167,270 species and infraspecific names are in the database, 22,925 images, 64,745 bibliographic items, 505,765 distributional records.


We do our very best to answer genuine e-mails. You can contact Professor M.D. Guiry directly ( with genuine queries or comments.

But, please note:

We do not identify algae, so do not send photographs.
We do not supply literature other than the PDFs that are available on the site.
We do not supply or sell cultures.

Unfortunately, we cannot answer such e-mails any longer.

We also do not answer unsigned e-mails. Each e-mail should have your name and institution or address. 

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Nous ne répondons pas aux e-mails non signés. Chaque e-mail doit porter votre nom et votre institution.

Wir beantworten keine nicht signierten E-Mails. Jede E-Mail sollte Ihren Namen und Ihre Institution haben.

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