Liliales
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This article may be expanded with text translated from the corresponding article in Spanish. (December 2009) Click [show] for important translation instructions.
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| Liliales Temporal range: 120 Ma Early Cretaceous- Recent |
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| Lilium martagon (Martagon lily) | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| Order: | Liliales Perleb (1826)[1] |
| Families | |
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Alstroemeriaceae |
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Liliales (older name: Lilia) is an order of monocotyledonous flowering plants. This order of necessity includes the family Liliaceae, but both the family and the order have had a widely disputed history, with the circumscription varying greatly from one taxonomist to another. Well known plants from the order include Lilium (lily), tulip, the North American wildflower Trillium, and greenbrier.
The APG III system (2009) places this order in the clade monocots. In APG III, the family Luzuriagaceae is combined with the family Alstroemeriaceae and the family Petermanniaceae is recognized. APG III uses this circumscription:
- order Liliales
- family Alstroemeriaceae
- family Campynemataceae
- family Colchicaceae
- family Corsiaceae
- family Liliaceae
- family Melanthiaceae
- family Petermanniaceae
- family Philesiaceae
- family Ripogonaceae
- family Smilacaceae
Thus circumscribed, this order consists mostly of herbaceous plants, but lianas and shrubs occur. They are mostly perennial plants, with food storage organs such as corms or rhizomes. The family Corsiaceae is notable for being heterotrophs.
The order has worldwide distribution. The larger families (with more than 100 species) are roughly confined to the Northern Hemisphere, or are distributed worldwide, centering on the north. On the other hand, the smaller families (with up to 10 species) are confined to the Southern Hemisphere, or sometimes just to Australia or South America. The total number of species in the order is now about 1300.
As with any herbaceous group, the fossil record of the Liliales is rather scarce. There are several species from the Eocene, such as Petermanniopsis anglesaensis or Smilax, but their identification is not definite. Another known fossil is Ripogonum scandens from the Miocene. Due to the scarcity of data, it seems impossible to determine precisely the age and the initial distribution of the order. It is assumed that the Liliales originate from the Lower Cretaceous, over 100 million years ago. Fossil aquatic plants from the Cretaceous of northeastern Brazil and a new terrestrial species placed in the new genus Cratosmilax suggest that the first species have appeared around 120 million years ago when the continents formed Pangea, before dispersing as Asia, Africa and America.[2] The initial diversification to the current families took place between 82 and 48 million years ago.[3]
Contents
Description[edit]
The Liliales are characterised by the presence of tepal nectaries and extrorse anthers. This distinguishes them from the the septal nectaries and introrse anthers that are the features of most other monocots.[3]
Taxonomy[edit]
Phylogeny[edit]
According to the APWeb, the families of Liliaceae are related as follows:
| Liliales |
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Older classifications[edit]
The APG II system (2003) places this order in the clade monocots and uses this circumscription:
- order Liliales
- family Alstroemeriaceae
- family Campynemataceae
- family Colchicaceae
- family Corsiaceae
- family Liliaceae
- family Luzuriagaceae
- family Melanthiaceae
- family Philesiaceae
- family Ripogonaceae
- family Smilacaceae
The APG system (1998) also placed the order in the clade monocots, but with a slightly different circumscription (missing the family Corsiaceae):
- order Liliales
- family Alstroemeriaceae
- family Campynemataceae
- family Colchicaceae
- family Liliaceae
- family Luzuriagaceae
- family Melanthiaceae
- family Philesiaceae
- family Ripogonaceae [sic]
- family Smilacaceae
The Cronquist system (1981) placed the order in subclass Liliidae in the class Liliopsida [= monocotyledons] of division Magnoliophyta [= angiosperms]. It used a much wider circumscription (many of the plants here are assigned to Asparagales and Dioscoreales by APG II):
- order Liliales
- family Agavaceae
- family Aloaceae
- family Cyanastraceae
- family Dioscoreaceae
- family Haemodoraceae
- family Hanguanaceae
- family Iridaceae
- family Liliaceae
- family Philydraceae
- family Pontederiaceae
- family Smilacaceae
- family Stemonaceae
- family Taccaceae
- family Velloziaceae
- family Xanthorrhoeaceae
The Thorne system (1992) placed the order in superorder Lilianae in subclass Liliidae [= monocotyledons ] of class Magnoliopsida [= dicotyledons] and used this circumscription:
- order Liliales
- family Alstroemeriaceae
- family Campynemataceae
- family Colchicaceae
- family Iridaceae
- family Liliaceae
- family Melanthiaceae
- family Trilliaceae
The Dahlgren system placed the order in superorder Lilianae in subclass Liliidae [= monocotyledons] of class Magnoliopsida [= angiosperms] and used this circumscription:
- order Liliales
- family Alstroemeriaceae
- family Calochortaceae
- family Colchicaceae
- family Iridaceae
- family Liliaceae
- family Uvulariaceae
In the Engler system (1964 update) a similar order was named Liliiflorae, placed in the class Monocotyledoneae of the subdivision Angiospermae.
The Wettstein system, last revised in 1935, used names similar to those in the Engler system: the order was named Liliiflorae placed in the class Monocotyledones of the subdivision Angiospermae. In circumscription the order was fairly similar to that of Cronquist.
Earlier names for this order include the Coronarieae of the Bentham & Hooker system.
References[edit]
- ^ Angiosperm Phylogeny Group (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 (2): 105–121, doi:10.1111/j.1095-8339.2009.00996.x, retrieved 2010-12-10
- ^ Flaviana J. De Lima, Antônio A.F. Saraiva, Maria A.P. Da Silva, Renan A.M. Bantim, and Juliana M. Sayão (2014), "A new angiosperm from the Crato Formation (Araripe Basin, Brazil) and comments on the Early Cretaceous Monocotyledons" (PDF), Anais da Academia Brasileira de Ciências
- ^ a b Vinnersten & Bremer 2001.
Bibliography[edit]
- W. S. Judd, C. S. Campbell, E. A. Kellogg, P. F. Stevens, M. J. Donoghue (2002). Plant Systematics: A Phylogenetic Approach, 2nd edition. Sinauer Associates, Sunderland, Massachusetts. ISBN 0-87893-403-0.
- K. J. Perleb (1826). Lehrbuch der Naturgeschichte des Pflanzenreichs, 129. Magner, Freiburg im Breisgau.
- P. J. Rudall, K. L. Stobart, W.-P. Hong, J. G. Conran, C. A. Furness, G. C. Kite, M. W. Chase (2000) Consider the Lilies: Systematics of Liliales. In: Wilson K, Morrison DA, (eds.). Monocots: Systematics and Evolution. CSIRO, Melbourne. ISBN 0-643-06437-0.
- Wilson, K. L.; Morrison, D. A., eds. (2000). Monocots: Systematics and evolution (Proceedings of the Second International Conference on the Comparative Biology of the Monocotyledons, Sydney, Australia 1998). Collingwood, Australia: CSIRO. ISBN 0-643-06437-0. Retrieved 14 January 2014. Excerpts
- Vinnersten, A.; Bremer, K. (2001). "Age and biogeography of major clades in Liliales". American Journal of Botany 88 (9): 1695–1703. doi:10.2307/3558415. JSTOR 3558415. PMID 21669704. (Available online: [1])
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