Sporocarps hemispherical, sessile on a broad base or somewhat
constricted at base, ca. 0.2-0.5 mm Ø, dark brownish olive,
solitary or in small groups.
Inconspicuous, not seen.
Peridium membraneous, rather tough, pale to medium greyish yellow
by TL, on the the inside with regularly distributed, minute warts,
with much refuse matter on the outside, dehiscing by a ± sharply
defined lid leaving a small, low cup-like structure.
Spores almost black, with a slight olive tint by RL, pale to medium
yellowish grey by TL, very delicately, densely and regularly warted
(much like peridium), some spores with a lighter area, globose,
11-12.22-14 µm Ø (n=25)
On dead twigs of Rubus fruticosus (coll.), but also reported from
other substrates (f.ex. see
Unknown. So far only one find, but this inconspicuous species is probably
Reported from Great Britain, Ireland, Gemany and Lithuania. A report
from Hawaii (Eliasson (1991)
have proved to belong elsewhere in the genus.
The Danish collection was found during an initial inspection of dead
twigs of Rubus collected for moist chamber culture. The sporocarps
are difficult to see in the field, but already opened sporocarps
may be detected by a hand lens as small 'craters' on lighter parts
of the substrate, not to be mistaken for perithecia of dead pyrenomycetes.
The species should probably be sought for particularly during mild
Description and discussion based on the only Danish collection:
hfg 2450, Denmark, Sjæll., Ryvangen.
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.