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Didymium trachysporum G. Lister
Life   Amoebozoa   Eumycetozoa   Didymiaceae   Didymium

Didymium trachysporum
© The Eumycetozoan Project, 2006 · 0
Didymium trachysporum

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Didymium trachysporum
© The Eumycetozoan Project, 2006 · 0
Didymium trachysporum
Overview
Plasmodium colourless. Sporocarpous or forming slender, curved, simple, branched or annulate plasmodiocarps, sessile. Sporotheca hemispheric or pulvinate on a constricted base, scattered, 0.1-0.6 mm diam., white or cream. Peridium double, the outer layer a smooth or wrinkled crust of compacted lime crystals, the inner layer membranous, hyaline, ± iridescent. Columella rudimentary or lacking and replaced by the pale yellow base which is thickened at the margin with deposits of lime crystals. Capillitium rather scanty, variable, usually consisting of a network of hyaline or purplish, stout or slender threads, sometimes bearing vesicular expansions which enclose lime-crystals. Spore-mass black. Spores 9-10 µm diam., dark purplish brown, coarsely and irregularly verrucose, the warts often arranged in lines to form an imperfect reticulation.

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References
  • Lado,C., Moreno, G. 1976: Contribucion al estudio de los Myxomycetes en Espana Peninsular I.. Anales del Instituto Botánico A.J.Cavanilles 23: 111-124.
  • Lister,G. 1923: On a new species of Didymium occuring in Essex. The Essex Naturalist 20: 113-115.
  • Moreno,G., Illana, C., Lizárraga, M. 2001: SEM studies of the myxomycetes from the peninsula of Baja Californica (Mexico), III. Additions. Annales botanici Fennici 38: 225-247.

Acknowledgements
The Eumycetozoan Project -- working to understand the ecology, sytematics and evolution of myxomycetes, dictostelids and protostelids -- the true slime molds.

Sponsored by grants from the National Science Foundation.


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email: jshadwi@uark.edu   phone: USA-479-575-7393.

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