FIGURE 19. A–F in Spore morphology of Selaginella (Selaginellaceae) from China and its systematic significance

FIGURE 19. A–F. Spore morphology of Selaginella kurzii (A–C. Megaspores, D–F. Microspores). G–L. S. compta (G–J. Megaspores, K–L. Microspores).—A, E, G, I, K. Proximal surfaces.—C, D, J, L. Distal surfaces.—B, F, H. Portions of surfaces enlarged to show infrastructural detail (B, H. Proximal surfaces; F. Distal surfaces). Scale bars = 100 µm (A, C, G, I & J), 50 µm (B, H), 20 µm (D, E, K & L), 10 µm (F).