Streptolirion

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Streptolirion
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Commelinales
Family: Commelinaceae
Subfamily: Commelinoideae
Tribe: Tradescantieae
Subtribe: Streptoliriinae
Genus: Streptolirion
Edgew.
Species [1]

Streptolirion is a genus of flowering plants in the family Commelinaceae. It includes two species native to Asia, ranging from Japan and Manchuria to Indochina and the Himalayas. [1]

Streptolirion can be distinguished from the closely related climber Spatholirion by the former's two-seeded carpels and inflorescences that are all subtended by large involucral bracts. [2] They bear yellow hairs below the anthers, which are believed to increase floral attraction by contrasting with the petals or suggesting additional pollen is present. [3]

The genus was first described in 1845 by Michael Pakenham Edgeworth and included a single species, Streptolirion volubile. An analysis of chromosomes found major differences between Japanese and Indian populations, suggesting that an additional species might exist. [4] In 1991 Nobuyuki Fukuoka and Nobuhira Kurosaki designated the Japanese population as a new species, Streptolirion lineare. [5]

References

  1. 1 2 "Streptolirion Edgew". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 21 March 2025.
  2. Hong, Deyuan; DeFillipps, Robert A. (2000), "Streptolirion", in Wu, Z. Y.; Raven, P.H.; Hong, D.Y. (ed.), Flora of China, vol. 24, Beijing: Science Press; St. Louis: Missouri Botanical Garden Press, p. 20{{citation}}: CS1 maint: multiple names: authors list (link)
  3. Faden, Robert B. (1992), "Floral Attraction and Floral Hairs in the Commelinaceae", Annals of the Missouri Botanical Garden, 79 (1): 46–52, doi:10.2307/2399808, JSTOR   2399808
  4. Suda, Yutaka; Faden, Robert B. (1980), "The karyotype of Streptolirion volubile Edgeworth (Commelinaceae) from Japan", Journal of Plant Research, 93 (4): 355–359, doi:10.1007/bf02488739, S2CID   23626501
  5. "Streptolirion lineare Fukuoka & N.Kurosaki". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 21 March 2025.