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Edgeworthia

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Edgeworthia
E.  chrysantha
(synon. E. papyrifera, E. tomentosa)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Subfamily: Thymelaeoideae
Genus: Edgeworthia
Meisn.[1][2]
Type species
Edgeworthia gardneri [3]
Species

See text

Edgeworthia (paper bush) is a genus of plants in the family Thymelaeaceae. When the genus was first described, it was published twice in the same year (1841), in two separate publications: Plantarum vascularium genera: secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae;[1] and Denkschriften der Regensburgischen Botanischen Gesellschaft.[2] The genus was named in honour of Michael Pakenham Edgeworth, an Irish botanist and official in the Bengal Civil Service, then stationed in India, and for his half-sister, writer Maria Edgeworth.[2]

Trichotomous branching

At least one member of the genus, Edgeworthia chrysantha, has the extremely unusual ability to branch trichotomously - the apical meristem forming the end of each stem splits into three sections at once, leading to its Japanese name mitsumata (三椏, three-fork).[4] This trait is shared with no other known flowering plant.[5]

Species

Species list from both GRIN[6] and ThePlantList[7]

Image Scientific name Distribution
Edgeworthia albiflora Nakai Sichuan, China
Edgeworthia chrysantha Lindl. Myanmar, south and southwestern China[8]
Edgeworthia eriosolenoides K.M.Feng & S.C.Huang SE Yunnan, China
Edgeworthia gardneri (Wall.) Meisn. Bhutan, India, N Myanmar, Nepal, China(E Xizang, NW Yunnan), Vietnam
Edgeworthia longipes Lace Myanmar, India

References

  1. ^ a b In: Plantarum vascularium genera: secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae. 1: 330. 1841. "Name - !Edgeworthia Meisn". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved June 30, 2011.
  2. ^ a b c  In: Denkschriften der Regensburgischen Botanischen Gesellschaft. Regensburg. iii. (1841) 280. t. 6. "Plant Name Details for Genus Edgeworthia". IPNI. Retrieved June 30, 2011.
  3. ^  The type species, E. gardneri was taken from its basionym, Daphne gardneri (which was first published in Asiatic Researches 13: 388, pl. 9. 1820.) "Name - Daphne gardneri Wall". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved June 30, 2011.
  4. ^ https://www.echizenwashi.jp/english/aboutus/paper.html
  5. ^ Iwamoto, A.; Matsumura, Y.; Ohba, H.; Murata, J.; Imaichi, R. (2005-08-01). "Development and structure of trichotomous branching in Edgeworthia chrysantha (Thymelaeaceae)". American Journal of Botany. 92 (8): 1350–1358. doi:10.3732/ajb.92.8.1350. ISSN 0002-9122. PMID 21646155.
  6. ^ GRIN. "Species in GRIN for genus Edgeworthia". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Archived from the original on December 11, 2012. Retrieved June 30, 2011.
  7. ^ "Query for Edgeworthia". ThePlantList. Retrieved June 30, 2011.
  8. ^ https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:831625-1


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