Oncophyllum globuliforme
| Oncophyllum globuliforme (Nicolls). | |
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O. globuliforme
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| Oncophyllum globuliforme |
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Oncophyllum globuliforme (Nicholls)[2] (previously named Bulbophyllum globuliforme),[3] the Green Bead Orchid, or Miniature Moss-orchid.[4][5] is an epiphytic orchid that occurs in subtropical rainforest in Queensland and New South Wales, Australia, in a variety of habitats including warm temperate rainforest, dry rainforest and wet sclerophyll forests at an altitude of 100–900 metres.
One of the smallest orchid species known, the tiny pseudobulbs are about the size of a pinhead and each has a tiny reduced thread-like leaf at the apex. It can form quite extensive mats on tree trunks. Flowering occurs mainly from October to November and May to August. Flowers are cream with yellow labellum, rarely flushed with red and cream labellum, and are carried on a solitary stem in the axils of stem bracts.
It grows on bark and forms a thick mat,[5] on the trunk and larger branches of the Hoop Pine (Araucaria cunninghamii), and is often mistaken for moss or lichen.[4]
A very similar species is the closely related Oncophyllum minutissimum or Red Bead Orchid. This related species possesses small hollow pseudobulbs that contain stomata (organs for gas exchange) on their inner surface. This minimizes the surface area and the danger of loss of water by transpiration.[citation needed]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ D.L.Jones et M.A.Clem., Orchadian 13(9): 421 (2001).
- ↑ Current Species List, Australian National Botanic Gardens.
- ↑ 4.0 4.1 A complete Guide to Native Orchids of Australia, including the island territories, p. 427. David L. Jones. 2006. New Holland Publishers, Frenchs Forest, N.S.W. 2086 Australia. ISBN 1-877069-12-4.
- ↑ 5.0 5.1 Approved Conservation Advice - Australian Government.
External links
- For a good photo of the flowers see: [1]
- For another large photo showing the leaves and good short description see: The Internet Orchid Species Photo Encyclopedia
