One way to identify ferns is by the shape, arrangement and location of their “sori” — small clusters of spore-producing structures found on the undersides ... the first pair of leaflets attach to the ...

Equisetum is such a plant, which arises from rhizome-like structures, with hollow erect stem and slender branches. Its surface will be rough due to silica deposition. The stem is beautifully ...

The Structure and Development of the Mosses and Ferns. By Douglas Houghton Campbell, Professor of Botany in the Leland Stanford Junior University. Pp. vi + 544. (London: Macmillan and Co., 1895.) ...

However, a group of Andean ferns evolved much more recently: their completely new form and structure (morphology) arose and diversified within the last 2 million years. This novel morphology seems ...

This study introduces a novel family of insecticidal proteins, designated as IPD113, found in ferns ... to leaves, stems and ears, compared to control plants. The crystal structure analysis ...

First of all, tree ferns are ferns, but they are not really trees. To be a tree, a plant must be woody (undergo secondary plant growth, which thickens stems and roots) and grow to a height of at ...

Fern allies are not true ferns but they share a vascular structure allowing water to travel from the roots and sugars up and down the stem much like a flowering plant. Like ferns, they also ...

The team's work focused on Ceratopteris, a fern species often used in botany studies, to reveal fundamental processes that regulate stem cell proliferation at both the cellular and molecular levels.

The native western sword fern, shown here surrounding the bird bath, can grow anywhere from 2 to 6 feet tall. It thrives in the moist, temperate climate of the Pacific Northwest and does well in a ...