Pteridophytes (Spore Producing Plants: Ferns and More) • Earth.com

Appalachian Bristle Fern

(Vandenboschia boschiana)

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Description

Trichomanes boschianum, the Appalachian bristle fern or Appalachian filmy fern, is a small delicate perennial leptosporangiate fern which forms colonies with long, black creeping rhizomes. The evergreen fronds are bipinnatifid, deeply and irregularly dissected, about 4 to 20 cm long, 1 to 4 cm across with winged stipes 1 to 7 cm long and light green in colour. The common name derives from the leaves which are very thin, only a single cell thick, missing an epidermis and translucent, giving the appearance of a wet film.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Pteridophyta
Class: Polypodiopsida
Order:Hymenophyllales
Family:Hymenophyllaceae
Genus:Vandenboschia
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