Didymium angularisporum

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 angularisporum

Sporocarps gregarious , stalked, 0.7-1 mm total height . Sporotheca depressed-globose, umbilicate below, greyish-white, 0.4-0.5 mm diam., 0.3-0.4 mm tall. Peridium membranous, covered with stellate lime, purplish-brown, with colourless reticulation confined to the upper part. Dehiscence from above. Hypothallus membranous, containing refuse matter, brown at the stalk base , confluent between sporocarps, not calcareous. Stalk tapered upward, ± cylindrical, filled with refuse matter nearly to the apex, brown to dark brown by TL , with many wavy translucent costae, 0.4-0.6 mm high, expanded into a cup at its apex, the apex inserted through the umbilicus into the sporotheca. Columella discoid , containing crystals, dark brown to black, the surface with reticulate ridges , 0.3 mm diam., 0.2 mm wide. Capillitium relatively rigid and thick, almost unbranched except at the extremities which branch dichotomously, hardly anastotnosing, radiating from the columella to the peridium, brown, nearly colourless at the extremities. Spore-mass dark brown. Spores purplish brown, polyhedral, angular, almost smooth , 10.5-11 µm diam.

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: angularisporum - J.Matsumoto, 1999
        Scientific name: - Didymium angularisporum J.Matsumoto, 1999

Unambiguous Synonyms

Didymium angularisporum J. Matsumoto 1999

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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Matsumoto, J. 1999 Two new species of Didymium (Physarales, Myxomycetes) from Japan Mycotaxon 70:153-161

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
MBLWHOI Library: Universal Biological Index and Organizer. uBio.org accessed August 4, 2008.
Mitchell, David W. December 21, 2007. Provided taxonomic information, physical description, and bibliographic content.

Identifiers

Biodiversity Heritage Library NamebankID: 3293609
Catalogue of Life Accepted Name Code: Eum-431
Globally Unique Identifier: urn:lsid:indexfungorum.org:names:459374
Zipcode Zoo Species Identifier: 2861298