Didymium clavodecus

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 clavodecus

Phaneroplasmodium white. Sporocarpous to plasmodiocarpous, scattered , sessile on a restricted base , depressed , occasionally annulate , white. Sporocarps 0.5-1.5 mm diam., plasmodiocarps up to 10 mm in length. Hypothallus scanty, membranous, reddish brown. Peridium double , the outer layer consisting of scattered to compacted stellate lime crystals, the inner layer thin, membranous, iridescent , transparent. Dehiscence irregular. Columella, in sporocarps, an irregular calcareous mound attached to the central base of the fructifications , in plasmodiocarps forming a calcareous ridge with central attachment, occasionally with some portions free from the base of the fructifications. Capillitium rigid , abundant, consisting of flattened, brown tubules which radiate from the columella and attach firmly to the inner peridium by attenuated hyaline apices, the threads branched and anastomosed, connected by transverse tubules. Spore-mass dark purple brown. Spores purple brown, 11-14 µm diam., bearing irregularly spaced, coarse , often capitate, warts , the warts 1.0-1.5 µm tall, often united laterally to form short ridges, also bearing a reticulum with 2-5 meshes per hemisphere.

Taxonomy

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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: clavodecus - K.D.Whitney, 1980
        Scientific name: - Didymium clavodecus K.D.Whitney, 1980

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: Kirk P.M. , 14-Sep-2005

Similar Species

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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

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Whitney, K.D. 1980 A new foliicolous Didymium from northern California Mycologia 71(6):1256-1261

More Info

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Notes

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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.
Eumycetozoa.com
Global Biodiversity Information Facility. Accessed March 05, 2008. http://www.gbif.org Mediated distribution data from provider.
Mitchell, David W. December 21, 2007. Provided taxonomic information, physical description, and bibliographic content.

Data Sources

Accessed through GBIF Data Portal March 05, 2008:

University of Arkansas: Planetary Biodiversity Inventory Eumycetozoan Databank

Identifiers

Biodiversity Heritage Library NamebankID: 3029997
Catalogue of Life Accepted Name Code: Eum-440
Globally Unique Identifier: urn:lsid:indexfungorum.org:names:113463
Zipcode Zoo Species Identifier: 2861307