Forma specialis
Forma specialis (plural formae speciales) is an informal taxonomic grouping allowed by the International Code of Nomenclature for algae, fungi, and plants,[1] that is applied to a parasite (most frequently a fungus) which is adapted to a specific host. This classification may be applied by authors who do not feel that a subspecies or variety name is appropriate, and it is therefore not necessary to specify morphological differences that distinguish this form. An example is Puccinia graminis f. sp. avenae, which affects oats.
- Forma specialis is abbreviated f. sp.,
- The plural, formae speciales, is abbreviated ff. spp..
An alternative term in contexts not related to biological nomenclature is physiological race.[2]
See also
- Forma (botany)
- Phytopathology
- Pathovar
References
- ↑ McNeill, J.; Barrie, F.R.; Buck, W.R.; Demoulin, V.; Greuter, W.; Hawksworth, D.L.; Herendeen, P.S.; Knapp, S.; Marhold, K.; Prado, J.; Prud'homme Van Reine, W.F.; Smith, G.F.; Wiersema, J.H.; Turland, N.J. (2012). International Code of Nomenclature for algae, fungi, and plants (Melbourne Code) adopted by the Eighteenth International Botanical Congress Melbourne, Australia, July 2011. Regnum Vegetabile 154. A.R.G. Gantner Verlag KG. ISBN 978-3-87429-425-6. Chapter I. Article 4.4. Note 4.
- ↑ Walker, P.M.B., ed. (1988). The Wordsworth Dictionary of Science and Technology. translated by. W. R. Chambers Ltd. and Cambridge University Press.