The only change he made in the circumscription of the Metzgeriales was to remove the Treubiales in accordance with that change made in the classification of Schljakov .
Schuster revised his system in 1972 and again in 1984 .
The only change Schuster made in the circumscription of the Metzgeriales was to remove the Treubiales in accordance with that change made in the classification of Schljakov .
Schuster revised his system in 1972 and again in 1984 .