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. These orchids are found in diverse habitats throughout most of the warmer parts of the world including Africa, southern Asia, Latin America, the West Indies, and various islands in the Indian and Pacific Oceans. Orchids in this genus have thread-like or fibrous roots that creep over the surface of trees or rocks or hang from branches. The stem is divided into a rhizome and a pseudobulb, a feature that distinguished this genus from Dendrobium. There is usually only a single leaf at the top of the pseudobulb and from one to many flowers are arranged along an unbranched flowering stem that arises from the base of the pseudobulb. Several attempts have been made to separate Bulbophyllum into smaller genera, but most have not been accepted by the World Checklist of Selected Plant Families.
The pseudobulb is a storage organ found in many epiphytic and terrestrial sympodial orchids. It is derived from a thickening of the part of a stem between leaf nodes and may be composed of just one internode or several, termed heteroblastic and homoblastic respectively. All leaves and inflorescences usually arise from this structure. Pseudobulbs formed from a single internode produce the leaves and inflorescence from the top, while those that are formed from several internodes can possess leaves along its length. The modified sheath leaves that appear at the base of a pseudobulb and often enfold all or part of it are usually dry and papery, though in some orchids the sheaths bear leaf blades and the leaves at the pseudobulb's apex are reduced to scales.
Bulbophyllum globuliforme, commonly known as the green bead orchid, miniature moss-orchid or hoop pine orchid, 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, 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.
Oncophyllum is a genus in the orchid family, Orchidaceae, consisting of only two small species endemic to Australia, and previously classified as being in Bulbophyllum.
Bulbophyllum annandalei or Annandale's Bulbophyllum is a species of orchid in the genus Bulbophyllum in section Cirrhopetalum.
Bulbophyllum clandestinum is a species of orchid in the genus Bulbophyllum. This orchid grows long hanging rhizomes from which it produces tiny pseudobulbs that each bear one leaf. Flowers are born on each node, they are 3–5 cm in length and are a creamy colour. It is native to Borneo, Laos, Malaysia, Myanmar, Thailand, the Philippines, and Vietnam.
Bulbophyllum cruciatum is a species of orchid in the genus Bulbophyllum found in Papua, Papua New Guinea, Seram Island, and Maluku Islands.
Bulbophyllum exiguum, commonly known as the tiny strand orchid, is a species of epiphytic or lithophytic orchid that is endemic to eastern Australia. It has small, roughly spherical pseudobulbs each with a single leaf and up to three small creamy white to yellow flowers emerging from the base of the pseudobulb. This orchid grows in rainforest and dry forest where it often covers the branches of trees or rocks on which it grows.
Bulbophyllum lepidum, is a species of orchid, in the subfamily Epidendroideae and the genus Bulbophyllum, with the common name: Venus' fan bulbophyllum.
Bulbophyllum gracillimum, commonly known as the wispy umbrella orchid, is a species of epiphytic orchid. It has a creeping rhizome, widely spaced, olive green pseudobulbs, each with a single thick, leathery, fleshy leaf and between six and ten purplish red flowers spreading in a semicircular umbel. The flowers have distinctive long, thread-like tails on the lateral sepals. It has a wide distribution and is found in New Guinea, New Caledonia, Indonesia, Malaysia and part of tropical North Queensland.
Bulbophyllum grandimesense, commonly known as the pale rope orchid, is a species of epiphytic orchid with well-spaced pseudobulbs and brown bracts arranged along the stems. Each pseudobulb has a single, fleshy, dark green leaf and usually only a single white flower with thread-like tips on the sepals. It grows on rainforest trees in a small area of tropical North Queensland.
Bulbophyllum lamingtonense, commonly known as the cream rope orchid, is a species of epiphytic or lithophytic orchid with well-spaced pseudobulbs and brown bracts arranged along the stems. Each pseudobulb has a single, fleshy, channelled leaf and a single cream-coloured or white flower with yellow tips. It grows on trees and rocks near cliffs and the edge of rainforest near the eastern border between New South Wales and Queensland.
Bulbophyllum lewisense, commonly known as the Mount Lewis rope orchid, is a species of epiphytic orchid with pseudobulbs and pale brown bracts arranged along the stems. Each pseudobulb has a single, dark green, channelled leaf and a single white flower with pointed tips on the sepals. It grows on the higher branches of rainforest trees, often where it is exposed to breezes on the higher tablelands of tropical North Queensland.
Bulbophyllum lichenoides is a species of orchid in the genus Bulbophyllum. This plant is non-poisonous. It is found in New Guinea on trees in range forests at elevations around 800 meters as a mini-miniature sized, warm growing epiphyte with barely noticeable, cylindrical pseudobulbs carrying a single, apical, patent, oblong, obtuse leaf that blooms in the late winter and early spring on an erect, short to 0.12" (3 mm) long, single flowered inflorescence.
Bulbophyllum nematopodum, commonly known as the green cowl orchid, is a species of epiphytic or lithophytic orchid that has small, flask-shaped pseudobulbs pressed against the surface on which it grows. Each pseudobulb has roots at its base, a single shiny, fleshy leaf and a single cream-coloured flower with red spots on its top. It grows on trees and rocks in rainforest and is endemic to tropical North Queensland.
Bulbophyllum radicans, commonly known as the striped pyjama orchid, is a species of epiphytic or lithophytic orchid with long, hanging stems with roots near the base and covered with brown, papery bracts which partially hide the pseudobulbs. Each pseudobulb has a single thin leaf. A single small pink, cream-coloured or yellow flower with red or purplish stripes is borne on a thin flowering stem that emerges from the base of the pseudobulb. This orchid grows on trees or rocks in or near rainforest in tropical North Queensland.
Bulbophyllum wadsworthii, commonly known as the yellow rope orchid, is a species of epiphytic or lithophytic orchid that forms clumps that hang off the surface on which the plant is growing. The pseudobulbs are small and partly hidden by brown, papery bracts. Each pseudobulb has a single fleshy, dark green leaf and a single star-shaped, cream-coloured or pale green flower with an orange labellum. It mainly grows on trees and rocks in rainforest and is endemic to Queensland.
Bulbophyllum wangkaense is a species of orchid in the genus Bulbophyllum.
Bulbophyllum windsorense, commonly known as the thread-tipped rope orchid, is a species of epiphytic orchid that has small pseudobulbs partly hidden by brown, papery bracts. Each pseudobulb has a single fleshy, dark green, grooved leaf and one or two cream-coloured or greenish flowers. It mainly grows near the breezy tops of trees, especially Callitris macleayana trees and is endemic to tropical North Queensland.
Bulbophyllum wolfei, commonly known as the fleshy snake orchid, is a species of epiphytic or lithophytic orchid with thin, creeping rhizomes, and flattened pseudobulbs each with a single thick, fleshy, dark green leaf and a single cream-coloured flower with dark red stripes. It mostly grows on rainforest trees in tropical North Queensland.
