Classifications of plants and animals, especially at the levels above the families, were fairly stable for much of the 20th century.
Modern classifications of plants attempt to assign a plant to a particular taxon and establish relationships with other plants based on genetics, cytology, ecology, behaviour, and probable evolutionary lineages, in addition to gross morphology.
(For information on parasitic diseases in animals, see animal disease: Survey of animal diseases. For information on parasitic diseases in plants, see plant disease: Classification of plant diseases by causal agent).
The best and most widely used classification of plant diseases is based on the causal agent, such as a noninfectious agent or an infectious agent (i.e., a virus, viroid, mycoplasma, bacterium, fungus, nematode, or parasitic flowering plant).
The present work proposes another path for classification of plant species from digital leaf images.
Chemotaxonomical studies have long been used to help the identification and confirmation of taxonomical classification of plant species and botanicals.
On the basis of the chemical skeletons and distributions in plants, N. H. Tan etc. proposed the systematic structural classification of plant cyclopeptides which were divided into two classes, five subclasses, and eight types [38].
Based upon a classification of plant communities found within natural and semi-natural areas in Denmark a Biotope Landscape Model was developed and implemented into a geographic information system (GIS).
In 1753 Carl von Linné Carl Linnaeuss) published his Species Plantarum, a hierarchical classification of plant species that remains the reference point for modern botanical nomenclature.
We also propose an updated classification of plant bZIP genes which should facilitate functional studies.
