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Vascular Plants - a quick review - page 11 / 12

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Phylum Polypodiophyta

Osmundaceae - royal fern family

3 species of Osmunda in Wisconsin; easily separated by position of fertile portions

All wide-spread & Bot 401 exam plant!

Osmunda cinnamomea Cinnamon fern

Osmunda claytoniana Interrupted fern

Osmunda regalis Royal fern

Phylum Polypodiophyta

Pteridaceae - maidenhair fern family 4 genera in Wisconsin

Sori that lack indusia or are protected by a reflexed or revolute margins

Distinctively compound frond with dark purple stipe and rachis

Adiatum pedatum Maidenhair fern

Phylum Polypodiophyta

Dennstaedtiaceae - bracken family

2 genera in Wisconsin. Includes one of the most widespread of all vascular plants.

Clonal with rhizome; large compound leaves. Ubiquitous in Wisconsin.

Marginal sori with no indusia but with revolute (rolled over) leaf edge protecting sori.

Pteridium aquilinum Bracken fern

Phylum Polypodiophyta

Aspleniaceae - spleenwort family

1 genus in Wisconsin. Defined by linear or kidney shaped sori.

Asplenium viride (A. trichomanes-ramosum) Green spleenwort

Asplenium platyneuron Ebony spleenwort

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