Prokaryotic Collection

Bacillus sp. bacteria
Bacteria are the most diverse and ubiquitous soil organisms present on Earth

Lobaria pulmonaria, lichen
A cut-out of a lichen specimen held in the crypt herbarium at the Natural History Museum, London

Cetraria islandica, lichen
A cut-out of a branching lichen specimen held in the crypt herbarium at the Natural History Museum, London

Lichen
This is an example of one of Sri Lankas very rich diversity of lichens

Cladonia sulphuratum, lichen
Cut-outs of lichen specimens held in the crypt herbarium at the Natural History Museum, London

Sticta sp. lichen
A cut-out of a lichen specimen held in the crypt herbarium at the Natural History Museum, London

Nephroma sp. lichen
A cut-out of a lichen specimen held in the crypt herbarium at the Natural History Museum, London

Nostoc sp
A cyanobacterium. Members of this genus occur frequently in lichens, especially those in wet habitats

Stromatolite
Section through a fossil stromatolite (fossilised remains of a colony of cyanobacteria cushions). Originating from the Precambrian rocks of Eastern Siberia 2, 500 - 2, 000 million years old

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