Luzuriageae Explained

Luzuriageae is a tribe of monocotyledonous plants belonging to the family Alstroemeriaceae. It consists of very few species of perennial plants native to South America (Luzuriaga) and Australia and New Zealand (Drymophila). They are climbing plants with more or less woody stems and can be recognised by their distichous leaves which are turned "upside down" at the base, and their polysymmetrical white flowers with plain-coloured tepals and a succulent ovary.

In modern classification systems such as the APG III classification system (2009^[1]) and APWeb (2001 onwards^[2]), this clade is placed as a nested tribe within the wider Alstroemeriaceae. Previously (as in APG II 2003^[3]), the group was placed in its own family Luzuriagaceae.

Phylogeny

Alstroemerieae is related to Luzuriagaeae. The two tribes share vegetative characters such as being climbing plants with twisted leaves so that the upper surface during development becomes lower at maturity, although the ovary is succulent in Alstroemeriaeae. Both tribes are related to each other (Rudall et al. 2000^[4]).

Taxonomy

The family was not recognized by APG III (2009^[5]), which places its genera in the larger Alstroemeriaeae, given the morphological and phylogenetic similarities between the two families. The family had been recognised by APG II (2003). APWeb (2001 onwards) initially considered it separate but then decided to follow in the footsteps of APG III.

The tribe comprises two genera and six species. The genera, together with their valid publication, distribution and number of species are listed below:^[6]

• Drymophila R.Br., Prodr.: 292 (1810). eastern and south-eastern Australia. Includes two species.
• Luzuriaga Ruiz & Pav., Fl. Peruv. 3: 65 (1802), nom. cons. New Zealand, south-central and southern Chile, southern Argentina to the Falkland Islands. Includes four species.

Bibliography

• Web site: Stevens . P. F. . 2001 . Luzuriagaceae . January 15, 2009 . Angiosperm Phylogeny Website . EN . (Version 9, June, 2008, and updated since then) .

External links

• Web site: Watson . L. . Dallwitz . M. J. . Luzuriagaceae . January 15, 2009 . The families of flowering plants: descriptions, illustrations, identification, and information retrieval. . EN.

Notes and References

1. Elspeth Haston . James E. Richardson . Peter F. Stevens . Mark W. Chase . David J. Harris . 2009 . An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. . PDF . Botanical Journal of the Linnean Society . 161 . 105–121 . 10.1111/j.1095-8339.2009.01000.x . https://wayback.archive-it.org/all/20170525104318/http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2009.00996.x/abstract . May 25, 2017. free .
2. Web site: Stevens . P. F. . 2001 . Angiosperm Phylogeny Website (Version 9, June 9, 2008, and updated since then) . January 12, 2009 . EN.
3. APG II . 2003 . An Update of the Angiosperm Phylogeny Group Classification for the orders and families of flowering plants: APG II. . PDF . Botanical Journal of the Linnean Society . 141 . 4 . 399–436 . 10.1046/j.1095-8339.2003.t01-1-00158.x . January 12, 2009.
4. Book: Rudall . P. . Monocots: Systematics and evolution. . Stobart, K. L., Hong, . -P., Conran, J. G., Furness, C. A., Kite, G. C., and Chase, M. W. . 2000 . Wilson, K. L. and Morrison, D. A. . CSIRO Publ. . Collingwood, Australia . 347–359 . Consider the lilies: systematics of Liliales..
5. Elspeth Haston . James E. Richardson . Peter F. Stevens . Mark W. Chase . David J. Harris . 2009 . An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. . Botanical Journal of the Linnean Society . 161 . 105–121 . 10.1111/j.1095-8339.2009.01000.x . free .
6. Web site: Royal Botanic Gardens, Kew: World Checklist Series . March 15, 2010 . EN.