(n) :
(botany) Any of very many primitive plants that consist of a thallus (plant body not differentiated into roots, stems and leaves), formerly collected in the obsolete taxonomic group Thallophyta.
(n) :
(botany) Any of very many primitive plants that consist of a thallus (plant body not differentiated into roots, stems and leaves), formerly collected in the obsolete taxonomic group Thallophyta.