Dendrobium densiflorum Lindl.

Dendrobium densiflorum (lat. Dendrobium densiflorum) – səhləbkimilər fəsiləsinin dendrobium cinsinə aid bitki növü.

Sinonimləri

• Epidendrum dumunsuttu Buch.-Ham. ex Lindl. (1830)
• Dendrobium clavatum Roxb. (1832)
• Endeisa flava Raf. (1837)
• Dendrobium schroederi Dombrain (1870)
• Dendrobium guibertii Carrière (1876)
• Callista clavata (Roxb.) Kuntze (1891)
• Callista densiflora (Lindl.) Kuntze (1891)C
• Callista guibertii (Carrière) M.A. Clem. (2003)

Mənbə

Dendrobium densiflorum je rostlina z čeledi vstavačovité, pocházející z východní a jihovýchodní Asie. Je příslušníkem širokého rodu Dendrobium zahrnujícího na 1200 druhů. Jedná se o stálezelenou, dlouhokvetoucí orchidej, pěstovanou jako okrasná rostlina i v pokojových podmínkách. Zpravidla žluté či oranžové květy mají průměr cca 3 cm.

• Detail květenství

Externí odkazy

• Obrázky, zvuky či videa k tématu Dendrobium densiflorum ve Wikimedia Commons
• Galerie Dendrobium densiflorum ve Wikimedia Commons

Dendrobium densiflorum is a species of epiphytic or lithophytic orchid, native to Asia. It has club-shaped stems, three or four leathery leaves and densely flowered, hanging bunches of relatively large pale yellow and golden yellow flowers.

Description

Dendrobium densiflorum is an epiphytic or lithophytic orchid with stems that are club-shaped, swollen at the base, 250–400 mm (10–20 in) long and about 20 mm (0.8 in) wide. There are three or four leathery, oblong to lance-shaped leaves 80–170 mm (3–7 in) long and 26–40 mm (1–2 in) wide near the end of the stem. A large number of flowers are densely packed around a hanging flowering stem 60–160 mm (2–6 in) long. Each flower has a greenish white pedicel and ovary 20–25 mm (0.8–1 in) long. The flowers are 30–40 mm (1–2 in) wide with pale yellow sepals and petals and a golden yellow labellum. The sepals are lance-shaped to egg-shaped, 17–21 mm (0.7–0.8 in) long and 8–12 mm (0.3–0.5 in) wide. The petals are almost round, 15–20 mm (0.6–0.8 in) long and 11–15 mm (0.4–0.6 in) wide with irregular edges on the outer half. The labellum is more or less square to round, 17–22 mm (0.7–0.9 in) long and wide with a partly woolly surface. The edges of the labellum surround the column.^[2]

Taxonomy and naming

Dendrobium densiflorum was first formally described in 1830 by John Lindley and the description was published in Nathaniel Wallich's book, Plantae Asiaticae rariores.^[1][3]

Distribution and habitat

Mi hua shi hu grows in the trunks of broadleaved, evergreen trees and on rocks in mountain valleys at elevations between 400 and 1,000 m (1,000 and 3,000 ft). It is found in China, Bhutan, northeastern India, Myanmar, Nepal and Thailand.^{[2][4][5][6][7]}

Dendrobium guibertii and D. amabile are similar species and sometimes confused with D. densiflorum, leading to uncertainty as to the distribution of this species.^[2]

Uses

Chemical compounds useful in medicine, including phenanthrenes have been extracted from this orchid.^[8][9]

References

Dendrobium densiflorum adalah spesies tumbuhan yang tergolong ke dalam famili Orchidaceae. Spesies ini juga merupakan bagian dari ordo Asparagales. Spesies Dendrobium densiflorum sendiri merupakan bagian dari genus Dendrobium.^[1] Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Lindl..

Referensi

Dendrobium densiflorum Lindl., 1830 è una pianta della famiglia delle Orchidacee^[1]. È detta anche "orchidea ananas", in inglese "Pineapple Orchid".

Descrizione

È una orchidea epifita, cioè che cresce su tronchi e rami di alberi, coperti di muschio e solo occasionalmente su pietre (litofita).
Il fusto è eretto, formante da 7 a 12 nodi, a sezione vagamente quadrata, fusiforme o clavato, lungo una trentina di centimetri. Ciascun nodo è rivestito da una guaina bianca e porta da tre a cinque foglie persistenti, di forma ellittica oppure ovale, ad apice acuto. L'infiorescenza è un racemo lungo anche 20 cm, nell'insieme vagamente conico, densamente fiorito con fiori profumati. Il singolo fiore ha breve durata, è grande mediamente 5 centimetri ed ha sepali e petali gialli, mentre il labello dai bordi molto frastagliati, sfuma dal giallo all'arancione^[2].

Distribuzione e habitat

Pianta di montagna che vegeta ad alte quote, dai 1100 ai 1800 metri, nativa del sudest asiatico, in particolare della catena himalayana orientale. Si rinviene in Bangladesh, Nepal, Birmania, Thailandia, Laos, Vietnam, Tibet e Cina meridionale^[2].

Sinonimi

Epidendrum dumunsuttu Buch.-Ham. ex Lindl., 1830
Dendrobium clavatum Roxb., 1832
Endeisa flava Raf., 1837
Dendrobium schroederi Dombrain, 1870
Dendrobium guibertii Carrière, 1876
Callista clavata (Roxb.) Kuntze, 1891
Callista densiflora (Lindl.) Kuntze, 1891
Callista guibertii (Carrière) M.A. Clem., 2003

Coltivazione

Questa specie richiede un periodo di riposo asciutto quindi poca acqua e fertilizzante nei i mesi invernali. Annaffiature e concimature devono essere riprese a primavera^[2].

Note

Dendrobium densiflorum^[1] är en orkidéart som beskrevs av John Lindley. Dendrobium densiflorum ingår i släktet Dendrobium, och familjen orkidéer.^[2][3] Inga underarter finns listade i Catalogue of Life.^[2]

Artens utbredningsområde är från centrala Himalaya till Hainan.^[2]

Bildgalleri

Källor

1. ^ N.Wallich, 1830 In: Pl. Asiat. Rar. 1: 34
2. ^ [a b c] Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (11 april 2014). ”Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist.”. Species 2000: Reading, UK. http://www.catalogueoflife.org/annual-checklist/2014/details/species/id/9803292. Läst 26 maj 2014.
3. ^ WCSP: World Checklist of Selected Plant Families

Externa länkar

• Wikimedia Commons har media som rör Dendrobium densiflorum.
  Bilder & media
• Wikispecies har information om Dendrobium densiflorum.
  Artförteckning

Denna artikel om orkidéer saknar väsentlig information. Du kan hjälpa till genom att tillföra sådan.

Dendrobium densiflorum là một loài lan trong chi Lan hoàng thảo.

Chú thích

Tham khảo

密花石斛（学名：Dendrobium densiflorum）为兰科石斛属下的一个种。

参考文献

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