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Bulbophyllum medusae, commonly known as the Medusa orchid, is a species of epiphytic orchid with a creeping rhizome and a single leaf about 100 mm (3.9 in) long emerging from the top of each pseudobulb. The flowers are creamy yellow and arranged in clusters of about fifteen arranged in a circle at the tip of the flowering stem.
Bulbophyllum is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. It is the largest genus in the orchid family and one of the largest genera of flowering plants with more than 2,000 species, exceeded in number only by Astragalus.
Orchid taxonomy is still being revised and each year about another 150 new species are being discovered. The list of genera alone currently stands just short of 1000 entries. From a cladistic point of view, the orchid family is considered to be monophyletic , i.e. the group incorporates all the taxa derived from an ancestral group.
Diuris carinata is a tuberous, perennial herb with between four and six erect leaves 100–200 mm (4–8 in) long and 3–6 mm (0.1–0.2 in) wide. Between two and seven bright yellow flowers with reddish brown markings, about 30 mm (1 in) long and 20–30 mm (0.8–1 in) wide are borne on a flowering stem 500–800 mm (20–30 in) tall.
Orchids in the genus Diuris are terrestrial, perennial, deciduous, sympodial herbs, usually with a few inconspicuous, fine roots and one or two tubers lacking a protective sheath. The stem is short, erect and unbranched with a leaf-like cataphyll at each node. There are between one and ten grass-like leaves at the base of the plant. [3] [4] [5] [6]
Arethusa bulbosa, commonly called dragon's mouth orchid, [4] is the only species in the orchid genus Arethusa. [3] The genus is named after a naiad of Greek mythology . [ 5 ] This monotypic genus is abbreviated Aret in trade journals.
The term pseudobulb is used to distinguish the above-ground storage organ from other storage organs derived from stems that were underground, namely corms or true bulbs, a combination of an underground stem and storage leaves. Strictly speaking, there is no clear distinction between the pseudobulb and corm structures.
Dipodium stenocheilum O.Schwarz - tropical hyacinth-orchid, from the northern parts of Western Australia, the Northern Territory, and Queensland. Dipodium variegatum M.A.Clem. & D.L.Jones - blotched hyacinth-orchid or slender hyacinth-orchid, from Queensland, New South Wales, and Victoria; Dipodium wenzelii P.O'Byrne - from Borneo