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. 2021 Apr 23;12:655910. doi: 10.3389/fmicb.2021.655910

FIGURE 5.

FIGURE 5

Epigeocarpum crypticum. (A) Glomerocarp (=sporocarp) with glomerospores (=spores; sp). (B) Spores on which no pressure was applied; note that spore wall layer (swl) 2 slightly contracted and separated from the lower surface of swl1, and swl3 only slightly separated from the lower surface of swl2. (C–G) Spore wall layers (swl) 1–3 and subtending hyphal wall layers (shwl) 1 and 2 of spores on which pressure was applied; note that the laminate swl2 transferred into a crown-like structure, and swl3 usually slightly contracted and separated from the lower surface of swl2 and formed a septum (s) located at approximately half the length of the channel connecting the subtending hyphal lumen with the spore interior; peridial hyphae (ph) are visible in (D). (H) Intact spores with swl1–3, shwl1 and 2, and glebal hyphae (gh) mounted in PVLG + Melzer’s reagent. (A) Dry specimen. (B–E,G) Spores in PVLG. (F,H) Spores in PVLG + Melzer’s reagent. (A) Light microscopy. (B–H) Differential interference microscopy. Scale bars: (A) = 200 μm, (B–H) = 10 μm.