astronomy

Paul Diederich

Paul Diederich is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Paul Diederich rather than just read about it. In short: Paul Diederich (born 4 May 1959) is a Luxembourgish mathematics teacher and mycologist who specialises in lichenicolous fungi (fungi that live on lichens). Since 1986 he has taught mathematics at the École de Commerce et de Gestion in Luxembourg, and from 1989 to 2008 he served as a research associate at the country's National Museum of Natural History.

Key takeaways

Paul Diederich belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Paul Diederich to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Paul Diederich from memory before moving on to harder problems.

Reference excerpt

Paul Diederich (born 4 May 1959) is a Luxembourgish mathematics teacher and mycologist who specialises in lichenicolous fungi (fungi that live on lichens). Since 1986 he has taught mathematics at the École de Commerce et de Gestion in Luxembourg, and from 1989 to 2008 he served as a research associate at the country's National Museum of Natural History. He has authored more than 190 publications, including major monographs and collaborative volumes, and his work has been recognised with awards such as the Van Rompaey Award (1991) and the Tuckerman Award (2004 and 2019).

Career and research Diederich studied mathematics at the Université libre de Bruxelles from 1979 to 1983, earning a licence en mathématiques. He then undertook teacher training (1983–1986), studied computer science at the University of Liège in 1986–1987, and completed a doctorate in botany in 1989 at the Université catholique de Louvain. His thesis treated the taxonomy, ecology and biogeography of Luxembourg's epiphytic lichens and their lichenicolous fungi (excluding macrolichens). Since 1986 he has taught mathematics at the École de Commerce et de Gestion in Luxembourg, and since 1989 he has collaborated with the National Museum of Natural History; he was a research associate there from 1989 to 2008. He has been active in the Société des naturalistes luxembourgeois since 1974, joined its committee in 1985, and has served on the editorial committee (including page layout) for the society's bulletin. His research focuses on lichenicolous fungi. He has produced more than 190 publications, including a monograph on the lichenicolous heterobasidiomycetes (1996). His fieldwork spans Belgium, Luxembourg and northern France as well as Papua New Guinea, and he has described more than 200 new species, several new genera, and proposed two new orders, Lichenoconiales and Lichenostigmatales. He contributed editorially to volume 2 of Lichen Flora of the Greater Sonoran Desert Region (2004) and co-authored a checklist of the lichens and lichenicolous fungi of Belgium and Luxembourg (2000). He also co-created and maintains widely used online databases: the regional checklist "The lichens and lichenicolous fungi of Belgium, Luxembourg and northern France" (lichenology.info) and the global "Lichenicolous fungi – worldwide checklist" (lichenicolous.net).

Honours and recognition As a school student he won first prize in Luxembourg's Réalisations Jeunes scientifiques (1978) for a bioindicator-based air-pollution map, and the following year received a distinction at the 11th European Philips Contest for Young Scientists and Inventors in Oslo (1979); he later published the project in the SNL bulletin. He was awarded the Van Rompaey Award in 1991 for the best recent botanical publication in Belgium and Luxembourg, and has twice (2004 and 2019) received the Tuckerman Award for the best paper published in the academic journal The Bryologist. Taxa named in his honour include the genera Diederichia, Diederimyces, and Diederichomyces, and several species: Strigula diederichiana Etayo, Cl.Roux & Sérus. (1993); Byssoloma diederichii Sérus. (1998); Taeniolella diederichiana Etayo & Calat. (2005); Zwackhiomyces diederichii D.Hawksw. & Iturr (2006); Relicina diederichii Elix (2007); Enterographa diederichiana Ertz (2009); Endohyalina diederichii Giralt, Van den Boom & Elix (2010); Tremella diederichiana Pérez-Ortega, Millanes, V.J.Rico & J.C.Zamora (2016); Capronia diederichiana Pinault & Cl.Roux (2020); and Abrothallus diederichii Suija & F.Berger (2024).

Selected publications His output includes regional monographs (e.g. Luxembourg epiphytic lichens and their lichenicolous fungi, 268 pp., 1989), a world monograph (The lichenicolous heterobasidiomycetes, 1996), major collaborative volumes (Sonoran Desert Lichen Flora vol. 2, 2004), and phylogenetic papers ranging to broad fungal lineages (including a six-gene phylogeny in Nature, 2006).

Lawrey, James D.; Diederich, Paul (2003). "Lichenicolous fungi: interactions, evolution, and biodiversity". The Bryologist. 106 (1): 80–120. doi:10.1639/0007-2745(2003)106[0080:LFIEAB]2.0.CO;2. Diederich, Paul; Lawrey, James D.; Ertz, Damien (2018). "The 2018 classification and checklist of lichenicolous fungi, with 2000 non-lichenized, obligately lichenicolous taxa". The Bryologist. 121 (3): 340–425. doi:10.1639/0007-2745-121.3.340. Diederich, Paul; Millanes, Ana M.; Wedin, Mats; Lawrey, James D. (20 August 2022). Flora of Lichenicolous Fungi. Basidiomycota (PDF). Vol. 1. Luxembourg: National Museum of Natural History. pp. 1–351. ISBN 978-2-919877-26-3. Archived from the original (PDF) on 20 November 2024. Retrieved 17 September 2025.

See also Category:Taxa named by Paul Diederich

References

External links Paul Diederich – personal page

Illustrations

Worked examples

Example 1 — a first encounter with Paul Diederich

Start with the simplest possible case. Write down what Paul Diederich claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Paul Diederich before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Paul Diederich ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Paul Diederich

In research: Paul Diederich appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Paul Diederich in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Paul Diederich is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1959 births, Living people, Luxembourgian scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Paul Diederich outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Paul Diederich in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Paul Diederich means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Paul Diederich out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Paul Diederich in simple terms?

Why does Paul Diederich matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Paul Diederich?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Paul Diederich.