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 circumdissilens
Sporocarps rounded or ovoid to short plasmodiocarpous, 0.3 to 1.7 mm wide and 0.2 to 0.3 mm thick, resting perfectly on the substrate or rarely narrowed at the base , gregarious to crowded in expanded groups, wrinkled to furrowed , brownish grey to dull creamy, at the base somewhat darker and the colour changing to that of the hypothallus, at the top calcareous. Hypothallus dark brownish-grey, common to a group of sporocarps, somewhat iridescent . Peridium of two layers, the inner one membranous, hyaline , closely attached to the outer wall, the outer wall calcareous, lime nodes 0.5-2.0 µm, rounded; Dehiscence cirsumscissile without a real lid, after dispersion of the contents, the basal peridium remaining as a bowl with the border bent to the centre. Columella flattened as only a thickening of the basal plate , filled with a thin layer of orange to red brown lime granules . Capillitium abundant, the threads slender, flaccid , smooth to flexuous , dichotomously branched but rarely anastomosed, 0.3-0.6 µm, pale brown to hyaline, the tips hyaline. Spores pale brownish in the mass, greyish-brown by TL , 8-9 µm diam., strongly warted, the warts different in size and distribution, without germ pore . Plasmodium not observed.
Taxonomy
- 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:
circumdissilens
- Fatau & Schirmer
- Scientific name: - Diderma circumdissilens Fatau & Schirmer
- Specific descriptor:
circumdissilens
- Fatau & Schirmer
- Genus:
Diderma
(
- Family:
Didymiaceae
(
- Order:
Physarales
(
- Class:
Myxomycetes
(
- Phylum:
Myxomycota
(
- Kingdom:
Protozoa
(
Similar Species
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
- Flatau and Schirmer 2004 Neue Myxomyceten aus Deutschland Zeitschrift für Mykologie 70(2):187-206
More Info
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Notes
Contributors
- Bisby FA, Roskov YR, Orrell TM, Nicolson D, Paglinawan LE, Bailly N, Kirk PM, Bourgoin T, van Hertum J, eds (2008). Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist Taxonomic Classification. CD-ROM; Species 2000: Reading, U.K.
- Eumycetozoa.com
- Global Biodiversity Information Facility. Accessed March 18, 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 18, 2008:
- University of Arkansas: Planetary Biodiversity Inventory Eumycetozoan Databank
Identifiers
- Biodiversity Heritage Library NamebankID: 11071632
- Catalogue of Life Accepted Name Code: Eum-371
- Global Biodiversity Information Facility Taxonkey: 17454179
- Zipcode Zoo Species Identifier: 2454340
