Rolla M. Tryon

1916

• Pteridophyta of Peru
• A leaf of fern
• A new Drypoteris hybrid
• A new erect species of Selaginella rupestris group
• A new record for Isoetes melanopoda
• A new species of Doryopteris from Surinam
• A revision of the American species of Notholaena
• A revision of the genus Doryopteris
• A sketch of the history of fern classification
• A study of Elymus in Minnesota
• A study of variation in the cytotypes of Dryopteris spinulosa
• An Osmunda hybrid