Psilotophyta 

General features of the fern allies

Common name

Whisk ferns

Synonyms

Psilophyta

Sporophyte growth habit

Stems

Gametophyte growth habit

parasitic branching thalli

Stele

Protostele

Undulipodia (“flagella”)

Two or more whiplash

Sexual reproduction

Homosporous

Representative genera

Psilotum, Tmesipteris

Recognized by

No leaves or roots; dichotomous branching; synangia

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