Primulales
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Primulales
(′prim·yə′lā·lēz)
(botany) An order of dicotyledonous plants in the subclass Dilleniidae distinguished by sympetalous flowers, stamens located opposite the corolla lobes, and a compound ovary with a single style.
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An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Dilleniidae of the class Magnoliopsida (dicotyledons). The order consists of three families: the Myrsinaceae, with about 1000 species; the Primulaceae, with about 1000 species; and the Theophrastaceae, with a little more than 100 species. These are plants with sympetalous flowers; that is, the petals are fused by their margins to form a corolla with a basal tube and terminal lobes. The functional stamens are opposite the corolla lobes, and there is a compound ovary that has a single style and two to numerous ovules which usually have two integuments and are on a free-central or basal placenta. The Myrsinaceae and Theophrastaceae are chiefly tropical and subtropical woody plants, but the Primulaceae are mostly herbaceous and are best developed in north temperate regions. Primrose (Primula) and cyclamen are familiar members of the Primulaceae. See also Dilleniidae; Magnoliopsida; Plant kingdom.
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Primulales
IN BRIEF: n. - A dicotyledonous family of a particular order with a regular flower.
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Primulales
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Primulales is a botanical name of an order of flowering plants. This name was used in several systems with little variation in circumscription (see Bentham & Hooker, Engler and Wettstein system). In the 1981 version of the Cronquist system it was an order placed in subclass Dilleniidae with the following circumscription:
- order Primulales
- family Myrsinaceae
- family Primulaceae
- family Theophrastaceae
The APG II system, used here, includes all the plants involved in the (expanded) order Ericales.
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Mentioned in
Primulaceae
(botany)
Theophrastaceae
(botany)
Myrsinaceae
(botany)
Dilleniidae
(magnoliophyta)
primrose
(plant, herb)
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