FIGURE 21. Riella mediterranea. A–B. General habit. A. Female plant. B. male plant. C. Vegetative scale. D. Panduriform propaguliferous scale. E in Taxonomic revision of Riella subgenus Trabutiella (Riellaceae, Sphaerocarpales)

FIGURE 21. Riella mediterranea. A–B. General habit. A. Female plant. B. male plant. C. Vegetative scale. D. Panduriform propaguliferous scale. E. Detail of cells from margin of thallus wing. F. Female involucre. G. Transverse section of female involucre. H. Spore in distal view. I. Spines from distal face. J. Spines from proximal face. (A–I from 9.246 VAL-Briof., J from 9.245 VAL- Briof.).