This is a seed collection kept at room temperature in glass tubes with cork tops. It was initiated by Luís Cabral in the 1960s to aid plant identification. It consists of 2.552 species/tubes all identified.
The Seminarium is being expanded to include the seeds of c. 1.460 species collected in 2013 by Arménio Matos for the last Index Seminum published by the Coimbra Botanic Garden. The whole collection is being prepared for databasing and it will be organised alphabetically.