Plagiothecium curvifolium var. curvifolium Limpr.

Plagiothecium curvifolium var. curvifolium Schlieph. ex Limpr., Die Laubmoose Deutschlands, Oesterreichs und der Schweiz 3: 269. 1897. Type material. Lectotype (designated by Wolski et al. 2022 a): Germany, Thuringia, in feuchten Nadelwäldern, Schmücke, 29 July 1880, D. K. Schliephacke, JE 04004091! Isolectotypes: HBG 02115!, PC 01322640!, WRSL!, G!, DUKE 155945. Description. Plants medium-sized, yellow-green to green; stems 1.5–2.5 cm long, complanate-foliate; leaves symmetrical or almost symmetrical, gently imbricate, lanceolate to ovate-lanceolate, concave, slightly curved towards the ground, 1.7–2.7 × 0.7–1.5 mm (Fig. 9 A); margin incurved, delicately on both sides or strongly on one side; the apex acuminate, not denticulate; laminal cells linear-vermicular, 110–155 × 8–9 μm at midleaf (Fig. 9 C), cell areolation tight; decurrencies of 2–3 rows of rectangular cells forming semi-distinct auricles, some cells from external row inflated; capsules inclined to horizontal. Distribution. Asia (Georgia, Russia); Europe (Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Hungary, Latvia, Netherlands, Poland, Romania, Spain, Sweden); North America (Canada, U. S. A.).