FIGURES 55–65. Halamphora submontana. 55–59 in Taxonomic studies of the diatom genus Halamphora (Bacillariophyceae) from the mountainous regions of southwest China, including the description of two new species

FIGURES 55–65. Halamphora submontana. 55–59. LM. Valve views showing size diminution series. Scale bars = 10 μm for all LM figures. 60–65. SEM. 60, 62, 64. External views. 60. Entire valve showing shape of the valve. 62. View of curved proximal raphe and biseriate dorsal striae beneath the raphe ledge. 64. View of curved distal raphe end. 61, 63, 65. Internal views. 61. Entire valve view. 63. Central area with a narrow central helictoglossae. 65. View of valve end, with curved distal raphe ends and helictoglossa. Scale bars shown in each SEM figure.