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

Filmy fern

(Hymenophyllum holochilum)

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Description

Hymenophyllum holochilum belongs to the subgenus HymenophyllumThis species has the following characteristics: its rhizome is long and filiform and partly covered with hair; the fronds, six to fifteen centimeters long, of which two to five for the petiole, one to three centimeters wide, have an oblong or lanceolate-oblong blade divided twice; the segments are simple or sometimes dividing towards the apex; The sori, solitary, are borne by the extremity of a segment, mainly at the terminal part of the limb; the indusie is formed two oblong lips, whole and regular; this characteristic is at the origin of the specific epithetclusters of sporangia are completely covered by industry.

Taxonomic tree:

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