Diderma brooksii

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 brooksii

Sporocarps scattered to densely clustered, usually sessile, globose , oval to obovate , usually constricted at the base , 1.0-1.5 mm diam., white to cream coloured. Hypothallus large, continuous, venulose , white, usually calcareous. Peridium double , outer layer free from the inner layer, consisting of a thick calcareous crust, brittle, usually smooth but occasionally wrinkled, inner layer thin, membranous, white when lime is present, brownish when lime is lacking. Stalk , when present, as a white or cream-coloured extension of the hypothallus, furrowed , rarely attaining more than 33% of the total height . Columella conical to clavate , white, often attaining 50% of the sporotheca, occasionally reaching the apex and there confluent with the peridium and then the sporotheca apex is usually umbilicate . Capillitium dense, persistent , threads brown with the bases and extremities colourless, flexuose, branched and anastomosed to form a dense reticulum with few free ends, often expanded in the axils. Spore-mass purple-brown. Spores violet-brown, verrucose , 10-12 µm diam., paler, smoother and occasionally thicker on one side, the warts often variable in size and sometimes irregularly distributed. Nivicole.

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: brooksii - Kowalski 1968
        Scientific name: - Diderma brooksii Kowalski 1968

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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G. Moreno, H. Singer and C. Illana 2004 A taxonomic review on the nivicolous myxomycetes described by Kowalski. II. Physarales and Trichiales Österr. Z. Pilzk. 13:61-74
Kowalski 1968 Three new species of Diderma Mycologia 60(3):595-603

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.
Global Biodiversity Information Facility. Accessed March 05, 2008. http://www.gbif.org Mediated distribution data from 2 providers.
Mitchell, David W. December 21, 2007. Provided taxonomic information, physical description, and bibliographic content.

Data Sources

Accessed through GBIF Data Portal March 05, 2008:

Staatliche Naturwissenschaftliche Sammlungen Bayerns: The Myxomycetes Collection at the V. L. Komarov Botanical Institute, St. Petersburg
University of Arkansas: Planetary Biodiversity Inventory Eumycetozoan Databank

Identifiers

Biodiversity Heritage Library NamebankID: 3207919
Global Biodiversity Information Facility Taxonkey: 794604
Globally Unique Identifier: urn:lsid:indexfungorum.org:names:329919
Zipcode Zoo Species Identifier: 2035447