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.
Taxonomy
Arachnothryx was named by Jules Émile Planchon in 1849. This generic name is derived from Ancient Greek: arachne or arachnos, "a spider", and thrix or trichos, "hair".
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.
↑ Arachnothryx In: International Plant Names Index. (see External links below).
↑ Jules Émile Planchon. 1849. Flore des Serres et des Jardins de l'Europe 5:442 and illustration. (see External links below).
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↑ 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.
