Secunda Floria Zonara: Many of thedecorations involved greenery - swathes, garlands, wreaths, etc - being hung over doorwaysand windows, and ornamenting stairs. Ornaments in the trees included sun symbols, stars,and faces of the God Janus. Trees were not brought indoors (the Germans started thattradition), but decorated where they grew.
Food was also a primary decoration - gilded cakes in a variety of shapes were quitepopular, and children and birds vied for the privilege of denuding the trees of theirtreats. The commonest shapes were fertility symbols, suns and moons and stars, babyshapes, and herd animal shapes