Polystichum


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Related to Polystichum: Polystichum acrostichoides
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Polystichum

 

a genus of ferns of the family Aspidiaceae. They are terrestrial, rhizomatous plants, usually having stiff, leathery fronds. The sori (clusters of sporangia) are orbicular and, for the most part, have an indusium—a peltate covering. The approximately 175 species of Polystichum are widely distributed. Seven or eight species are found in the USSR, growing in forests and on rocks. Some species are grown as ornamentals in the open ground and in greenhouses. The plants are propa-gated from spores or rhizomes.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Related Family Members in Book: Nephrolepsis, Platycerium, Polystichum, and Rumohra
Ground vegetation was dominated by salal (Gaultheria shallon Pursh) and Oregon grape (Mahonia nervosa (Pursh) Nutt.) at the N-poor sites and by sword fern (Polystichum munitum (Kaulf.) Presl.) at the N-rich sites.
Ground flora included members of the Chasmanthium group as well as a rich assemblage of mesophytic plants including Florida maple (Acer barbatum Michx.), cross vine (Bignonia capreolata L.), Christmas fern (Polystichum acrostichoides (Michx.) Shott.) and Canada snakeroot (Sanicula canadensis L.) that were not found elsewhere.
Population structure and estimates of gene flow in the homosporous fern Polystichum munitum.
Understory vegetation is variable in composition and patchy in distribution; common species include salmonberry (Rubus spectabilis), vine maple (Acer circinatum), salal (Gaultheria shallon), Oregon grapes (Berberis spp.), huckleberries (Vaccinium spp.), and swordfern (Polystichum munitum).
Moore Polystichum cochleatum h -- (Klotzsch) Hieron.
Dominant understory plants included Evergreen Huckleberry (Vaccinium ovatum), Salal (Gaultheria shallon), Sword Fern (Polystichum munituin), Chain Fern (Woodivardia fimbriata), and Rubus spp.
T + Moore Elaphoglossum squarrosum T + Polystichum acrostichoides (Michx.) Schott T + Polystichum acrostichoides T + Polystichum muricatum (L.) Fee T + Polystichum ordinatum (Kunze) Liebm.
Don't panic if you sever one as it will probably regenerate, but do try to avoid doing dry shade, such as hart's tongue fern, Asplenium scolopendrium, Polystichum setiferum, the soft shield fern and the common polypody Polypode vulgare.
2010, entre otros), muestran que las especies del genero Blechnum constituyen una serie poliploide, como las que fueran descritas para Asplenium, Polystichum, Ophioglossum, Cystopteris, o el grupo Polypodium vulgare L.
Floristically these forests are characterized by the presence of Acer platanoides, Ilex aquifolium, Taxus baccata, Tilia platyphyllos, Hedera helix, Anemone nemorosa, Cardamine bulbifera, Galium odoratum and Geranium robertianum among others, as well as a significant coverage of ferns (Asplenium scolopendrium, Athyrium filix-femina, Polystichum ssp.).