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University Student Level

Undergraduate and postgraduate students studying ecology, biology, environmental science, or related subjects.

A field-based session connecting direct observation of lichens with identification, morphology, ecology, and environmental applications. Content can be adapted to course level and learning objectives.

School Student Level | Artist Level

Bio-Diversity

Bio-Monitoring

Bio-Technology

Laboratory and Microscopy Workshops

Microscopic Worlds of Lichens: Workshops in Kew’s education laboratories allow participants to examine thallus sections, algal cells, fungal structures, and spores under the microscope. Learners can observe differences between genera such as Parmelia, Lecanora, and Cladonia, linking morphology to taxonomy and ecology.
Chemical Spot Tests and Pigment Exploration: Demonstrations of lichen secondary metabolites (e.g., usnic acid) using simple colorimetric reactions illustrate lichen chemistry and its role in protection and identification.
Research Integration: Sessions can be co-led by Kew scientists and British Lichen Society experts, introducing participants to contemporary methods in DNA barcoding and environmental bioindication.

Biodiversity, Taxonomy, and Scientific Learning

The Lichen Garden and Lichen School together illuminate the remarkable biodiversity and taxonomic richness of lichens at Kew. Visitors and students can explore a wide range of lichen growth forms—crustose, foliose, fruticose, squamulose, and leprose—and discover how these morphologies reflect evolutionary adaptation to light, moisture, and substrate. At the Lichen School, workshops introduce classical and molecular identification techniques, linking observable traits with DNA-based taxonomy and reinforcing Kew’s role in advancing public understanding of fungi and cryptogamic diversity.

Diversity & Conservation

Lichens are key indicators of biodiversity and ecosystem health. At Kew Gardens, lichenologists study and identify species growing on trees, rocks, and soil, revealing the hidden diversity of this UNESCO World Heritage Site. Understanding where and how lichens grow helps scientists track environmental changes, conserve rare or sensitive species, and maintain ecological balance. Tree bark hosts leafy and shrubby forms, rocks harbour crusty species, and soils support tiny pioneering lichens — each contributing to habitat complexity. Accurate identification and monitoring are essential for protecting these remarkable organisms and the environments they enrich.

Biomonitoring and Climate Literacy

Because lichens absorb water and nutrients directly from the atmosphere, they serve as sensitive indicators of air quality and environmental change. The Lichen Garden, therefore, functions as a living, evolving exhibition of London’s atmospheric history. Programmes within the Lichen School introduce visitors to bioindicator science, enabling them to compare species richness across Kew, interpret nitrogen pollution patterns, and use digital lichen maps linked to real-time air-quality data. This strengthens climate literacy by connecting visible biodiversity with invisible environmental processes.

Biomonitoring in Kew

Lichens are living indicators of air quality. At Kew Gardens, lichenologists use detailed species checklists and long-term monitoring to study how nitrogen and pollution affect lichen diversity and health. Sensitive lichens disappear as nitrogen levels rise, while tolerant species expand — offering a natural record of changing air conditions. By analysing species distribution, growth forms, and chemistry, researchers at Kew track urban air trends, link lichen vitality to ecosystem resilience, and support conservation of clean-air habitats within this UNESCO World Heritage landscape.

Biotechnology and Future Science

Beyond their ecological importance, lichens offer significant biotechnological potential. Their secondary metabolites possess antimicrobial, antioxidant, and UV-protective properties, which can be explored through demonstrations in Kew’s laboratories and Lichen School workshops. Introducing visitors to lichen chemistry, metabolomics, and bio-inspired materials highlights the role of lichens in sustainable innovation and aligns with Kew’s forward-looking science strategy.

Lichen Biotechnology

In Kew’s laboratories, lichenologists explore the hidden potential of lichens for science and industry. These symbiotic organisms produce unique compounds with antibacterial, antifungal, and antioxidant properties. Researchers study their chemistry for applications in medicine, natural dyes, cosmetics, and ecological restoration. By combining traditional identification with advanced biotechnology, Kew unlocks the biochemical treasures of lichens, demonstrating how these ancient organisms can inspire innovation while conserving biodiversity.

Genomics of Lichens

Lichen genomics reveals how fungal and algal partners form resilient symbioses, enabling survival in extreme environments. Advances in long-read sequencing and metagenomics now allow researchers to disentangle these complex, multi-organism genomes, uncovering pathways for stress tolerance, secondary metabolite production, and evolutionary diversification. At Kew, world-class fungal collections, the Jodrell Laboratory’s genomic capacity, and global research networks create a unique foundation for advancing lichen genomics. Integrating genome skimming of fungarium specimens, sequencing of threatened taxa, and environmental DNA studies would position Kew as a leader in understanding lichen biodiversity and its conservation relevance in a rapidly changing world.

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