Vanda concolor

Vanda concolor
	Vanda concolor , Illustration in Curtis's Botanical Magazine, under the synonym Vanda roxburghii var. Unicolor
Systematics
Family :	Orchids (orchidaceae)
Subfamily :	Epidendroideae
Tribe :	Vandeae
Sub tribus :	Aeridinae
Genre :	Vanda
Type :	Vanda concolor
Scientific name
	Vanda concolor
	flower

The orchid Vanda concolor is an epiphytic growing plant from Southeast Asia. It is occasionally used as an ornamental plant.

description

Vanda concolor grows as a monopodial epiphyte . The shoot reaches a length of 4 to 13 cm with a diameter of 0.4 to 1 cm. The leathery leaves are arranged in two rows and are 15 to 30 cm long and 1 to 3 cm wide. The tip is asymmetrically bilobed.

In April to May, one or two inflorescences appear each from a leaf axil. The inflorescence axis is 11 to 17 cm long, four to eight flowers are in the front half. The oval bracts are 3 to 5 mm long and 2 to 3 mm wide, they end pointed. The flower stalk and ovary are white and measure 2 to 4.5 cm. The fragrant flowers are fleshy, white on the outside, yellow to brown on the inside, they open wide, their diameter is 3 to 4 cm. The sepals are oblong, inverted-egg-shaped, 1.6 to 2 cm long and 0.6 to 1.2 cm wide, abruptly narrowed (nailed) at the base for a short distance, the edges slightly wavy. The petals are similarly shaped, but slightly smaller. The lip has a white, cylindrical, slightly pointed spur at the base. The side lobes of the three-lobed lip stand upright and are white with reddish dots. The end of the middle lobe is bilobed. The five or six keels running along the lip are covered with papillae. The white column is 0.6 to 0.7 cm long with a yellow stamen .

The number of chromosomes is 2n = 38 or 2n = 76.

distribution

Vanda concolor is native to Southeast Asia, its distribution area extends from the Chinese provinces of Guangxi, Guizhou and Yunnan to Vietnam. It occurs at altitudes of 700 to 1600 meters. It grows as an epiphyte on tree trunks or on rocks at the edge of the forest.

Systematics and botanical history

Vanda concolor was described in 1849 by Carl Ludwig Blume in the fourth volume of his work Rumphia . Synonyms are Vanda esquirolii Schltr. , Vanda roxburghii var. Unicolor Hook. and Vanda guangxiensis Fowlie .

supporting documents

↑ ^a ^b ^c ^d Alexandra Bell, Xinqi Chen: Vanda . In: Wu Zhengyi, Peter H. Raven (Ed.): Flora of China . tape 25 . Missouri Botanical Garden Press, St. Louis 2009, pp. 472 ( efloras.org ).
↑ Rafaël Govaerts (Ed.): Vanda concolor. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 10, 2020.

Web links

Commons : Vanda concolor - album with pictures, videos and audio files

[FoC-1] Alexandra Bell, Xinqi Chen: Vanda . In: Wu Zhengyi, Peter H. Raven (Ed.): Flora of China . tape 25 . Missouri Botanical Garden Press, St. Louis 2009, pp. 472 ( efloras.org ).

[WCSP-2] Rafaël Govaerts (Ed.): Vanda concolor. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 10, 2020.