Juncaceae

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Juncaceae

[‚jəŋ′kās·ē‚ē]
(botany)
A family of monocotyledonous plants in the order Juncales characterized by an inflorescence of diverse sorts, vascular bundles with abaxial phloem, and cells without silica bodies.

Juncaceae

 

(rush), a family of monocotyledonous plants including perennial and annual herbs and, less commonly, shrubs. The leaves have sheaths and linear or cylindrical blades; sometimes all the leaves are reduced to sheaths. The inconspicuous flowers are regular and usually bisexual; they are pollinated by the wind and gathered in capitate, fascicular, pa-nicled, or umbellate inflorescences. Rarely are the flowers solitary. The perianth is usually calycine and composed of six greenish or brownish segments. There are usually six stamens. The fruit is a capsule, surrounded by the perianth.

There are eight or nine genera, comprising approximately 400 species. The plants grow in temperate and cold regions and in high-mountain tropics, usually in moist and swampy places. The genera Juncus and Luzula are found in both hemispheres; both are represented in the USSR (about 100 species). The remaining genera are found only in the southern hemisphere.

REFERENCE

Takhtadzhian, A. L. Sistema i filogeniia tsvetkovykh rastenii. Moscow-Leningrad, 1966.

T. V. EGOROVA

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