Two main shapes were adopted for the apex - the acorn and the hogsback.
THYROSTRACA, an order of Crustacea, comprising barnacles, acorn shells and some allied degenerate parasites.
Monoecious, and bearing their male flowers in catkins, they are readily distinguished from the rest of the catkin-bearing trees by their peculiar fruit, an acorn or nut, enclosed at the base in a woody cup, formed by the consolidation of numerous involucral bracts developed beneath the fertile flower, simultaneously with a cup-like expansion of the thalamus, to which the bracteal scales are more or less adherent.
The valonia of commerce, one of the richest of tanning materials, is the acorn of Q.
- 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.
The growth of the oak is slow, though it varies greatly in different trees; Loudon states that an oak, raised from the acorn in a garden at Sheffield Place, Sussex, became in seventy years 12 ft.
The present Palazzo Comunale, a Renaissance edifice, contains a fine museum, chiefly remarkable for the contents of prehistoric tombs found in the district (including good bronze fibulae, necklaces, amulets, &c., often decorated with amber), and a large collection of acorn-shaped lead missiles (glandes) used by slingers, belonging to the time of the siege of Asculum during the Social War (89 B.C.).
Its acorn-fed swine are celebrated throughout Spain for their hams and bacon, and large herds of sheep and goats thrive where the pasture is too meagre for cattle.
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.
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.
In 1856 he commissioned the "Acorn" brig for the China station, and arrived in time to take part in the destruction of the junks in Fatshan creek on the 1st of June 1857, and in the capture of Canton in the following December, for which, in February 1858, he received a post-captain's commission.
Valonia, a material largely used by tanners, is the pericarp of an acorn obtained in the neighbouring oakwoods, and derives its name from Valona.
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.
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."
The earlier English spoon-handles terminate in an acorn, plain knob or a diamond; at the end of the 16th century the baluster and seal ending becomes common, the bowl being "fig-shaped."