[not in body] A genus of cycads with partially submerged bole or tree, small to medium height, bearing a crown of palm-like fronds.

The dioecious plants bear large cones, becoming even larger when ripening on the female, containing reproductive parts of great size.

[1] The common name "burrawang",[2] originally referring to M. communis in the Daruk Australian Aboriginal language,[citation needed] is often used for all the species in the genus.

Informal names published in state listing for the genus include 'rickets' (Bailey, 1931) in Queensland, a name also used in Western Australia for the symptoms of ingestion of species by cattle, and terms zamia, zamia palm, burrawang palm (Ross, 1989) and djeeri (Hopper, 2014) continued to be noted by New South Wales, QLD and W.A.

[3][4] M. lucida Johnson M. moorei von Mueller M. elegans Hill & Jones M. diplomera (von Mueller 1866) Johnson M. dyeri (von Mueller 1885) Gardner M. flexuosa Moore M. mountperriensis Bailey M. glaucophylla Jones M. communis Johnson M. polymorpha Jones The greatest diversity of species occurs in eastern Australia, in southeast Queensland and New South Wales, with one species in the Macdonnell Ranges of Northern Territory and three in the southwest region of Australia.