Bulbophyllum argyropus

Bulbophyllum argyropus, commonly known as the silver strand orchid, [2] is a species of epiphytic or sometimes lithophytic orchid that is endemic to eastern Australia, including Lord Howe and Norfolk Islands. It has crowded pseudobulbs, tough, dark green leaves and up to four small whitish to yellowish flowers with an orange labellum.

Silver strand orchid
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Dendrobieae
Genus: Bulbophyllum
Species:
B. argyropus
Binomial name
Bulbophyllum argyropus
Synonyms[1]

Description

Bulbophyllum argyropus is an epiphytic, rarely an lithophytic herb with crowded, warty and furrowed pseudobulbs 5–8 mm (0.2–0.3 in) long and 4–6 mm (0.16–0.24 in) wide. Young pseudobulbs are covered with papery white bracts. There is a single tough, dark green leaf, 20–45 mm (0.8–2 in) long and 4–6 mm (0.16–0.24 in) wide on each pseudobulb. Up to five whitish or yellowish flowers 5–6 mm (0.20–0.24 in) long and about 4 mm (0.16 in) wide are arranged on a warty, thread-like flowering stem 15–30 mm (0.59–1.2 in) long. The sepals are about 4 mm (0.2 in) long and 1 mm (0.039 in) wide, the lateral sepals are 14–18 mm (0.55–0.71 in) long, the petals about 1 mm (0.039 in) long and wide. The labellum is orange, about 3 mm (0.12 in) long and 2 mm (0.079 in) wide curved and fleshy. Flowering occurs between August and December.[2][3][4][5]

Taxonomy and naming

The silver strand orchid was first formally described in 1833 by Stephan Endlicher who gave it the name Thelychiton argyropus and published the description in Prodromus Florae Norfolkicae.[6][7] In 1876, Heinrich Gustav Reichenbach changed the name to Bulbophyllum argyropus.[8] The specific epithet (argyropus) is derived from the Ancient Greek words argyros meaning "silver"[9]:712 and pous meaning "foot".[9]:343

Distribution and habitat

Bulbophyllum argyropus usually grows on the highest branches of rainforest trees, rarely on rocks. It occurs between the McPherson Range in Queensland and the Dorrigo Plateau in New South Wales as well as on Lord Howe and Norfolk Islands. It has also been reported from New Caledonia.[2][3][4][10]

References
  1. "Bulbophyllum argyropus". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. pp. 420–421. ISBN 1877069124.
  3. "Bulbophyllum argyropus". Australian National Botanic Gardens. Retrieved 4 December 2018.
  4. "Bulbophyllum orchid (Bulbophyllum argyropus)". Lord Howe Island Museum. Retrieved 4 December 2018.
  5. Weston, Peter H. "Bulbophyllum argyropus". Royal Botanic Garden Sydney. Retrieved 4 December 2018.
  6. "Thelychiton argyropus". APNI. Retrieved 4 December 2018.
  7. Endlicher, Stephan (1833). Prodromus Florae Norfolkicae. New York. pp. 32–33. Retrieved 4 December 2018.
  8. "Bulbophyllum argyropus". APNI. Retrieved 4 December 2018.
  9. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  10. "Taxonomy (of Orchidaceae)". Fauna and Flora of New Caledonia. Retrieved 4 December 2018.
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