Watson further brought out the striking fact that the west and east of Britain each had species peculiar to it; the former he characterized as Atlantic, the latter as Germanic. The Cornish heath (Erica vagans) and the maiden-hair fern (Adiantum CapillusVeneris) may serve as instances of the one, the man-orchis (Aceras anthropophora) and Reseda lutea of the other.
MAIDENHAIR, in botany, the common name for a fern, Adiantum Capillus-Veneris, characterized by the spreading hairlike branches of the frond, the ultimate pinnules of which are z to 1 in.
The genus Adiantum is a large one containing many handsome species both tropical and temperate, well known in greenhouse and hothouse cultivation.
Not unlike the runner, though growing in a very different way, are the bud-plants formed on the fronds of several kinds of ferns belonging to the genera Asplenium, Woodwardia, Polystichum, Lastrea, Adiantum, Cystopteris, &c. In some of these (Adiantum caudatusn, Polystichum lepidocaulon) the rachis of the frond is lengthened out much like the string of the strawberry runner, and bears a plant at its apex.
On account of the resemblance of the leaves to those of some species of Adiantum, the appellation maiden-hair tree has long been given to Ginkgo biloba.