Benzingia

Benzingia caudata

The genus Benzingia from the orchid family (Orchidaceae) comprises eight species, all of which occur in Central and South America. The small, perennial plants grow as epiphytes.

Description

All species of this genus form of a creeping rhizome at a short distance unthickened, erect or pendulous short rung. The five to nine leaves are two lines on the shoot and include it with the leaf bases. The leaf form is lanceolate, folded with a slightly wavy margin, along the midrib.

The bloom inflorescence appears laterally from the base of the uppermost leaves. The flowers appear 'upside in some species. The three sepals are shaped the same, sometimes they are fused together at the base. The two lateral petals are fused with the base of the column. The lip is unlobed, slightly recessed at the bottom baggy and grow together with the pedestal. The shape of the lip is round to broadly oval, either flat or rolled with the edges of the column. On the lip is a flat callus. The column is just at the base with a narrow extension of the lip has grown ( " column - foot" ), without lateral wings. The stamen contains four yellow pollinia in two unequal pairs on a short pedicel with a flat, roundish holdfast ( Viscidium ) are connected.

Dissemination

The species of the genus Benzingia come from Costa Rica to Peru before. They grow there as epiphytes in very humid cloud forests at altitudes from 700 to 1500 meters.

System

Within the subfamily Epidendroideae the genus Benzingia in the tribe Maxillarieae and there in the subtribe Zygopetalinae is classified. Established by Dodson 1995, the genus contained only the first two types Benzingia hirtzii and Benzingia estradae. The latter had previously found in the closely related genus Chondrorhyncha Dodson. In 2005, Dressler then other species that were previously known under the name of arable Mania, in this genus. 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.

Was named the genus after David Benzing.

The following eight species have been described in this genus:

  • Benzingia caudata ( Ackerman ) Dressler, Ecuador and Peru.
  • Benzingia cornuta ( Garay ) Dressler, Colombia and northern Ecuador.
  • Benzingia estradae ( Dodson ) Dodson, Ecuador.
  • Benzingia hajekii ( DEBenn. & Christenson ) Dressler, Peru.
  • Benzingia hirtzii Dodson, Ecuador.
  • Benzingia jarae ( DEBenn. & Christenson ) Dressler, Peru.
  • Benzingia palorae ( Dodson & Hirtz ) Dressler, Colombia and Ecuador.
  • Benzingia reichenbachiana ( Schltr. ) Dressler, Costa Rica to Panama.

Documents

  • C. H. Dodson, C. A. Luer (2005): Orchidaceae part 2 (Aa - Cyrtidiorchis ). In: G. Harling, L. Andersson ( eds.): Flora of Ecuador. Vol 76, pp. 18ff, S.65ff. Botanical Institute, Göteborg University, ISBN 91-88896 -51- X
  • Robert L. Dressler (1993 ): Phylogeny and Classification of the Orchid Family. Pp. 172f. Cambridge University Press, ISBN 0-521-45058-6
  • Rolf Diekmann (2001): "fan Orchids" - botanical gems of the subtribe Huntleyinae. Orchid Journal, Vol 8 Issue 1 Online, accessed on 11 December 2007 (PDF, 688 kB)
Resupination Labellum (botany) Pollinium
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