Description
Genus Didymium
Sporocarpous or plasmodiocarpous. Peridium a thin membrane with a covering of crystalline lime. The peridial lime may be scattered loosely over the surface or united into a crust. Columella or pseudo-columella usually present. Capillitium lime-free, consisting of branched and anastomosed threads, often with nodular thickenings.
Physical Description
Species Didymium applanatum
Sporocarps in groups, stalked, white or pale grey, total height 0.5 mm. Sporotheca discoid , with a very wide basal umbilicus and usually with a small depression above, 0.1-0.2 mm high, c. 1 mm diam. Hypothallus hyaline , sometimes with a small amount of white lime. Stalk usually short, rarely up to 1 mm tall, grooved , brittle, white, by TL pale ochraceous, containing lime and small amounts of granular matter. Peridium single, the basal disc pale brown and slightly thicker and somewhat more persistent than the remainder, the upper part thin and colourless, covered on the outside with white lime crystals clustered in ± angular clumps which are larger than the spores. Dehiscence ± circumscissile. Columella absent. Capillitium scanty and hyaline, consisting of filaments arising from the base of the peridium and radiating towards the periphery, the filaments sparcely dichotomous and sparcely connected. Spore-mass dark brown. Spores pale greyish violet, cluster-warted, 8-11 µm diam.
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- Kingdom:
Protozoa
()
- (Goldfuss, 1818) R. Owen, 1858
- Protozoa
- Phylum:
Myxomycota
()
- Class:
Myxomycetes
()
- Order:
Physarales
()
- Family:
Didymiaceae
()
- Genus:
Didymium
()
- Specific descriptor:
applanatum
- Nann.-Bremek. 1972
- Scientific name: - Didymium applanatum Nann.-Bremek. 1972
- Specific descriptor:
applanatum
- Nann.-Bremek. 1972
- Genus:
Didymium
(
- Family:
Didymiaceae
(
- Order:
Physarales
(
- Class:
Myxomycetes
(
- Phylum:
Myxomycota
(
- Kingdom:
Protozoa
(
Notes
Name Status: Accepted Name . Latest taxonomic scrutiny: Kirk P.M. , 14-Sep-2005
Similar Species
Members of the genus Didymium
There are approximately 215 species in this genus. Here are just 100 of them:
D. affine · D. anellus · D. angularisporum · D. angulatum · D. annulatum · D. annulisporum · D. applanatum · D. aquatile · D. atrichum · D. aurantipes · D. australe · D. baculosporum · D. bahiense · D. bahiense var. bahiense · D. bahiense var. microsporum · D. balearicum · D. barteri · D. bonianum · D. bulbillosum · D. bulbotubulatum · D. canariense · D. candidum · D. capitatum · D. chrysopeplum · D. chrysospermum · D. circumcissile · D. circumscissile · D. clavodecus · D. clavus · D. columbinum · D. columella-cavum · D. comatum · D. commutabile · D. congestum · D. contextum var. conglomeratum · D. contextum var. contextum · D. costatum · D. crassicolle · D. croceoflavum · D. crustaceum · D. crustaceum var. obducens · D. curtisii · D. cyanescens · D. daedaleum · D. daedalum · D. decipiens · D. delhianum · D. dictyopodium · D. difforme · D. difforme var. difforme · D. difforme var. repandum · D. disciforme · D. discoideum · D. dubium · D. echinospora · D. echinosporum · D. elegantissimum · D. eremophilum · D. erythrinum · D. excelsum · D. eximium · D. eximuum · D. expandens · D. fairmani · D. fairmanii · D. farinaceum var. confluens · D. farinaceum var. elongatum · D. farinaceum var. subsessile · D. filamentosum · D. flavidum · D. flexuosum · D. floccoides · D. floccosum · D. fuckelianum · D. fulvellum · D. fulvipes · D. fulvum · D. furfuraceum · D. geaster · D. glaucum · D. globosum var. globosum · D. globosum var. stipitatum · D. granuliferum · D. gyrocephalum · D. haretianum · D. herbarum · D. humile · D. hypnophilum · D. ilicinum · D. inconspicuum · D. intermedium · D. iridis · D. karstensii · D. kowalski · D. labyrinthiforme · D. laccatipes · D. laxifila · D. laxifilum · D. lenticulare · D. leoninum
Bibliography
- Ing 1999 The Myxomycetes of Britain and Ireland Richmond Publishing Co. Ltd.:320
- Nann.-Bremek. 1972 Notes on Myxomycetes XVIII: A new Didymium and some comments on the Didymium species with long-stalked sporangia Proc. Koninkl. Nederl. Akad. van Wetenschappen, Series C, 75(4):352-363
More Info
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Notes
Contributors
- Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 and ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
- Global Biodiversity Information Facility. Accessed March 03, 2008. http://www.gbif.org Mediated distribution data from 4 providers.
- Mitchell, David W. December 21, 2007. Provided taxonomic information, physical description, and bibliographic content.
Data Sources
Accessed through GBIF Data Portal March 03, 2008:
- BeBIF Provider: National Botanic Garden Belgium - Myxomycetes
- GBIF-Spain: Real Jardin Botanico, Madrid: MA-Fungi
- Staatliche Naturwissenschaftliche Sammlungen Bayerns: The Myxomycetes Collection at the V. L. Komarov Botanical Institute, St. Petersburg
- Staatliche Naturwissenschaftliche Sammlungen Bayerns: The Myxomycetes Collections at the Botanische Staatssammlung München - Collection of Hermann Neubert
- University of Arkansas: Planetary Biodiversity Inventory Eumycetozoan Databank
Identifiers
- Biodiversity Heritage Library NamebankID: 9813410
- Globally Unique Identifier: urn:lsid:indexfungorum.org:names:313076
- Zipcode Zoo Species Identifier: 2861300
