Английская Википедия:Dendrobium biconvexum
Шаблон:Short description Шаблон:Speciesbox
Dendrobium biconvexum, commonly known as the Mount Windsor rock orchid,[1] is a species of lithophytic orchid that is endemic to tropical North Queensland, Australia. It has spindle-shaped pseudobulbs, between two and four thick, leathery leaves and up to seventy five white or cream-coloured flowers with purple markings on the labellum.
Description
Dendrobium biconvexum is a lithophytic herb with spreading roots and green pseudobulbs Шаблон:Convert long, Шаблон:Convert wide and tapering towards both ends. Each pseudobulb has between two and four thick, leathery dark green leaves originating from its top, the leaves Шаблон:Convert long and Шаблон:Convert wide. Between forty and seventy five white to cream-coloured flowers Шаблон:Convert long and Шаблон:Convert wide are arranged on a flowering stem Шаблон:Convert long. The dorsal sepal is oblong, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals are Шаблон:Convert long, Шаблон:Convert wide, curved and spread widely apart from each other. The petals are linear to oblong, Шаблон:Convert long and about Шаблон:Convert wide. The labellum is cream-coloured with purple markings, Шаблон:Convert long and Шаблон:Convert wide with three lobes. The sides lobes are erect and curved and the middle has a short point on the end. Flowering occurs between July and September.[1][2]
Taxonomy and naming
The Mount Windsor rock orchid was first formally described in 2006 by David Jones and Mark Clements from a plant grown in the Australian National Botanic Gardens from a specimen collected on the Mount Windsor Tableland west of the Daintree National Park. It was given the name Thelychiton biconvexus and the description was published in Australian Orchid Research.[2][3] In 2014, Julian Shaw changed the name to Dendrobium biconvexum.[4] The specific epithet (biconvexum) is derived from the Latin words bis meaning "twice"[5]Шаблон:Rp and convexus meaning "arched outward" or "protuberant",[5]Шаблон:Rp referring to the shape of the pseudobulbs.[2]
Distribution and habitat
Dendrobium biconvexum grows on rocks, cliffs and boulders in or near to rainforest in North Queensland, Australia. It has been recorded on a few mountainous area in and around the Ngalba Bulal National Park.[1][2]
References
