Abstract
The writers found that mature cell-walls of mosses and some liverworts could be stained with some basic dyes : orcein, carmine, lacmoid, giemsa, safranin, methylene blue, methyl green and azure B. On the other hand, this juvenile cell-walls could be stained with some acidic dyes : anilin blue, light green and congo red. For the determination of cellulose and uronic acid content in the cell-walls, cell-wall materials isolated from gametophytes of nine species of mosses and liverworts were used. Results indicate that fundamental differences in cellulose and uronic acid content did not exist among the six moss species and three liverwort species. However, the cellulose and uronic acid content was significantly higher in the thalloid liverwort (Conocephalum) than in the leafy liverworts (Bazzania and Plagiochila).
