Persoon, C. H. (1794) Neues Magazin für die Botanik 1: 89
Type loc.: France.
globose sporocarps, gregarious, 0.6-07 mm Ø, stipitate. total height
2 mm, brownish beige, shining.
membranous, continuos under a group of sporocarps, greyish yellow
2/3 of total height, furrowed, often ± flattened and somewhat twisted,
brownish beige and ± translucent by RL, yellowish orange and
translucent by TL.
reddish brown, slightly rougehed, 1/3 of sporocyst diam.
rather tough, pale greyish yellow by TL, irregularly roughened on
the inside, on outside with numerous flattened lime scales,
pale greysih yellow by TL, and with a faint internal radiating pattern,
15-30 µm in diam.
of thin, 1-1.5 µm broad, dark brown threads, pale at extremities,
radiating from columella to peridium, sparsely branched at narrow
angles, with irregular warts along whole length exept at extremities.
globose of somewhat ovoid, 8.5 - 9.2 - 10.0 µm Ø (n=25), medium to dark
brown by TL, often paler on one side, almost black by RL, with
scattered, large spines up to ca 1 µm high, and occasionally with
a few ridges.
The danish specimen was found on the inside of large piece of Quercus
bark. The German finds were made on dead wood af Fagus and Carpinus.
So far only one find: Sjælland, Hornsherred, Jægerspris Nordskov.
L. stipitatum has only been published from two collections in Germany, Hessen.
See Flatau, Leo 1984
The Danish specimen was collected and identified by the late
Svend Olsen. Svend was a keen and talented amateur mycologist. At his
death in 2013 he left a collection of myxomycetes of allmost 400
specimens, of which many rare species and some new to Denmark.
An obituary was published in "Svampe" vol. 68, the periodical of the
Danish Mycological Society.
The present collection deviates in some minor respects from Flatau's
description of the type. The stipe of the Danish material is completely
devoid of lime inclusions and translucent by TL. The spores are beset
with scattered, medium sized spines, not warts, although Flatau
describes the warts as "kurze konische Stacheln".
In 2019 I wrote:
"In microscopical characters L. stipitatum bears some resemblance to
Diderma floriforme, which have prompted
Poulain et al., 2011 to
suggest that "This species might be a lepidodermoid form of Diderma
floriforme". I do not agree."
Based on the new information, I must admit, that I was wrong. Once
again, the taxonomic jugdement of Marianne Meyer and collaborators
turned out to be true.
Description and discussion based on the only Danish collection:
SAAO 357, Denmark, Jægerspris Nordskov, 6.5.2002, on bark of Quercus.
Abbreviations: TL : transmitted light; RL : reflected light; Ø : diameter;
TBU : Danish Botanical Topographical District.
Colour-codes refer to: Kornerup, A. & J. H. Wanscher 1974: Farver i farver.
5th reprint. Politikens Forlag, Copenhagen.
When not otherwise indicated spore measurements are given as:
min-mean-max or (extreme-)min-mean-max(-extreme). Spore measurements are exclusive of ornamentation.
Line drawings are free hand sketches.
Distribution maps: Maps of Danish distributions are based on material seen
by the author. World distributions are based on
reports extracted from literature.