Taxonomic fern notes

Rolla M. Tryon

Household manufactures in the United States, 1640-1860

Rolla M. Tryon

Ferns and allied plants

Rolla M. Tryon

The Social Sciences As School Subjects

Rolla M. Tryon

The Social Sciences as School Subjects (Report of the Commission on the Social Studies Part XI)

Rolla M. Tryon

The teaching of history in junior and senior high schools

Rolla M. Tryon

Household manufactures in the United States, 1640-1860

Rolla M. Tryon

Taxonomic problems in the geography of North American ferns

Rolla M. Tryon

Selaginella rupestris and its allies

Rolla M. Tryon

Fern Literature

Rolla M. Tryon

Notes on the ferns of Wisconsin

Rolla M. Tryon

Revision of the genus Pteridium

Rolla M. Tryon

A new Drypoteris hybrid

Rolla M. Tryon

Classification of the Cyatheaceae

Rolla M. Tryon

Problems of cytology and evolution in the Pteridophyta

Rolla M. Tryon

Edith Scamman (1882-1967)

Rolla M. Tryon

The ferns of Peru

Rolla M. Tryon

Phenolic compounds in ferns

Rolla M. Tryon

A new erect species of Selaginella rupestris group

Rolla M. Tryon

Recents additions to the flora of Indiana

Rolla M. Tryon

A revision of the genus Doryopteris

Rolla M. Tryon

Botrychium dissectum and forma obliquum

Rolla M. Tryon

Charles Alfred Weatherby - Teacher and Counselor

Rolla M. Tryon

A revision of the American species of Notholaena

Rolla M. Tryon