Fern Kinds


Ferns are plants that reproduce by spores rather than by seeds and, therefore, they do not have flowers. They are vascular plants with xylem and phloem. There are about 12,000 living species.

Fern Cognitum


Psilotopsida Cognitum – Whisk Ferns
Equisetopsida Cognitum – Horsetails
Marattiopsida Cognitum
Polypodiospsida Cognitum – True Ferns
XXXVIIC. Last Updated: 20/12/2015
Todd Elder

Todd Elder

Todd Elder has a deep desire to understand and experience Creation. As a Baraminologist, his current research includes developing the Katagenos Species Concept, the Natanzera Classification System, and the Floral Formula Method of determining Plant Kinds. As an author and speaker, his books and seminar materials are designed to encourage a growing relationship with the Creator.
Todd Elder

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