Polystichum


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Related to Polystichum: Polystichum acrostichoides

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.

References in periodicals archive ?
Related Family Members in Book: Adiantum, Nephrolepsis, Platyactium, Polystichum, and Platycerium
However, some of our native evergreen ferns will do very well in dry shade, such as hart's tongue fern, Asplenium scolopendrium, Polystichum setiferum, the soft shield fern and the common polypody Polypode vulgare.
Adiantum caudatum, Adiantum venustum, Aster olliusculus, Berberis lycium, Bidens pilosa, Cedrus deodara, Duchesnea indica, Fragaria vesca, Geranium nepalense, Girardinia diversifolia, Hedera helix, Nepeta erecta, Oxalis corniculata, Pinus wallichi-ana, Polystichum squarrosum, Pteris cretica, Pteris sp.
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.
Fine, upright clumps surround it with some of the lower–growing evergreen ferns – Polystichum setiferum, with finely cut lacy fronds, or Polypodium vulgare, for Yellow–flowered forms of helleborus x hybridus glow more brightly next to vivid blue pulmonarias.
Polystichum aculeatum: modeling relationships to the
Bernh, Polystichum mohrioides (Bory ex D'Urv) Presl.
Board 17 SEASONAL VARIATION IN EPIPHYTIC MICROFLORA OF POLYSTICHUM ACROSTICHOIDES.
Pinnae with anterior basal lobe, margins toothed; fertile pinnae at tips of leaves (apical); son round: Polystichum