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Mount finnigan pencil orchid (Dendrobium brevicaudum)

Description

Epiphytic or lithophytic herb forming slender, pendulous clumps. Stems pendulous, to 200 cm x 3-4 mm, straight, dark green to yellowish. Leaf terminal on stem, pendulous, sessile; lamina linear to terete, 15-60 cm x 0.35-0.5 cm, dark green, fleshy, not grooved, apex obtuse to acute. Inflorescence an axillary raceme, erect, from node near leaf base, 40-60 mm long, wiry; pedicels 9-12 mm long, filiform. Flowers 5-8, moderately crowded, non-resupinate, porrect to nodding, star-shaped, 35-45 mm x 35-45 mm, yellowish to brownish yellow or orange-brown with red central stripes and whitish labellum, strongly fragrant. Sepals and petals widely spreading. Dorsal sepal erect to obliquely erect, narrowly lanceolate, 17-20 mm x 3-4 mm, constricted near base, apex obtuse. Lateral sepals divergent, asymmetric, lanceolate, falcate, 14-16 mm x 4 mm, bases fused to column foot, apex acute to cymbiform. Petals obliquely erect, linear, 18-20 mm x 2-2.5 mm. Labellum curved, 16-19 mm x 6-7 mm, pubescent, 3-lobed; lateral lobes erect, triangular, embracing column; midlobe intensely undulate, apex shortly caudate; upper surface with 3 dark red undulate ridges. Column porrect from end of ovary, 5-6 mm long, anterior surface and margins pubescent. Column foot 4-4.5 mm, at an obtuse angle to column. Capsules pendulous, dehiscent.

Taxonomic tree

  • Domain: Eukarya

    • Kingdom: Plantae

      • Phylum:

        • Class: Liliopsida

          • Order: Asparagales

            • Family: Orchidaceae

              • Genus: Dendrobium