The taxonomical structure of the Bryological collection YSU by the time of publication is represented by 573 species, 195 genera, and 77 families. The majority of the specimens belong to Bryophyta (68%), less to Marchantiophyta (32%). Rive classes represented by Bryopsida (57%), Jungermanniopsida (30%), Sphagnopsida (12%), Marchantiopsida and Andreaeopsida (2%) by number of specimens.

A total of 27 orders are represented, with majority specimens from Jungermanniales (27%), Hypnales (21%), Bryales (14%), Sphagnales (11%) and Dicranales (10%), and other 19 orders less represented.

The specimens of Bryological collection YSU belong to 77 families, with majority (11%) from Sphagnaceae, followed by Amblystegiaceae (8%), Dicranaceae (8%), Lophoziaceae (6%), Bryaceae (6%), Scapaniaceae (5%), Anastrophyllaceae (5%), Mniaceae (4%), Brachytheciaceae (4%), Grimmiaceae (3%), Polytrichaceae (3%), Hypnaceae (3%), Cephaloziaceae (3%), with the rest of families representing less than 2% of specimens each.

The collection includes 209 genera, notably being Sphagnum (472 specimens), Dicranum (199 specimens), Lophozia (163), Scapania (152), Pohlia (124), Bryum (115), other genera represented by less than 100 specimens.