Biology:Eucharideae

Short description: Tribe of flowering plants

Eucharideae
Urceolina candida
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Amaryllidaceae
Subfamily:	Amaryllidoideae
Tribe:	Eucharideae Hutch.
Type genus
Eucharis (now a synonym of Urceolina) Planch. & Linden
Genera
See text
Synonyms
Euchareae Traub

Eucharideae is a tribe of plants within the family Amaryllidaceae. It was augmented in 2000 by Meerow et al. following a molecular phylogenetic study that revealed that many elements of the tribe Stenomesseae segregated with it, rather than separately, and were subsequently submerged in it (although there was an initial proposal to rename this clade Stenomesseae). Further revisions were made in 2020, when three genera were merged. It forms one of the tribes of the Andean subclade of the American clade of the subfamily.

Taxonomy

In Traub's 1963 monograph on the Amaryllidaceae, he conceived of a tribe Euchareae based on the type genus, Eucharis and constituted from six genera in total. In 1996, the Müller-Doblies deemed this to be polyphyletic, and redistributed the genera over three separate tribes, retaining Eucharideae as one of those tribes, but divided into two subtribes, Eucharidinae and Hymenocallidinae with a total of seven genera. In 1998, Meerow and Snijman considered these separate tribes, retaining only four genera in their Eucharideae. In 2000, the tribe was then considerably reconstituted following a deconstruction of tribe Stenomesseae based on molecular phylogenetics, resulting in seven genera (Plagiolirion was not included). However, relationships were not fully resolved.

Phylogeny

The placement of Eucharideae within subfamily Amaryllidoideae is shown in the following cladogram:

Cladogram: Tribes of subfamily Amaryllidoideae

Subfamily Amaryllidoideae Africa  Tribe Amaryllideae       Africa  Tribe Cyrtantheae     Africa  Tribe Haemantheae   Australasia Tribe Calostemmateae         Eurasian clade Asia Tribe Lycorideae   Mediterranean   Tribe Galantheae       Tribe Pancratieae     Tribe Narcisseae         American clade Hippeastroid clade   Tribe Griffineae     Tribe Hippeastreae     Andean clade     Tribe Eustephieae         Tribe Eucharideae/Stenomesseae         Tribe Clinantheae     Tribe Hymenocallideae

A 2020 molecular phylogenetic study showed that genera accepted in 2000 required further revision. A summary cladogram from the study combined Eucharis, Caliphruria and Urceolina in a single clade, as well as showing that two species were wrongly placed.

Eucharideae	Rauhia       Plagiolirion (Plagiolirion horsmannii)         Phaedranassa     Eucrosia         Stenomesson (including Caliphruria korsakoffii)     Urceolina (including Eucharis, Caliphruria, Eucrosia dodsonii)

Genera

Genera accepted in the 2020 study are:

• Eucrosia Ker Gawl.
• Phaedranassa Herb.
• Plagiolirion Baker
• Rauhia Traub
• Stenomesson Herb.
• Urceolina Rchb. (including Eucharis and Caliphruria)

Bibliography

• Traub, H.P. (1963). Genera of the Amaryllidaceae. La Jolla, California: American Plant Life Society. http://babel.hathitrust.org/cgi/pt?id=mdp.39015006929270;view=1up;seq=3. 
• Meerow, Alan. Towards a phylogeny of the Amaryllidaceae. pp. 169–179.  In (Rudall Cribb)
• Rudall, P.J.; Cribb, P.J.; Cutler, D.F. et al., eds (1995). Monocotyledons: systematics and evolution (Proceedings of the International Symposium on Monocotyledons: Systematics and Evolution, Kew 1993). Kew: Royal Botanic Gardens. ISBN 978-0-947643-85-0. http://www.press.uchicago.edu/ucp/books/book/distributed/M/bo9856357.html. Retrieved 14 January 2014. 
• Müller-Doblies, U.; Müller-Doblies, D. (1996). "Tribes and subtribes and some species combinations in Amaryllidaceae J St Hil R Dahlgren & al. 1985". Feddes Repertorium 107 (5–6): S.c.1–S.c.9. 
• Meerow, AW; Snijman, DA (1998). Flowering Plants · Monocotyledons. pp. 83–110. doi:10.1007/978-3-662-03533-7_11. ISBN 978-3-642-08377-8. , in (Kubitzki 1998). (additional excerpts)
• Kubitzki, K., ed (1998). The families and genera of vascular plants. Vol.3. Berlin, Germany: Springer-Verlag. ISBN 978-3-540-64060-8. https://books.google.com/books?id=FyPVYzL76sMC. Retrieved 14 January 2014. 
• Meerow, A.W.; Fay, M.F.; Guy, C.L.; Li, Q.-B.; Zaman, F.Q.; Chase, M.W. (1999). "Systematics of Amaryllidaceae based on cladistic analysis of plastid rbcL and trnL-F sequence data". Am. J. Bot. 86 (9): 1325–1345. doi:10.2307/2656780. PMID 10487820. 
• Meerow, A.W.; Guy, C.L.; Li, Q.-B.; Yang, S.-L. (2000). "Phylogeny of the American Amaryllidaceae Based on nrDNA ITS Sequences". Systematic Botany 25 (4): 708–726. doi:10.2307/2666729. http://www.bulbsociety.org/meerow/Meerow%20et%20al-American.pdf. Retrieved 25 January 2015. 
• Meerow, Alan W.; Snijman, Deirdre A. (2006). "The never-ending story: multigene approaches to the phylogeny of Amaryllidaceae". Aliso 22: 355–366. doi:10.5642/aliso.20062201.29. http://naldc-legacy.nal.usda.gov/naldc/download.xhtml?id=2425&content=PDF. Retrieved 25 January 2015. 
• Vigneron, Pascal (2008). "Amaryllidaceae" (in fr). http://www.amaryllidaceae.org//index.htm. 
• Stevens, P.F. (2001–2012), Angiosperm Phylogeny Website: Amaryllidoideae, http://www.mobot.org/mobot/research/apweb/orders/asparagalesweb.htm#Amaryllidaceae 
• "Amaryllidaceae: A taxonomic tool for the Amaryllidaceae of the world". eMonocot. http://amaryllidaceae.e-monocot.org/. 
• Meerow, Alan W.; Gardner, Elliot M.; Nakamura, Kyoko (2020). "Phylogenomics of the Andean Tetraploid Clade of the American Amaryllidaceae (Subfamily Amaryllidoideae): Unlocking a Polyploid Generic Radiation Abetted by Continental Geodynamics". Frontiers in Plant Science 11: 582422. doi:10.3389/fpls.2020.582422. ISSN 1664-462X. PMID 33250911. 

Wikidata ☰ Q10489715 entry