
author
1874–1928
Remembered as a pioneering Dutch mycologist, she helped make the study of mushrooms accessible to a wider public in the early 20th century. Her writing and collecting work helped spark lasting interest in fungi in the Netherlands.

by Cath. (Catharina) Cool, H. A. A. van der (Hendrik Adrianus Abraham) Lek
Born in Wormerveer in 1874 and known as "To" Cool, she became one of the most visible early promoters of mycology in the Netherlands. She is closely linked with the rise of popular mushroom study and is noted for encouraging people not just to identify fungi, but also to see them as part of everyday life.
Her work took shape through scientific collections as well as writing. She served in Leiden in roles connected with fungal collections, and her name is associated with the founding years of the Nederlandse Mycologische Vereniging. She also co-authored Het paddenstoelenboekje, a practical guide that helped introduce mushrooms to general readers.
Cool died in Leiden in 1928, but her reputation endured. She is still remembered as an important early guide to mushroom knowledge in the Netherlands, especially for the way she bridged careful study and public enthusiasm.