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The base of the column, torus, displays a concave molding called a scotia. This type of base was not present in the Greek Doric architecture, but are present throughout Ionic and Corinthian columns. The column is fluted. The Erechtheum, or Erechtheion is an ancient Greek temple on the north side of the Acropolis in Athens, Greece. a. sotia.

The Base of an Ionic Column at the Erechtheum

The base of the column, torus, displays a concave molding called a scotia. This type of base was not…

"Spira, the base of a column. in the Tuscan and the Roman Doric the base consisted of a single torus, sometimes surmounted by an astragal. In the Ionic and Attic it commonly consisted of two tori, divided by a scotia, and in the Corinthian of two tori divided by two scotiae. The upper torus was often fluted, and surmounted by an astragal, as in the left-hand figure of the following wood-cut, which shows the form of the base in the Ionic or Attic temple of Panops on the Ilissus. The right-hand figure in the same wood-cut shows the corresponding part in the temple of Minerva Polias at Athens. In this the upper torus is wrought with a platted ornament, perhaps designed to represent a robe or cable." — Smith, 1873

Spira

"Spira, the base of a column. in the Tuscan and the Roman Doric the base consisted of a single torus,…