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Physarum albescens Ellis, ex T. Macbr
Life   Amoebozoa   Eumycetozoa   Physaraceae   Physarum

Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens

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Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens
Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens

Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens
Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens

Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens
Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens

Physarum albescens
© The Eumycetozoan Project, 2006 · 0
Physarum albescens
Overview
Myxocarps loosely to densely gregarious, rarely scattered, subglobose to shortly plasmodiocarpous or, more commonly, obovoid, stalked on strands of hypothallus or sometimes sessile, 0.7-1.5 mm diam., up to 2.0 mm high, white, pale to brilliant yellow to dark orange or, when lime is lacking, dark blue. Dehiscence by small flakes above leaving a persistent base. Peridium single but, when the limy crust is especially thick, appearing double as the lime flakes away, membranous and iridescent when lime is lacking. Stalk up to 2.0 mm long. Hypothallus massive, veined, creamy yellow to pale orange. Columella absent, pseudocolumella rarely present. Capillitium pale to dark brown forming a rigid, intricate reticulum, attached to the peridium, threads flattened, lime knots, sparse to numerous, minute to large, round, elongated or branched, white, yellow, orange or red. Spore-mass black to dark purple-brown. Spores purple to violet-brown, 11-13 µm diam., spinulose, often paler on one side. Plasmodium yellow to scarlet or orange-red. Nivicole.

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References
  • Bozonnet,J.M., Meyer, M., Poulain, M. 1992: Special Myxomycetes. [Collection of some small papers and a checklist for the Savoyen. Bull.Trim.Fed.Myc.Dauphine-Savoie 125: 1-40.
  • Cochet,S., Monier, C. 1975: Physarum albescens Ellis ex Macbr. myxomycéte nouveau pour la France. 91: 153-154.
  • Donadini,J.C., Trimbach, J. 1974: Physarum albescence Ellis ex Macbride, a Myxomycete new to France. Bulletin de la Société Linnéenne de Provence 27: 71-78.
  • Nowotny,W. 1995: 17. Linz, Magistrat der Stadt Linz, Gutenberg-Werbering GmbH. 38 p.

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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Please send any corrections and comments about this page to John Shadwick
Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA
email: jshadwi@uark.edu   phone: USA-479-575-7393.

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