Arrow

For construction see Frizzi, Baessler-Archiv, Sup. VI, 1914, fig. 60, lower row, 4th from right. This has only two barbs in middle group. Shaft markings: In 2d and 3d internodes (from butt) two elongated right-angled triangles with curvilinear hypotenuse; in 3d internode, 3 similar, less elongated figures with short oblique strokes rising from hypotenuse. In each case the figures stand on a ring. Tip and base of point wrapped with plant cuticle.