Jasmine tree

Jasmine tree
	Jasmine tree ( Millingtonia hortensis )
Systematics
	Asterids
	Euasterids I
Order :	Mint family (Lamiales)
Family :	Trumpet Family (Bignoniaceae)
Genre :	Millingtonia
Type :	Jasmine tree
Scientific name of the genus
	Millingtonia
	L. f.
Scientific name of the species
	Millingtonia hortensis
	L. f.

The jasmine tree ( Millingtonia hortensis ), also known as the Indian cork tree, is the only species of the Millingtonia plant genus in the trumpet tree family (Bignoniaceae).

description

Habitus

Foliage leaves and flowers with the long corolla tube

Bloom in detail

fruit

Vegetative characteristics

The jasmine tree grows as a tree and reaches heights of 8 to 25 meters.

The opposite arranged leaves are divided into a petiole and a leaf blade. The petiole is about 1 cm long. The two- to three-ply divided leaf blade is 40 to 100 cm long. The leaflets are entire, usually 5 to 7 (rarely only 2) cm long and 1.5 to 4 cm wide. The base is rounded and sloping, the tip is pointed. There are four to five lateral veins on each side of the main axis of the leaflet.

Generative characteristics

The terminal, zymose paniculate inflorescences have a diameter of about 25 cm. The inflorescence shafts are provided with a pale yellow hair. The bracts and bracts are thrown off. The pale yellow hairy flower stalks are slender and about 1 cm long.

The hermaphrodite flowers are zygomorphic and five-fold with a double flower envelope . The curved, lobed calyx is small, cup-shaped, and 2 to 4 mm long and wide. The five petals are fused into a narrow and with a length of 3 to 7 cm relatively long corolla tube, which has a diameter of only 2 to 3 mm at its base. The white crown is two-lipped. The upper lip is bilobed and the lower lip trilobed. In the bud the corolla lobes are circular, to the anthesis with a length of 1 to 2 cm ovate-lanceolate. Along the edge, the corolla lobes are densely hairy on top. The four stamens are inserted in two different sizes relatively high up in the corolla tube. The anthers consist of an ellipsoid, fertile theca, the second theca is stunted to a tailed appendix. A sterile staminodium is formed next to the stamens . The disc is ring-shaped and cup-shaped. The seated, ovoid ovary is bare and contains a large number of ovules , which are in four rows. The relatively long stylus ends in a tongue-shaped, flattened, bilobed scar that protrudes slightly over the crown.

The capsule fruits , which spring up with a gap in the septum, are 30 to 35 cm long and 1 to 1.5 cm in diameter, linear and flattened and contain many seeds in a few rows. The tiny seeds are disc-shaped, elongated, and flattened. Including the membranous and translucent wing that surrounds them, they have a size of 1.5 to 3.5 × 1 to 1.5 cm.

The number of chromosomes is 2n = 30.

Occurrence

Millingtonia hortensis is found in southern Yunnan , Cambodia , Laos , Myanmar , Thailand and Vietnam . It grows in Yunnan on mountain slopes at altitudes of 500 to 1200 meters. Millingtonia hortensis is widely grown in Pakistan , India , Indonesia, and Malaysia .

Systematics

The genus Millingtonia was established in 1782 by Carl von Linné the Younger in Supplementum Plantarum , pages 45 and he first described the species Millingtonia hortensis on page 291. The generic name Millingtonia honors the British doctor and botanist Thomas Millington (1628-1704). Synonyms for Millingtonia hortensis L. f. are: Bignonia suberosa Roxb. nom. superfl., Nevrilis suberosa Raf. nom. superfl., Bignonia hortensis (L. f.) Oken , Bignonia azedarachta J. Koenig , Bignonia cicutaria J. Koenig ex Mart. , Millingtonia dubiosa Span.

literature

Zhang Zhiyun, Thawatchai Santisuk: Bignoniaceae .: Millingtonia and Millingtonia hortensis , p. 214 - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven (ed.): Flora of China. Volume 18: Scrophulariaceae through Gesneriaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1998, ISBN 0-915279-55-X .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Zhang Zhiyun, Thawatchai Santisuk: Bignoniaceae .: Millingtonia and Millingtonia hortensis , p. 214 text online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven (ed.): Flora of China. Volume 18: Scrophulariaceae through Gesneriaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1998, ISBN 0-915279-55-X .
↑ Millingtonia hortensis at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
↑ Millingtonia hortensis at Tropicos.org. In: Flora of Pakistan . Missouri Botanical Garden, St. Louis
^ Millingtonia at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 2, 2018.
↑ ^a ^b Rafaël Govaerts (ed.): Millingtonia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 2, 2018.
↑ Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]

Web links

Commons : Millingtonia hortensis - Collection of images, videos and audio files

Species description with pictures at Toptropicals .

[FoC-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Zhang Zhiyun, Thawatchai Santisuk: Bignoniaceae .: Millingtonia and Millingtonia hortensis , p. 214 text online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven (ed.): Flora of China. Volume 18: Scrophulariaceae through Gesneriaceae. Science Press and Missouri Botanical Garden Press, Beijing and St. Louis 1998, ISBN 0-915279-55-X .

[IPCN-2] Millingtonia hortensis at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis

[FoPakistan-3] Millingtonia hortensis at Tropicos.org. In: Flora of Pakistan . Missouri Botanical Garden, St. Louis

[Tropicos-4] Millingtonia at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 2, 2018.

[WCSP-5] Rafaël Govaerts (ed.): Millingtonia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 2, 2018.

[Burkhardt2018-6] Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]