The vernacular name barnacle, traceable to the fable of pedunculate cirripedes hatching out into bernicle geese, has also been transferred to the sessile cirripedes, which are popularly known as acorn barnacles.
- The " Acorn Club " has recently published a list of books printed in Connecticut between 1709 and 1800 (Hartford, 1904), and Alexander Johnston's Connecticut (Boston, 1887) contains a bibliography of Connecticut's history up to 1886.
A tree close to the house still bears the name of Charles's oak, but tradition goes no further than to assert that it grew from an acorn of the original tree.
A bitter principle to which the name of quercin has been applied by Gerber, its discoverer, has also been detected in the acorn of the common oak; the nutritive portion seems chiefly a form of starch.
Valonia, a material largely used by tanners, is the pericarp of an acorn obtained in the neighbouring oakwoods, and derives its name from Valona.
The moss-like covering of the "bedeguars" of the wild rose, the galls of a Cynipid, Rhodites rosae, represents leaves which have been developed with scarcely any parenchyma between their fibro-vascular bundles; and the " artichoke-galls " or " oak-strobile," produced by Aphilothrix L., which insect arrests the development of the acorn, consists of a cupule to which more or less modified leaf-scales are attached, with a peduncular, oviform, inner ga11.4 E.
Newman held the view that many oak-galls are pseudobalani or false acorns: " to produce an acorn has been the intention of the oak, but the gall-fly has frustrated the attempt."