Another very characteristic ornament is the Tudor flower. It is formed by a series of flat leaves placed upright against the stalk. It was much used in late buildings as a crest or ornamental finishing to cornices, etc., to which it gave an embattled appearance. Cornices and brackets were frequently ornamented with busts of winged angels called angel-brackets, and angel-corbels. The portcullis and the Tudor rose--both badges of the house of Tudor--also figure prominently among the ornaments of the period. The crockets for the most part partake of the squareness which pervades all the foliage of this style. _See page 64._ [Side note: Perpendicular Buttresses.] The buttresses are very similar to those preceding them in their plainer forms, but, in richer examples the faces are covered with panel work and are finished with square pinnacles sometimes set diagonally and terminated with a crocketed spire, or finished with an animal or other ornament. Parapets with square battlements are very common at this period, but they too are frequently panelled or pierced with tracery, or with trefoils or quatrefoils inserted in square, circular or triangular compartments. [Side note: Perpendicular Roofs.] The roofs of this period, both in ecclesiastical and secular buildings, are very magnificent, and have the whole of the framing exposed to view; many of them are of high pitch, the spaces between the timbers being filled with tracery, and the beams arched, moulded and ornamented in various ways; and frequently pendants, figures of angels, and other carvings are introduced. The flatter roofs are sometimes lined with boards and divided into panels by ribs, or have the timbers open, and all enriched with mouldings and carvings, as at Cirencester church, Gloucestershire. The gradual decline of the Gothic style is very evident in late Perpendicular churches, especially in those erected at the beginning of the XVIth century. The elements of Gothic architecture became much degraded and led to that mixture of features called the Debased Gothic in which every real principle of art and of beauty was lost. [Illustration: A Perpendicular Porch. S. Nicholas, King's Lynn. _Photograph Dexter & Son._] The chief characteristics, then, of the Perpendicular style are the vertical mullions, and the general flattening of arches, mouldings and carvings. Should there be no other guide, a Perpendicular church carries its style and period stamped upon its carvings. The plants represented are, almost without exception, the vine with or without grapes, and the oak with or without acorns. The leaves are generally full blown and crumpled. The earliest building showing the Perpendicular style is the beautiful little priory church of Edington, in Wilts, erected by William Edington, Bishop of Winchester. The same style, but more fully developed, is seen in the nave of Winchester Cathedral, at New College, Oxford, and at Winchester College.