Biology:Eustephieae

Eustephieae is a flowering plant tribe in the family Amaryllidaceae, subfamily Amaryllidoideae. It forms part of the Andean clade, one of two clades in The Americas.

Description

Vegetative characteristics

Eustephieae are bulbous plants with often long-necked bulbs and linear leaves.

Generative characteristics

The pedicellate, tubular flowers are borne on a solid scape.

Taxonomy

It was published by John Hutchinson in 1934 with Eustephia Cav. as the type genus.

Phylogeny

This tribe was resurrected from the Stenomesseae in 1995, by Meerow. The placement of Eustephieae within subfamily Amaryllidoideae is shown in the following cladogram, where this tribe is shown as a sister group to the remainder of the tetraploid Andean clade.

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

Subdivision

The tribe has four genera:

• Eustephia Cav.
• Chlidanthus Herb.
• Hieronymiella Pax
• Pyrolirion Herb.

Distribution

The Eustephieae form the southern limit of the Andean clade. They are found in Peru in the southern Andes, and the northern Andes of Argentina, Bolivia and Chile. This is distinct from the central Andean distribution of the remainder of the parent clade.

Bibliography

• Meerow, Alan. Towards a phylogeny of the Amaryllidaceae. pp. 169–179. , in (Rudall Cribb)
• 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)
• 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 French). 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 
• 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. 
• 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. 
• "Amaryllidaceae: A taxonomic tool for the Amaryllidaceae of the world". eMonocot. http://amaryllidaceae.e-monocot.org/. 

External links

Template:Amaryllidaceae Wikidata ☰ Q10492176 entry