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-born 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. This trait is shared with no other known flowering plant.[4]

Species

Species list from both GRIN[5] and ThePlantList[6]

ImageScientific nameDistribution
Edgeworthia albiflora NakaiSichuan, China
Edgeworthia chrysantha Lindl.Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangxi, Yunnan, Zhejiang provinces of China
Edgeworthia eriosolenoides K.M.Feng & S.C.HuangSE Yunnan, China
Edgeworthia gardneri (Wall.) Meisn.Bhutan, India, N Myanmar, Nepal, China(E Xizang, NW Yunnan), Vietnam
Edgeworthia longipes LaceMyanmar, India

References

  1. 1 2 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. 1 2 3  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. ↑ 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.
  5. ↑ 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.
  6. ↑ "Query for Edgeworthia". ThePlantList. Retrieved June 30, 2011.


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