Rococo, also known as Late Baroque, was an artistic and architectural style which developed in early 18th century France, and subsequently spread to other parts of Europe and to Russia. Like the Baroque style, it was highly ornate, but with a more playful, delicate and graceful character. It featured elaborate curves and scrolls, asymmetrical shapes, shell and plant motifs (particularly the acanthus leaf) and light pastel colours.
Boiserie (often used in the plural form boiseries) is the name given to ornate, intricately carved and decorated wooden panelling which was used on walls, doors and items of furniture. It was particularly popular in 17th and 18th century France, and may be seen in the Palace of Versailles.
In the pictures below the panelling (boiseries) and ceiling have rococo elements, and the frieze around the top of the walls has acanthus leaf motifs. The panelling is taken from the music room of Norfolk house, the London home of the Dukes of Norfolk between 1722 and 1938. It is on display at the V&A Museum in London.