Polystachya neobenthamia

Polystachya neobenthamia is a species of flowering plants from the orchid family, Orchidaceae.[1] It is terrestrial,[2] lithophilic and grows among leaf litter and other detritus on rock faces. It is endemic to Tanzania.

Polystachya neobenthamia
Inflorescence of Polystachya neobenthamia
Long, slender stems of Polystachya neobenthamia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Genus: Polystachya
Species:
P. neobenthamia
Binomial name
Polystachya neobenthamia
Synonyms[1]
  • Neobenthamia gracilis Rolfe
  • Polystachya holtzeana Kraenzl.

Description

This species produces slender, reed-like stems, which bear distichously arranged, linear leaves. The inflorescence is erect and the rachis is bent apically.[2][3] The flowers have four laterally flattened pollinia.[4]The pollinia are relatively hard.[5]

Taxonomy

It was formerly placed in a separate, monotypic genus Neobenthamia Rolfe under the name Neobenthamia gracilis Rolfe. This is however now a synonym of Polystachya neobenthamia Schltr.[1] Under the inclusion of P. neobenthamia the genus Polystachya is a monophyletic group. This species is the sister group to Polystachya dendrobiiflora.[2]

References

  1. "Polystachya neobenthamia Schltr". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 30 October 2022.
  2. Russell, A., Samuel, R., Rupp, B., Barfuss, M. H., Šafran, M., Besendorfer, V., & Chase, M. W. (2010). "Phylogenetics and cytology of a pantropical orchid genus Polystachya (Polystachyinae, Vandeae, Orchidaceae): Evidence from plastid DNA sequence data." Taxon, 59(2), 389-404.
  3. Mytnik-Ejsmont, J., & Szlachetko, D. L. (2011). "Isochilostachya Mytnik and Szlach., gen. nov., a new genus of Polystachyinae Schltr.(Orchidaceae)." Acta Societatis Botanicorum Poloniae, 80(1).
  4. Dressler, R. L., & Dodson, C. H. (1960). "Classification and phylogeny in the Orchidacea." Annals of the Missouri Botanical Garden, 25-68.
  5. Poinar, G., & Rasmussen, F. N. (2017). "Orchids from the past, with a new species in Baltic amber." Botanical Journal of the Linnean Society, 183(3), 327-333.
  • Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (1999). Genera Orchidacearum 1. Oxford Univ. Press.
  • Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2001). Genera Orchidacearum 2. Oxford Univ. Press.
  • Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2003). Genera Orchidacearum 3. Oxford Univ. Press
  • Berg Pana, H. 2005. Handbuch der Orchideen-Namen. Dictionary of Orchid Names. Dizionario dei nomi delle orchidee. Ulmer, Stuttgart


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