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Pteridophyta (ferns)

examples of ferns, fern fronds, and rhizomes

more ferns

circinate vernation; 'fiddle heads' with the one on right an example of a bipinnately compound leaf found in a tree fern

Regnellidium: aquatic fern.

(above) Polypodium: frond on left with mature sori; frond on right with immature sori.

sorus (sori) on underside of sporophylls with two on left showing an indusium; one on right does not have an indusium.

Left: fern frond with petiole originating from rhizome (horizontal, underground stem); rhizome covered with hairs.
Right: cross section through rhizome showing xylem, phloem, fibers, parenchyma cells.

go to: botany 105 page, word lists for -vascular plants, fungi, algae, bryophytes, pteridophytes, ferns, gymnosperms, angiosperms

circinate vernation; 'fiddle heads' with the one on right an example of a bipinnately compound leaf found in a tree fern
		Regnellidium: aquatic fern.
(above) Polypodium: frond on left with mature sori; frond on right with immature sori.
		sorus (sori) on underside of sporophylls with two on left showing an indusium; one on right does not have an indusium.
	Left: fern frond with petiole originating from rhizome (horizontal, underground stem); rhizome covered with hairs. Right: cross section through rhizome showing xylem, phloem, fibers, parenchyma cells.