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

Cyclodium heterodon

(Cyclodium heterodon)

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Description

Many ferns of this genus have stout, slowly creeping rootstocks that form a crown, with a vase-like ring of-evergreen-fronds-30 to 200 centimetres (10 to 80-in) long. The-sori-are round, with a circular indusium. The stipes have prominent scales. The genus differs from the well-known and allied fern genus-Dryopteris-in the indusium being circular, not reniform, and in having the leaf blades with asymmetrical segments-one side of the segment is much longer than the other at the base.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Polypodiopsida
Order:Polypodiales
Family:Dryopteridaceae
Genus:Cyclodium
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