FIGURES 13–18 in Novel Neidium Pfitzer species from western Canada based upon morphology and plastid DNA sequences

FIGURES 13–18. Neidium beatyi sp. nov. SEM internal view. Fig. 13. Central area with linear forming interconnected helictoglossae. Fig. 14. Apex with a curved forming helictoglossa at the edge of the terminal nodule. A single prominent longitudinal canal extends to the nodule. Figs 15, 17. Multiple longitudinal canals; at center canal similar (Fig. 15), towards apex one becomes more prominent (Fig. 17, arrow). Fig. 16. Renilimbia surround hymenae covered areolae (arrow). Fig. 18. Open chambered formation (apically and transapically) of the longitudinal canal. Scale bars = 10 μm: Fig. 14; 5 μm: Figs 13, 17; 2 μm: Fig. 15: 500 nm: Figs 16, 18.