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Верескоцветные (Ericales) 4/28/07—7/6/20

The Ericales are a large and diverse order of dicotyledons, including, for example, tea, persimmon, blueberry, Brazil nut, and azalea. The order includes trees, bushes, lianas, and herbaceous plants. Together with ordinary autophytic plants, the Ericales include chlorophyll-deficient mycoheterotrophic plants (e.g., Sarcodes sanguinea) and carnivorous plants (e.g., genus Sarracenia).

Many species have five petals, often grown together. Fusion of the petals as a trait was traditionally used to place the order in the subclass Sympetalae.

Mycorrhiza is an interesting property, frequently associated with the Ericales. Indeed, symbiosis with root fungi is quite common among the order representatives, and three kinds of it can be found exclusively among Ericales (namely, ericoid, arbutoid and monotropoid mycorrhiza). In addition, some families among the order are notable for their exceptional ability to accumulate aluminum.

Ericales are a cosmopolitan order. Areas of distribution of families vary largely - while some are restricted to tropics, others exist mainly in Arctic or temperate regions. The entire order contains over 8,000 species, of which the Ericaceae account for 2,000-4,000 species (by various estimates).
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