Cycad (Cycas clivicola)

Species information

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Glossary

Cyanobacteria: A group of bacteria that are able to photosynthesise and contain the pigment chlorophyll. They used to be known as ‘blue-green algae'. They are thought to have been the first organisms to produce oxygen; fossil cyanobacteria have been found in 3000 million year old rocks. As they are responsible for the oxygen in the atmosphere they have played an essential role in influencing the course of evolution on this planet.
Dioecious: Male and female flowers are borne on separate plants.
Germination: The beginning of growth, usually following a period of dormancy and in response to favourable conditions. For example, the sprouting of a seedling from a seed.
Subspecies: A population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.
Symbiotic relationship: Relationship in which two organisms form a close association, the term is now usually used only for associations that benefit both organisms (a mutualism).