Radula acutiloba

Pale glaucous green to yellow-green mats. Margins of leaf lobes regularly bearing globose to ellipsoid gemmae composed of up to 30 cells. Leaves orbicular to reniform, 400–875 μm long, 350–675 μm wide, rounded at apex, imbricate, inserted beyond dorsal mid-line and leaving no continuous row of cells uninterrupted by leaf insertions, extending over dorsal side of stem and reaching opposite edge of stem, attached to lobule by a straight, bulging or scalloped keel; lobe margin irregularly repand, becoming erose with age due to detachment of marginal gemmae, in most leaves descending below the level of the keel and forming a distinct notch at intersection; lobule quadrate or rectangular, 1/5–1/4 of lobe area on leading shoot, 180–380 μm long, 150–275 μm wide, with acute to acuminate corner opposite to stem, free and extending to half way or more over the ventral stem as an acute to rounded point before attachment; leaf lobe cells polygonal, not forming a vitta, 15–33 μm long, 15–23 μm wide, thin-walled, with concave trigones, smooth, with a single oil body; oil bodies brown, rugose.