FIGURES 56–61 in Novel Neidium Pfitzer species from western Canada based upon morphology and plastid DNA sequences

FIGURES 56–61. Neidium collare sp. nov. SEM, external view. Fig. 56. Whole valve. Fig. 57. Central valve with longitudinal canal and transapical central area. Proximal raphe branches deflected. Fig. 58. Valve face mantle junction with epivalve, hypovalve and copula band. Fig. 59. Valve face with developed areolae. Areolae without finger-like cribra. Fig. 60. Apex with open bands of copulae. Copulae with 2 rows of pores. Lacinia weakly developed. Fig 61. Apex showing no apparent lacinia. Longitudinal canals extend to the tip of the apex. Scale bars = 30 μm: Fig. 56; 5 μm: Figs 57, 58, 60; 3 μm: Fig. 61; 2 μm: Fig. 59.