Malvacoeus or Malvaceous: How To spell?

The word Malvacoeus is misspelled against Malvaceous, an adjective meaning "Pertaining to, or resembling, a natural order of plants (Malvaceae), of which the mallow is the type. The cotton plant, hollyhock, and abutilon are of this order, and the baobab and the silk-cotton trees are now referred to it."