The pavement consists partly of opus Alexandrinum of red and green porphyry mixed with marbles, partly of tesselated work of glass and marble tesserae.
In Anomochloa there are several nearly equal ribs and in some broad-leaved grasses (Bambuseae, Pharus, Leptaspis) the venation becomes tesselated by transverse connecting veins.
The plan of all is the same - an open court, with a tesselated pavement, and one or two marble fountains; orange and lemon trees, flowering shrubs, and climbing plants give freshness and fragrance.