Dryopteris pallida
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Dryopteridaceae
Genus: Dryopteris
Species:
D. pallida
Binomial name
Dryopteris pallida
(Bory) Maire & Petitm.[1]

Dryopteris pallida is a species of fern.

Description

Dryopteris pallida is a winter-green Dryopteris fern of small to moderate size with very pale broad chaffy scales on the long somewhat pale stem and leaves that are often rather a pallid green; glands may be present.

The fronds are two-fold divided (2-pinnate), with the final leaflets (pinnules) usually being obviously stalked and also conspicuously lobed (sometimes almost further dividing the leaflet to 3-pinnate). The frond divisions are not greatly asymmetric so that the first divisions (pinna) closest to the ground have a lower part somewhat similar to the upper and subdivisions similar to adjacent ones.

The fertile sori under the leaflets are round with an incompletely rounded covering (reniform or kidney-shaped indusium), and are arranged as two lines, one on each side of the leaflet axis.

Its habitat is alkaline to acidic, 0–3000 m, in woods, scrubs and slopes, typically avoiding dry ground.[2][3][4][5][6][7]

Subspecies and range

  • subsp. pallida - Albania, Algeria, Balearics, Corsica, Cyprus, Greece, Iran, Italy, Crete, Lebanon-Syria, Palestine, Sardinia, Sicily, Transcaucasus, Tunisia, Turkey, Yugoslavia.[8]
  • subsp. balearica (Litard.) Fraser-Jenk. - frond only to 25 cm with a deltate shape and stalk more than 50%[2] - Baleares.[9]
  • subsp. libanotica (Rosenst.) E.Nardi - Cyprus, Lebanon-Syria, Palestine, Turkey.[10]
  • subsp. raddeana (Fomin) E.Nardi - Iran, Transcaucasus.[11]

Resimli Türkiye Florası differs from Plants of the World in placing the Turkish plants as subsp. raddeana.

References

  1. ↑ Plants of the World Online (with map) (species)
  2. 1 2 Tutin. Flora Europaea.
  3. ↑ Adil Güner (ed.). Resimli Türkiye Florası, Cilt. 2 (Illustrated Flora of Turkey, vol. 2).
  4. ↑ Davis. Flora of Turkey and the East Aegean Islands, vol. 1.
  5. ↑ "Türkiye'de Yetişen Dryopteris Türleri Üzerinde Farmasötik Botanik Yönünden Araştırmalar" by Nevin Tanker, Maksut Coşkun
  6. ↑ "Ferns and Fern Allies of Iran".
  7. ↑ Arne Strid. Atlas of the Aegean Flora Part 1.
  8. ↑ Plants of the World Online (with map) (ssp pallida)
  9. ↑ Plants of the World Online (with map) (ssp balearica)
  10. ↑ Plants of the World Online (with map) (ssp libanotica)
  11. ↑ Plants of the World Online (with map) (ssp raddeana)


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