Download Copy a link to this page Cite this record

Diderma effusum (Schwein.) Morgan 1894

Scientific name record
Names_Fungi record source
Is NZ relevant
This is the current name
This record has collections
This record has descriptions
This is indigenous
Threat status: Data deficient
Show more

Click to collapse Details Info

Diderma effusum (Schwein.) Morgan, J. Cincinnati Soc. Nat. Hist. 16 155 (1894)
Diderma effusum (Schwein.) Morgan 1894

Click to collapse Biostatus Info

Indigenous, non-endemic
Present
New Zealand
Political Region

Click to collapse Nomenclature Info

(Schwein.) Morgan
Schwein.
Morgan
1894
155
ICN
species
Diderma effusum

Click to collapse Classification Info

effusum

Click to collapse Descriptions Info

Diderma effusum (Schwein.) Morgan 1894

PDD 48215, 75474, 75475.
Fruiting body a sessile sporangium or (more commonly) a plasmodiocarp, the latter usually broadly effused, gregarious, 0.5–1.5 mm broad and often up to 6 cm in maximum extent. Hypothallus membranous, white, rarely extending very far beyond the fruiting body and often inconspicuous. Peridium double, the outer layer calcareous, relatively smooth, white, the inner layer membranous, colourless, dehiscence irregular. Columella flat pulvinate, pinkish brown. Capillitium delicate, the threads colourless or pale purple, sparingly branched and anastomosing. Spores dark purple in mass, pale violaceous brown by transmitted light, almost smooth to minutely warted, 7–9 µm in diameter. Plasmodium white.
Considered to be cosmopolitan by Martin & Alexopoulos (1969). First reported from New Zealand by Mitchell (1992), based on a specimen collected in Dunedin. Also known from Auckland.
Dead leaves and other plant debris on the forest floor.
Martin & Alexopoulos (1969), Nannenga-Bremekamp (1991), Stephenson & Stempen (1994), Neubert et al. (1995), Ing (1999).
Typical fruitings of Diderma effusum are easily recognized by their broadly effused plasmodiocarps. Diderma chondrioderma is rather similar in appearance, but much less common in nature, although it sometimes appears on tree bark in moist chamber cultures. Sessile sporangia of D. hemisphaericum might be confused with those of D. effusum, but the presence of at least some stalked sporangia in a given fruiting is enough to distinguish this species. In northern New Zealand, Diderma effusum appears to be relatively common on decaying fronds of nikau palm (Stephenson 2003).

Click to collapse Taxonomic concepts Info

Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan (1894)
Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan (1894)
Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan (1894)
Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan (1894)
Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan (1894)
Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan (1894)
Diderma effusum (Schwein.) Morgan 1894
Diderma effusum (Schwein.) Morgan 1894

Click to collapse Collections Info

Diderma effusum (Schwein.) Morgan 1894
New Zealand
Auckland
Diderma effusum (Schwein.) Morgan 1894
New Zealand
Auckland Islands
Diderma effusum (Schwein.) Morgan 1894
New Zealand
Campbell Island
Diderma effusum (Schwein.) Morgan 1894
New Zealand
Coromandel
Diderma effusum (Schwein.) Morgan 1894
New Zealand
Dunedin
Diderma effusum (Schwein.) Morgan 1894
United States

Click to collapse Metadata Info

1cb18781-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
4 November 1994
19 November 2001
Click to go back to the top of the page
Top