bulbophyllum saccolabioides in New Guinea

Cool growing epiphyte, requires light position.


  • Royen, P. van, Alp. Fl. New Guinea 2 (1979) 221, fig. 80
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Monanthes
  • Species Bulbophyllum saccolabioides

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Bulbophyllum saccolabioides

Bulbophyllum saccolabioides J.J.Sm., floral analysis, drawing J.J. Smith, from Lam 1830

Bulbophyllum saccolabioides

Bulbophyllum saccolabioides J.J.Sm., Nova Guinea 14 (1929) 449, pl. 72, fig. 96, P. van Royen, drawing, based on Lam 1830 (holo L)

Bulbophyllum saccolabioides

Bulbophyllum saccolabioides J.J.Sm., Nova Guinea 14 (1929) 449, pl. 72, fig. 96, P. van Royen, part of drawing, rearranged, drawing, based on Lam 1830 (holo L)