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Diderma alpinum (Meyl.) Meyl. 1917

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Threat status: Data deficient
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Diderma alpinum (Meyl.) Meyl., Bull. Soc. Vaud. Sci. Nat. 51 261 (1917)
Diderma alpinum (Meyl.) Meyl. 1917

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Indigenous, non-endemic
Present
New Zealand
Political Region

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(Meyl.) Meyl.
Meyl.
Meyl.
1917
261
ICN
Switzerland
species
Diderma alpinum

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alpinum

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Diderma alpinum (Meyl.) Meyl. 1917

PDD 74409, 74410, 74411.
Fruiting body a sessile sporangium (but often elongated into a short plasmodiocarp), crowded, pulvinate, 0.7–1.0 mm in diameter. Hypothallus conspicuous, white, calcareous, mostly under sporangia, sometimes containing large, subcrystalline lime nodules. Peridium consisting of two layers, the layers distant or readily separating, outer layer white, calcareous, crustose, smooth, inner layer membranous, shining, translucent, pale flesh coloured, dehiscence more or less irregular. Columella pulvinate, ochraceous-orange. Capillitium consisting of branched and anastomosing threads, these purplish or hyaline, bearing dark fusiform swellings, conspicuous or sparse. Spores black in mass, purplish brown by transmitted light, distinctly and somewhat irregularly spiny, 11–12 µm in diameter. Plasmodium white.
Recorded from Asia, Europe, and North America (Martin & Alexopoulos 1969, Yamamota 1998, Ing 1999). First reported from New Zealand by Stagg (1982), based on specimens collected in Taupo, Westland, and North Canterbury. Also known from South Canterbury and Mackenzie.
Dead (or sometimes living) herbaceous stems and other types of plant debris, usually near melting snowbanks in alpine regions
Martin & Alexopoulos (1969), Neubert et al. (1995), Ing (1999).
This species is perhaps the most commonly encountered member of the group of "snowbank" myxomycetes found in alpine regions of the Southern Alps (Stephenson & Johnston 2003). It is very similar morphologically to Diderma niveum, which occurs in the same ecological situations.

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Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)
Diderma alpinum (Meyl.) Meyl. 1917
Diderma alpinum (Meyl.) Meyl. (1917)

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Diderma alpinum (Meyl.) Meyl. 1917
New Zealand
Diderma alpinum (Meyl.) Meyl. 1917
New Zealand
Mackenzie
Diderma alpinum (Meyl.) Meyl. 1917
New Zealand
Mid Canterbury
Diderma alpinum (Meyl.) Meyl. 1917
New Zealand
Otago Lakes
Diderma alpinum (Meyl.) Meyl. 1917
New Zealand
South Canterbury

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1cb1d020-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
2 August 1994
19 November 2001
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