BLAM e. V.

Bryological and Lichenological Association for Central Europe

Text in english  text in english


BLAM was founded about 50 years ago to facilitate contact between people working in any field of lichenology or bryology in Central Europe. Today, BLAM is a registered association with 320 members, EU-European and abroad, professionals and amateurs. BLAM is a registered association ("e. V."), No. VR 555 Dü (Vereinsregister Bad Dürkheim).


BLAM Excursion and Annual Meeting 2021

Black Forest, Germany, 15-19 September, organized by Michael Lüth; details here.

Annual General Meeting 2021 

In connection with the annual excursion, the BLAM board cordially invites all members to the general meeting. This will take place on Friday, 17 September 2021, at 8.00 p.m., in the youth hostel Hebelhof Feldberg, Passhöhe 14, 79868 Feldberg. Requests for additions to the agenda must be sent to the 1st Chairman ( by 28 August 2021. You will find the agenda in the last issue of the Herzogiella, which was sent by conventional mail.


Becoming a member

Membership is open to anyone, professional and amateur. Members receive the society's journal HERZOGIA and have the possibilty to join excursions (mainly to the Alps, Tatra, etc).
If you wish to join please contact the to the treasurer Dr. Martin Nebel, Wellingstraße 14, 70619 Stuttgart, Germany.

Annual subscription is 30 € (students and seniors 20 €).


Our society bulletin is been named Herzogiella

The first volume was published recently and mailed to all members. Editorial board: Stefan Kaufmann & Dietmar Teuber. Please mail manuscripts (excursion reports, species lists, comments on books, small papers dealing with lichens and/or bryophytes, notes on events etc.) to Dietmar Teuber before January 2021.


Purchasing publications

HERZOGIA (current or back issues) can be purchased by sending an E-mail to the treasurer Dr. Martin Nebel, Wellingstraße 14, 70619 Stuttgart, Germany.


Our bank account details

Name beneficient: BryolLichenolArbeitsgem
Place beneficient: Bad Duerkheim Country beneficient: Germany
SWIFT/BIC: MALADE51DKH IBAN: DE49 5465 1240 0000 5793 00
Name of the bank: Sparkasse Rhein-Haardt


BLAM-Mailinglist blam-web

This is a mailinglist open for people interested in bryology and lichenology. Language is mainly German or English. For subscription, go to "blam-web"-Website (at University of Graz, Austria; English version available) and fill the form. You will be sent an email requesting confirmation. Once confirmation is received, your request will be held for approval by the list moderator. You will be notified of the moderator's decision by email. The list of members is not available to non-members.


Bryophyte and Lichen of the Year 2021

Rhytidiadelphus squarrosus and Lecanora muralis are bryophyte and lichen of the year 2021 (text in German).

On the annual general meeting in 2004, BLAM members for the first time elected a lichen of the year. And since 2005, both a bryophyte and a lichen of the year are elected. Different themes were decisive for the selection of the respective mosses and lichens. For example, species were selected that benefit from global climate change or eutrophying nitrogen deposition into the atmosphere, thus drawing attention to the effects of these noxious agents.But the endangerment of many species as a result of the loss of their habitats was also an issue, as was the "nuisance" felt by some people when certain species "pollute" their gardens, sidewalk slabs or roof tiles - see the 2021 selection.

Look here for recent species of the year:

2008: Orthotrichum pulchellum und Letharia vulpina
2009: Leucobryum glaucum und Cladonia rangiferina
2010: Polytrichum commune und Dibaeis baeomyces
2011: Thuidium abietinum und Fulgensia fulgens
2012: Buxbaumia viridis und Lobaria pulmonaria
2013: Marchantia polymorpha und Peltigera didactyla
2014: Hedwigia ciliata und Rhizocarpon geographicum
2015: Schistostega pennata und Psilolechia lucida
2016: Sphagnum magellanicum und Icmadophila ericetorum
2017: Ctenidium molluscum und Variospora flavescens
2018: Bartramia pomiformis und Umbilicaria cylindrica
2019: Cryphaea heteromalla und Parmotrema perlatum
2020: Ptilidium pulcherrimum und Cladonia digitata


Herzogia (ISSN 0018-0971) is the international journal of the Bryological and Lichenological Association for Central Europe (BLAM) and publishes original research papers and short communications in German and English. It focuses on the systematics, taxonomy, biogeography and ecoltogy of bryophytes and lichens with predominantly European distribution, or on species which are of general interest to members of BLAM. Herzogia is published in 2 parts per volume and year. » abstracts and papers of vol 16 to 22. More recent volumes are accessible via BioOne.

Herzogia - Editorial board

Senior editors

Dr. Volker OtteDr. Frank Müller



Dr. Christian Berg, Graz
Prof. Dr. Harald Kürschner, Berlin
Dr. Martin Nebel, Stuttgart
Dr. Klaus Stetzka, Tharandt


Dr. Wolfgang v. Brackel, Röttenbach
Dr. Gintaras Kantvilas, Hobart
Prof. Dr. Matthias Schultz, Hamburg
Dr. Toby Spribille, Graz
Dr. Holger Thüs, Stuttgart
Dr. Silke Werth, Graz

Author instructions - in German and English (PDF)

Submission of manuscripts

Volker Otte, Senckenberg Museum für Naturkunde Görlitz, PF 300 154, 02806 Görlitz, Deutschland
Phone +49 3581 47605311 
Fax +49 3581 47605101



Recent volumes are accessible via BioOne (free access for BLAM-members).

Tittelbild der aktuellen Herzogia


Ecological indicator values of 516 Central European lichen species

Citation: Wirth, V. (2010): Ökologische Zeigerwerte von Flechten. - Herzogia 23 (2): 229-248


Michael Lüth has created a website showing all tables of his famous Atlas of the Bryophytes of Germany Vol. I to VII - "Bildatlas der Moose Deutschlands"!

Please visit to view the nice colour plates at 700x1000 pixels resolution. This is a huge gift to all who are interested in bryophytes! Thank you very much, dear Michael!