different between aecial vs aecidium

English

Adjective

aecial (not comparable)

1. (mycology) Of, pertaining to, or resembling an aecium.
   • 1984, D. E. Harder, 11: Developmental Ultrastructure of Hyphae and Spores, William Bushnell, Alan P. Roelfs (editors), The Cereal Rusts: Origins, Volume I: Specificity, Structure, and Physiology, page 355,

     In the inner wall facing the aecial cavity, the primary wall materials surrounding the processes disintegrate, partially exposing them.

   • 1996, George Newcombe, Chapter 10: The specificity of fungal pathogens of Populus, Reinhard Friedrich Stettler (editor), Biology of Populus and Its Implications for Management and Conservation, page 226,

     Aecial hosts are primarily conifers. Damage to some aecial hosts may also be considered important, as in pine twist rust caused by M.^[Melampsora] pinitorqua Rostrup.

   • 1998, G. Rangaswami, A. Mahadevan, Diseases of Crop Plants in India, 4th Edition, page 192,

     The uredo- and teleuto-stages occur on wheat, barley and some grasses and the pycnidial and aecial stages on species of Berberis and Mahonia, the alternate hosts.

Related terms

• aecial primordium

Anagrams

• Alecia, Alicea

English

Alternative forms

• æcidium

Etymology

From New Latin aecidium, the diminutive form of Ancient Greek ????? (aikía, “injury”).However Merriam-Webster takes the origin from the Greek ???????? and refers to the botanist John Hill, in his A General Natural History, or New and Accurate Descriptions of the Animals, Vegetables, and Minerals, of the Different Parts of the World, vol. II, A History of Plants (London: Printed for Thomas Osborne, 1751), p. 64: "We have called this genus, distinguished by its peculiar cells, Æcidium, from the Greek ????????, cellula."

Pronunciation

• (Received Pronunciation) IPA^(key): /i??s?d??m/

Noun

aecidium (plural aecidia or aecidiums)

1. The cupulate fruiting body borne upon the mycelium of certain fungi commonly parasitic upon specimens of the Compositae, Lamiaceae, Leguminosae, and Ranunculaceae families
2. (mycology) A member of the form genus Aecidium.

Related terms

Translations

See also

• teliospore
• urediniospore

References