Benzingia

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Benzingia
Benzingia caudata

Benzingia caudata

Systematics
Order : Asparagales (Asparagales)
Family : Orchids (orchidaceae)
Subfamily : Epidendroideae
Tribe : Maxillarieae
Sub tribus : Zygopetalinae
Genre : Benzingia
Scientific name
Benzingia
Dodson

The genus benzingia from the family of the orchid (Orchidaceae) includes eight plant species , all in Central and South America occur. The small, perennial plants grow epiphytically .

description

All species of this genus form unthickened, upright or drooping short shoots on a creeping rhizome at a short distance. The five to nine leaves stand in two lines on the stem and enclose it with the leaf bases. The leaf shape is lanceolate, with a slightly wavy leaf margin, folded along the midrib.

The single-flowered inflorescence appears laterally from the base of the uppermost leaves. In some species the flowers are not resupinated . The three sepals are shaped the same, occasionally they are fused together at the base. The two lateral petals are fused with the base of the column . The lip is unlapped, deepened somewhat like a sack at the base and fused with the column base. The shape of the lip is round to broadly oval, either spread out or rolled with the edges around the column. There is a flat callus on the lip. The column is straight, at the base with a narrow extension to which the lip has grown ("column foot"), without lateral wings. The stamen contains four yellow pollinia in two pairs of unequal size, which are connected by a short stalk with a flat, rounded adhesive organ (Viscidium).

Benzingia estradae
Benzingia palorae
Benzingiareichenbachiana

distribution

The species of the genus Benzingia occur from Costa Rica to Peru. There they grow as epiphytes in very moist cloud forests at altitudes of 700 to 1500 meters.

Systematics

Within the subfamily Epidendroideae , the genus Benzingia is classified in the tribe Maxillarieae and there in the subtribe Zygopetalinae . Established by Dodson in 1995, the genus initially contained only the two species Benzingia hirtzii and Benzingia estradae . Dodson had previously placed the latter in the closely related genus Chondrorhyncha . In 2005, Dressler placed other species in this genus that were previously known as Ackermania . Together with other related genera such as Bollea , Chaubardia , Cochleanthes , Huntleya , Kefersteinia and Pescatorea , they form a group within the Subtribe Zygopetalinae, which is sometimes separated as its own Subtribe Huntleyinae.

The following nine species have been described in this genus:

Name declaration

The generic name honors the American botanist David Hill Benzing (born 1937), professor of biology at Oberlin College in Ohio.

literature

  • CH Dodson, CA Luer (2005): Orchidaceae part 2 (Aa-Cyrtidiorchis) . In: G. Harling, L. Andersson (Eds.): Flora of Ecuador . Vol. 76, p. 18ff, p. 65ff. Botanical Institute, Göteborg University, ISBN 91-88896-51-X
  • Robert L. Dressler (1993): Phylogeny and Classification of the Orchid Family . P. 172f. Cambridge University Press, ISBN 0-521-45058-6
  • Rolf Diekmann (2001): "Fan orchids" - botanical gemstones of the Huntleyinae subtribe . OrchideenJournal, Vol. 8 Issue 1. Online, accessed on December 11, 2007 (PDF; 688 kB)

Individual evidence

  1. ↑ a b c d e f g h i j Rafaël Govaerts (Ed.): Benzingia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved July 7, 2018.
  2. ↑ Lotte Burkhardt: Directory of eponymous plant names . Extended Edition. Botanic Garden and Botanical Museum Berlin, Free University Berlin Berlin 2018. [1]

Web links

Commons : Benzingia  - album with pictures, videos and audio files