1869-1957

Teacher Rare for a women to obtain a

degree and become a teacher

Researcher

Bibliographer

Professional interests Taxonomy Morphology

Published works on Biogeography Phylogeny Economic uses of algae

Never let her gender impede her

1895-received her B.S. Offered a job with the college of MinnesotaBegan TeachingAppointed department librarian

1897-received her M.S.Promoted to instructor

1901-established Botanical Beach Seaside Station

1910-promoted to full professor

1894-distributed Century American Algae Studied, collected and identified algae species Published 5 papers on flora

1895-published lengthy bibliography on the American Phycological Literature

1896-completed Century II of American Algae1898-distributed Century III of American Algae1901-1902-Century V and VI of American Algae1906-published laboratory notes and directions in

General Plant Morphology (Algae, Fungi and Lichens)1910-comlpeted The Myxophyceae of North America and

Adjacent Regions. Century VII the last of American Algae1910-1912-Distributed first 3 Centuries of South Pacific

Algae 1913-Completed 3 Centuries of South Pacific Plants1915-1937-worked on her Index Algarim Universals –

comprehensive bibliographic card file on the algae of the world (37,000 cards in the complete set)

Dedicated hard workerHad a passion for algae

Uncanny skill for finding superb collecting sitesStrong willed Inspired students

6 Ph D. students and numerous M.S. students completed their degrees with Tilden

After dedicating all that she had to her studies Tilden died in poverty in 1957

In her lifetime Produced 50 scientific papers3 books2 major exsiccatae

American AlgaeSouth Pacific Algae