Diderma areolatum

Description

Genus Diderma

Sporocarpous, plasmodiocarpous or occasionally pseudo-aethaloid. Peridium with granular lime, typically double , but can be single or triple. In the latter case, crystalline lime may be present in the middle layer. Columella usually conspicuous but sometimes reduced to a thickened base . Capillitium lime-free, consisting of branched and anastomosed threads.

Physical Description

Species Diderma areolatum

Sporocarps gregarious to crowded, sessile, rarely on a dark, stipe-like extension of hypothallus, nearly white to ochraceous or pink, sometimes limeless and pinkish brown basally, globose to depressed-globose, broadly ovoid , or nearly hemispheric , 0.3-0.8 mm diam. Hypothallus inconspicuous, hyaline to brown. Peridium double , the outer layer smooth , thin, fragile, whitish to pale pink, areolate at maturity, the inner layer light pinkish brown, of similar thickness and texture as the outer layer and distinct from it, but sometimes present only at the base and there ± fused with the persistent outer layer. Dehiscence into platelets above, usually persistent below. Columella flesh-coloured, conspicuous , rough, reaching c. 50% of the sporotheca, irregularly clavate or capitate. Capillitium exceedingly scanty, consisting of stout, rigid threads extending from the columella to the peridium, black, sometimes colourless at the extremities or for some distance tapered and simple or dichotomously forked at the ends, 2-8 µm at widest diam. Spore-mass blackish. Spores medium to dark purplish brown, densely spinulose , sometimes slightly paler on one side, (12-)14-17(-18) 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: Diderma ()
        Specific descriptor: areolatum - M.L.Farr, 1979
        Scientific name: - Diderma areolatum M.L.Farr, 1979

Notes

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

Similar Species

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Members of the genus Diderma

There are approximately 157 species in this genus. Here are just 100 of them:

D. acanthosporum · D. acuminatum · D. albescens · D. alexopouli · D. alpinospumarioides · D. alpinum · D. alpinum f. microcarpum · D. antarcticola · D. antarcticum · D. areolatum · D. asteroides · D. atrovirens · D. aurantiacum · D. badhamioides · D. badhamiopsis · D. botryosum · D. brooksii · D. brunneobasale · D. brunneobasalis · D. carmichaelianum · D. carneum · D. chondrioderma · D. cinereum · D. cingulatum · D. cingulatum var. rimosum · D. cingulatum var. rimosum f. pallidosporum · D. circumdissilens · D. circumscissile · D. compactum · D. complanatum · D. concavum · D. concinnum · D. contortum · D. cor-rubrum · D. corrugatum · D. crassipes · D. cribrosum · D. cristatosporum · D. crustaceum · D. cubense · D. cyanescens · D. darjeelingense · D. deplanatum · D. diadematum · D. donkii · D. donkii var. donkii · D. donkii var. echinosporum · D. effusum · D. effusum var. effusum · D. effusum var. microsporum · D. effusum var. pachytrichon · D. endoleuca · D. evelinae · D. fallax · D. flavidum · D. floriforme · D. fragile · D. geasterodes · D. gigantocolumellae · D. globosum · D. globosum var. europaeum · D. globosum var. globosum · D. globosum var. roseum · D. gracile · D. gracilis · D. granulatum · D. hemisphaericum · D. hookeri · D. imperiale · D. imperialis · D. indicum · D. laciniatum · D. lenticulare · D. lepidotum · D. libertianum · D. liceoides · D. lohgadense · D. lucidum · D. lyalii · D. lyallii · D. macrosporum · D. maculatum · D. marieae · D. meyerae · D. microcarpum · D. microsporum · D. miniatum · D. minutum · D. montanum · D. montanum var. album · D. montanum var. montanum · D. muscicola · D. mussooriense · D. neesii · D. nigripes · D. nigrum · D. niveum · D. niveum var. ferrugineum · D. oblongum · D. ochraceum

Bibliography

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M.L. Farr 1979 Notes on Myxomycetes II. New Taxa and records Nova Hedwigia 31(1/2):103-118

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
Mitchell, David W. December 21, 2007. Provided taxonomic information, physical description, and bibliographic content.

Identifiers

Biodiversity Heritage Library NamebankID: 3192787
Catalogue of Life Accepted Name Code: Eum-359
Global Biodiversity Information Facility Taxonkey: 2507578
Globally Unique Identifier: urn:lsid:indexfungorum.org:names:313017
Zipcode Zoo Species Identifier: 2270784