The Reverend William Walter Watts (1856-1920) was a keen amateur collector of cryptogams - including ferns, mosses and liverworts. At every opportunity, Watts would carefully gather, press and document these delicate plants, making detailed observations about their growth habits and habitat. Over a lifetime of dedicated collecting within Australia, Watts discovered more than 200 species of ferns, mosses and liverworts. These specimens, collected as an enjoyable pastime, continue to support important research into cryptogams today.