Psilotaceae

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Psilotaceae

plant family

Also known as: whisk fern family

Learn about this topic in these articles:

annotated classification

In fern: Annotated classification
ferns) Family Psilotaceae Plants lacking true roots, stems dichotomously branched, protostelic (the stele lacking pith and leaf gaps); leaves reduced to minute scalelike outgrowths (enations) without veins, or small, flattened, and undivided, with a single midvein (microphylls), not developing through circinate vernation; sporangia eusporangiate in fused clusters…
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