Dendrobium canaliculatum
| Brown tea tree orchid | |
|---|---|
| Illustration from Curtis's Botanical Magazine | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Epidendroideae |
| Tribe: | Dendrobieae |
| Subtribe: | Dendrobiinae |
| Genus: | Dendrobium |
| Species: | D. canaliculatum |
| Binomial name | |
| Dendrobium canaliculatum | |
| Synonyms[1] | |
Dendrobium canaliculatum, commonly known as the brown tea tree orchid,[2] is an epiphytic or lithophytic orchid in the family Orchidaceae. It has cone-shaped or onion-shaped pseudobulbs, up to six deeply channelled, dark green leaves and up to thirty star-shaped, light brown to caramel-coloured white or greenish to apricot-coloured flowers with darker tips. It grows in tropical North Queensland and New Guinea.
Description[edit]
Dendrobium canaliculatum is an ephiphytic or lithophytic herb that has cone-shaped to onion-shaped pseudobulbs 30–120 mm (1–5 in) long and 10–30 mm (0.4–1 in) wide, each with between two and six leaves on the top. The leaves are dark green, deeply channelled, 100–250 mm (4–10 in) long and 6–12 mm (0.2–0.5 in) wide. The flowering stem is 200–300 mm (8–10 in) long and bears between five and thirty resupinate light brown to caramel-coloured flowers. The flowers are long lasting, pleasantly scented, 20–25 mm (0.79–0.98 in) long and 25–30 mm (0.98–1.2 in) wide. The sepals and petal are twisted near their tips, the sepals 10–15 mm (0.4–0.6 in) long and 3–4 mm (0.12–0.16 in) wide. The petals are spatula-shaped, 13–18 mm (0.5–0.7 in) long and about 3 mm (0.1 in) wide. The labellum is white with purplish marks, 10–13 mm (0.4–0.5 in) long and 7–9 mm (0.3–0.4 in) wide and has three lobes. The side lobes curve upwards and the middle lobe has three wavy ridges. Flowering occurs between August and November.[2][3][4]
Taxonomy and naming[edit]
Dendrobium canaliculatum was first formally described in 1810 by Robert Brown and the description was published in his Prodromus Florae Novae Hollandiae et Insulae Van Diemen.[5][6] The specific epithet (canaliculatum) is Latin word meaning "channelled" or "grooved".[7]
Distribution and habitat[edit]
The brown tea tree orchid usually grows on stunted trees in woodland, grassy forest and along streams on the Cape York Peninsula and in southern New Guinea.[2][3][4]
References[edit]
- ^ a b "Dendrobium canaliculatum". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
- ^ a b c Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 381. ISBN 1877069124.
- ^ a b "Cepobaculum canaliculatum". Trin keys: Australian Tropical Rainforest Orchids. Retrieved 18 November 2018.
- ^ a b "Dendrobium canaliculatum". Orchids of New Guinea. Retrieved 18 November 2018.
- ^ "Dendrobium canaliculatum". Retrieved 18 November 2018.
- ^ Brown, Robert (1810). Prodromus Florae Novae Hollandiae et Insulae Van Diemen. London. p. 333. Retrieved 18 November 2018.
- ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 274.