1. From German Achromatin from ancient Greek ἀχρώματος uncoloured + -in.

2. Archegonia and Antheridia grow intermixed with hair-like to club-like paraphyses, left uncoloured in the diagrams

3. Amaranth consists essentially of trisodium 2-hydroxy-1- (4-sulfonato-1-naphthylazo) naphthalene-3,6-disulfonate and subsidiary colouring matters together with sodium chloride and/or sodium sulphate as the principal uncoloured components

4. Amaranth consists essentially of trisodium 2-hydroxy-1-(4-sulfonato-1-naphthylazo) naphthalene-3,6-disulfonate and subsidiary colouring matters together with sodium chloride and/or sodium sulphate as the principal uncoloured components.