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Arachnothryx

From Wikipedia, the free encyclopedia

Arachnothryx
Arachnothryx buddleioides
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Subfamily: Cinchonoideae
Tribe: Guettardeae
Genus: Arachnothryx
Planch.
Type species
Arachnothryx leucophylla
Synonyms[1]

Arachnothryx is a genus of flowering plants in the family Rubiaceae. It contains about 101 species which range from Mexico to Peru and to Trinidad.[1]

Taxonomy

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Arachnothryx was named by Jules Émile Planchon in 1849.[2][3] This generic name is derived from Ancient Greek: arachne or arachnos, "a spider", and thrix or trichos, "hair".[4]

As currently circumscribed, Arachnothryx is paraphyletic over Cuatrecasasiodendron, Gonzalagunia, and Javorkaea. Some authors have included these genera in a broadly defined Rondeletia, but molecular phylogenetic studies have shown that they are more closely related to Guettarda than to Rondeletia.[5]

Species

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101 species are accepted.[1]

Formerly placed here

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References

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  1. 1 2 3 "Arachnothryx Planch". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 11 May 2026.
  2. ↑ Arachnothryx In: International Plant Names Index. (see External links below).
  3. ↑ Jules Émile Planchon. 1849. Flore des Serres et des Jardins de l'Europe 5:442 and illustration. (see External links below).
  4. ↑ Quattrocchi U (2000). CRC World Dictionary of Plant Names. Vol. 1. Boca Raton, New York, Washington DC, London: CRC Press. ISBN 978-0-8493-2675-2.
  5. ↑ Manns U, Bremer B (2010). "Towards a better understanding of intertribal relationships and stable tribal delimitations within Cinchonoideae s.s. (Rubiaceae)" (PDF). Molecular Phylogenetics and Evolution. 56 (1): 21–39. doi:10.1016/j.ympev.2010.04.002. PMID 20382247. Archived from the original (PDF) on 2011-09-27.
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