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The leaves of <i>Adiantum capillus-veneris</i> are six to twenty inches long and three to each inches wide. The leaflets are nearly a half inch wide and are irregularly lobed.

Pinna of Adiantum Capillus-Veneris

The leaves of Adiantum capillus-veneris are six to twenty inches long and three to each inches wide.…

The leaves of <i>Adiantum continuum</i> are twelve to eighteen inches long and grow on stout, black stalks. This fern is found from Mexico to Brazil.

Pinna of Adiantum Concinnum

The leaves of Adiantum continuum are twelve to eighteen inches long and grow on stout, black stalks.…

The leaflets of the <i>Adiantum cuneatum</i> fern are numerous and wedge shaped at the base. There are three to five sori on each segment.

Adiantum Cuneatum

The leaflets of the Adiantum cuneatum fern are numerous and wedge shaped at the base. There are three…

The leaves of adiantum farleyense often reach between fifteen and twenty four inches in length. The leaflets are wedge shaped at the base with curved sides.

Adiantum Farleyense

The leaves of adiantum farleyense often reach between fifteen and twenty four inches in length. The…

"Fern leaves, showing various degrees of subdivision or branching of the blade. A, Phyllitis; B, Polypodium; C, Pteris; D, Adiantum." -Gager, 1916

Fern Leaves

"Fern leaves, showing various degrees of subdivision or branching of the blade. A, Phyllitis; B, Polypodium;…

The maidenhair fern or Adiantum.

Maidenhair Fern

The maidenhair fern or Adiantum.

Ginkgo also known as the Maidenhair Tree after Adiantum, is a unique species of tree with no close living relatives. The ginkgo is classified in its own division, the Ginkgophyta, comprising the single class Ginkgoopsida, order Ginkgoales, family Ginkgoaceae, genus Ginkgo and is the only extant species within this group. It is one of the best-known examples of a living fossil, because Ginkgoales other than G. biloba are not known from the fossil record after the Pliocene.

Ginkgo

Ginkgo also known as the Maidenhair Tree after Adiantum, is a unique species of tree with no close living…