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An attractive chart displaying all families of living ferns. Familiar fern names included. Uses the latest molecular (genetic) phylogenies. Fine-structure of relationships between families depicted. Available for on-line viewing or as a poster.
Traditionally, three discrete groups have been denominated ferns: two groups of eusporangiate ferns, the families Ophioglossaceae (adder's tongues, moonworts, and grape ferns) and Marattiaceae; and the leptosporangiate ferns.
19 Ιουν 2008 · The most complete and commonly used classifications, some intended primarily as herbarium (filing) schemes, are summarized in Table 16.1, and include: Christensen (1938), Copeland (1947), Holttum...
DIY fern classification uses fern specimens or image cards to group fern species according to their physical structures – rhizomes, fronds and sporangia.
This chart depicts a phylogeny of all living ferns. The disks. PSILOTALES OSMUNDALES represent families of ferns. Groups of related families are indicated by a hierarchy of regions. Some of these groups are named. Insets below describe the information associated. LEPTOSPORANGIATE FERNS.
The chart depicts a recently developed phylogeny of all living ferns. The disks represent families of ferns. Groups of related families are indicated by a hierarchy of regions and some of these groups are named.
19 Σεπ 2024 · Fern, class of several thousand species of nonflowering vascular plants that reproduce by spores. Ferns have true roots, stems, and complex leaves and constitute an ancient division of plants. Learn about their physical characteristics, life cycle, genetics, evolutionary history, and classification.
