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Types of Leaves

Conifer Leaves are Typically Needle- or awl-Shaped or Scale-Like
Conifer Leaves are Typically Needle- or awl-Shaped or Scale-Like

TREES NEEDLE-LIKE OR SCALE-LIKE LEAVES SPRUCES: NEEDLES ATTACHED SINGLY, USUALLY STIFF, 4-SIDED AND POINTED NORWAY SPRUCE Picea abies Large cones 10-15 cm. long. Needles dark ...

source: ray-a.com
image: tlehcs.com
Ferns Have Fronds
Ferns Have Fronds

A frond is a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns are referred to as fronds and some botanists restrict the term to this group. Other botanists allow the term frond to also apply to the large leaves of cycads and palms (Arecaceae).

Lycophytes Have Microphyll Leaves
Lycophytes Have Microphyll Leaves

...or may be of different lengths. The leaves are generally small, although they sometimes achieved a length of one metre (three feet) in the gigantic Lepidodendron. Generally each leaf, or microphyll, is narrow and has an unbranched midvein, in contrast to the leaves of the ferns and seed plants, which generally have branched venation.

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