FIGURE 1 in A systematic monograph of the genus Thysananthus (Lejeuneaceae, Marchantiophyta)

FIGURE 1. Method of measurement in Thysananthus. A. Leaf, ventral view; a = appendage, d = dorsal leaf margin, f = lobule free margin, k = keel, l = leaf length, lb = lobule length, t1,2 = lobule teeth, u = auricle, v = ventral leaf margin, w = leaf width, wb = lobule width. B. Underleaf, ventral view; u = auricle, l = underleaf length, w = underleaf width. C. Perianth, ventral view; b = beak, l = perianth length, w = perianth width. D. Portion of shoot with Lejeunea-type branching, ventral view; c = collar. E. Portion of shoot with androecia, gynoecium, and lejeuneoid innovation (dichasial pattern), ventral view. F. Flagellum at stem base, ventral view. G. Dorsal leaf bases are distinctly extending across the dorsal midline of the stem, indicating that lateral merophytes are dorsally interlocking; h = hyaline papillae. H. Underleaf base in longitudinal section. (A from the lectotype of T. appendiculatus; B–C from the holotype of T. discretus; D from T. spathulistipus, Sukkharak 766 (BKF, GOET); E from T. spathulistipus, Sukkharak 746 (BKF, GOET); F from isolectotype of T. comosus; G from T. spathulistipus, Sukkharak 716 (BKF, GOET); H from holotype of T. discretus).