TABLE 2 in Stemonitis amphorocolumella (Stemonitidaceae, Myxomycetes), a new species from Western Siberia

TABLE 2. Morphological comparison among Stemonitis amphorocolumella and related species from the Stemonitis genus having columella ending with expansions at the apex.
SpeciesSporocarps (height), mmColumella (form of the apex)PeridiumCapillitum (membrane-like expansions)Spores (size), μmSpores (ornamentation)S. amphorocolumella6 – 9shaped like aleaving a collarcapillitial nodes with9 – 11reticulatebottle or amphoraat the base of themany of the bulbous -sporothecamembranousexpansionS. capillitionodosa3 – 6sinuous atfugaciouscapillitial nodes9 – 10spinuloseapexending in awith many largefunnel-shapedof the membranousexpansions 17 –expansion50 μm diam.S. flavogenita4 – 8membranousfugacioususually small,7 – 9wartedexpansionexpansions in theaxilsS. sichuanensis10 – 13ovoid tofugaciouscapillitial nodes6 – 7wartedtriangularwith many ofexpansionthe membranousexpansion