FIGURE 5. A–B in Spore morphology of Selaginella (Selaginellaceae) from China and its systematic significance

FIGURE 5. A–B. Spore morphology of Selaginella kraussiana (A–B. Microspore). C–H. S. remotifolia (C–E. Megaspores, F–H. Microspores). I–L. S. tamariscina (I–L. Microspores).—A, B, C. Proximal surfaces.—B, E, F, H, J. Distal surfaces.—H, K. Tetrads.—D, G, L. Portions of surfaces enlarged to show infrastructural detail (D. Proximal surface; G, L. Distal surfaces). Scale bars = 100 µm (C, E), 20 µm (A, B, F, H, I, J & K), 50 µm (D), 10 µm (G, L).