Спаржецветные - Asparagales 12/25/04—9/13/24

Asparagales (asparagoid lilies) is an order of plants in modern classification systems such as the Angiosperm Phylogeny Group (APG) and the Angiosperm Phylogeny Web. The order takes its name from the type family Asparagaceae and is placed in the monocots amongst the lilioid monocots. The order has only recently been recognized in classification systems. It was first put forward by Huber in 1977 and later taken up in the Dahlgren system of 1985 and then the APG in 1998, 2003 and 2009. Before this, many of its families were assigned to the old order Liliales, a very large order containing almost all monocots with colourful tepals and lacking starch in their endosperm. DNA sequence analysis indicated that many of the taxa previously included in Liliales should actually be redistributed over three orders, Liliales, Asparagales and Dioscoreales. The boundaries of the Asparagales and of its families have undergone a series of changes in recent years; future research may lead to further changes and ultimately greater stability. In the APG circumscription, Asparagales is the largest order of monocots with 14 families, 1,122 genera, and about 36,000 species. The order is clearly circumscribed on the basis of molecular phylogenetics, but is difficult to define morphologically, since its members are structurally diverse. Most species of Asparagales are herbaceous perennials, although some are climbers and some are tree-like. The order also contains many geophytes (bulbs, corms and various kinds of tuber). According to telomere sequence, at least two evolutionary switch-points happened within the order. Basal sequence is formed by TTTAGGG like in majority of higher plants. Basal motif was changed to vertebrate-like TTAGGG and finally the most divergent motif CTCGGTTATGGG appears in Allium. One of the defining characteristics (synapomorphies) of the order is the presence of phytomelanin, a black pigment present in the seed coat, creating a dark crust. Phytomelanin is found in most families of the Asparagales (although not in Orchidaceae, thought to be a sister to the rest of the group).
Агапантовые - Agapanthaceae Agapanthoideae is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. It is one of...

Агапантовые - Agapanthaceae

Agapanthoideae is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. It is one of three subfamilies of Amaryllidaceae. It…

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Амариллисовые - Amaryllidaceae Amaryllidoideae (Amaryllidaceae s.s., amaryllids) is a subfamily of monocot flowering plants in the family...

Амариллисовые - Amaryllidaceae

Amaryllidoideae (Amaryllidaceae s.s., amaryllids) is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. The most recent…

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Асфоделовые - Asphodelaceae Asphodeloideae is a subfamily of the monocot family Asphodelaceae in the order Asparagales. It has previously been...

Асфоделовые - Asphodelaceae

Asphodeloideae is a subfamily of the monocot family Asphodelaceae in the order Asparagales. It has previously been treated as a separate family, Asphodelaceae…

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Касатиковые - Iridaceae Iridaceae is a family of plants in order Asparagales, taking its name from the irises, meaning rainbow, referring to its...

Касатиковые - Iridaceae

Iridaceae is a family of plants in order Asparagales, taking its name from the irises, meaning rainbow, referring to its many colours. There are 66 accepted…

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Орхидные - Orchidaceae The Orchidaceae are a diverse and widespread family of flowering plants, with blooms that are often colourful and...

Орхидные - Orchidaceae

The Orchidaceae are a diverse and widespread family of flowering plants, with blooms that are often colourful and fragrant, commonly known as the orchid…

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Спаржевые - Asparagaceae Asparagaceae is a family of flowering plants, placed in the order Asparagales of the monocots. In earlier classification...

Спаржевые - Asparagaceae

Asparagaceae is a family of flowering plants, placed in the order Asparagales of the monocots.
In earlier classification systems, the species involved were…

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