Bulbophyllum globuliforme

Bulbophyllum globuliforme, commonly known as the green bead orchid,[2] miniature moss-orchid[3] or hoop pine orchid,[4] is a species of epiphytic orchid with tiny spherical pseudobulbs, scale-like leaves and small cream-coloured flowers with a yellow labellum. It grows on the scaly bark of hoop pine (Araucaria cunninghamii), mostly on the McPherson Range on the New South Wales/Queensland border in eastern Australia. Because of its small size it is often dismissed as moss.

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

Oncophyllum globuliforme (Nicholls) D.L.Jones & M.A.Clem.

Description

Bulbophyllum globuliforme is an epiphytic herb with pale green, more or less spherical pseudobulbs that are 1–2 mm (0.04–0.08 in) in diameter. Each pseudobulb has a single papery, scale-like leaf 1–2 mm (0.04–0.08 in) long. A single cream-coloured flower about 3 mm (0.1 in) long and 3–5 mm (0.1–0.2 in) wide is borne on a thread-like flowering stem 10–15 mm (0.4–0.6 in) long. The sepals and petals spread widely, the sepals about 3 mm (0.1 in) long and 2 mm (0.08 in) wide, the petals about 2 mm (0.08 in) long and 0.5 mm (0.02 in) wide. Flowering occurs from September to November and from May to August.[2][3][4][5]

Taxonomy and naming

Bulbophyllum globuliforme was first formally described in 1938 by William Nicholls in the Orchidologia Zeylanica.[6]

Distribution and habitat

The green bead orchid grows on the scaly bark of hoop pine in rainforest, mainly on the McPherson Range in eastern Australia.[2][3][4]

Conservation

This orchid species is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999, and the New South Wales Threatened Species Conservation Act 1995. In Queensland it is classed as "rare" under the Nature Conservation Act 1992.[3]

References
  1. "Bulbophyllum globuliforme". 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. p. 427. ISBN 1877069124.
  3. "Approved Conservation Advice for Bulbophyllum globuliforme (Miniature Moss-orchid)" (PDF). Australian Government Department of the Environment. Retrieved 7 December 2018.
  4. "Hoop pine orchid". New South Wales Government Office of Environment and Heritage. Retrieved 7 December 2018.
  5. Weston, Peter H. "Bulbophyllum globuliforme". Royal Botanic Garden Sydney. Retrieved 7 December 2018.
  6. "Bulbophyllum globuliforme". APNI. Retrieved 7 December 2018.
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