A global database of C4 photosynthesis in grasses.

The article offers information on the importance of a C4 database to assemble and index databases of discrete traits for large numbers of plant species. The ecological and evolution significance of C4 photosynthesis is mentioned. It states that the C3 and C4 photosynthetic database is based on published anatomical and stable carbon isotope evidence. A chart is presented depicting photosynthetic type for genera which include a mixture of C3, C4 and C3-C4 intermediate species.