FIGURE 2. SEM-micrographs of Craterium guttatum (A–F, L. Paratype MYX 19157. G–K. Holotype MYX 22638). A. General view of the sporocarp. B. Surface of the outer peridium in the calyculus middle part; uneven distribution of lime granules is clearly visible. C. Calcareous surface of the lid. D. Calcareous surface of the upper part of sporangial calyculus. E. Triple-layered peridium. F. Peridium inner surface. G. Fragment of the pseudocolumella. H. Capillitium. I. Calcareous capillitium nodule. J. Details of spore ornamentation. K, L. Warted spores. Scale bars: A = 200 μm, B–E, I = 10 μm, F = 5 μm, G = 20 μm, H = 50 μm, J = 1 μm, K, L = 2 μm.

Published as part of Gmoshinskiy, Vladimir I., Prikhodko, Ilya S. & Novozhilov, Yuri K., 2024, A new species of Craterium (Myxomycetes, Physarales, Physaraceae) with a mottled peridium, pp. 25-35 in Phytotaxa 665 (1) on page 30, DOI: 10.11646/phytotaxa.665.1.3, http://zenodo.org/record/14518505