Parts of a fern leaf. The midrib is the main axis of the blade, and the tip of the frond is its apex. The blade may be variously divided, into segments called pinnae; single leaflets are pinna. Pinna may be further divided, the smallest segments are pinnules.

The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers.

Ferns come in a variety of shapes and sizes and this interactive explores the diversity of form in New Zealand ferns. The fern body consists of 3 major parts – the rhizome, the fronds and the sporangia.

2010年9月24日 · Dr Patrick Brownsey from Te Papa shows us the 3 major parts of a fern: the rhizome (the underground stem), the leafy frond and the sporangia (the reproductive structure).

Ferns have 3 major parts – the rhizome, the fronds and the reproductive structures called sporangia. The characteristics of each of these 3 parts of the fern plant are used for classification and identification. The rhizome is the stem of the fern plant. It comes in 3 basic forms:

Instead, the leaves arise directly from an underground stem (rhizome) or a very short vertical stem at or near the soil surface. Therefore, fern stems are often very inconspicuous and the portions of ferns most often noticed are the leaves. Each fern leaf is called a frond, and each fern plant may have from one to many fronds.

Fern Parts (Frond, Segment/Pinna, Midrib and Spores/) Fern leaves are called fronds. The frond is made up of segments connecting to a midrib. Wood Fern – drawing © John Muir Laws Each segments can be composed of many leaflets, as shown above. This fern above is considered twice divided – once at the midrib, and again along each segment.

Learn about the parts of a fern diagram, including the main components and their functions. Understand how these diagrams are used to illustrate fern reproduction and growth.

Parts of a Fern From: Ferns of the Coastal Plain: Their Lore, Legends and Uses, by Lin Dunbar. blade stipe sori lobes subleaflet ( pinnule) scales indusium sporangium (contains spores) frond rachis leaflet pinna) fiddlehead (crozier) rhizome roots

The correct botanical names of the parts of ferns. The arrangement of rhizomes and sori in different species of ferns.