Plagiothecium denticulatum var. pseudosylvaticum (Warnst. in Schiffner) G . J. Wolski

Plagiothecium denticulatum var. pseudosylvaticum (Warnst. in Schiffner) G. J. Wolski comb. nov.

≡ Plagiothecium pseudosylvaticum Warnst. in Schiffner, Österreische Botanische Zeitschrift 48: 428. 1898. Lectotype (designated by Wynns 2015): [ Germany,] Brandenburg, Neuruppin, an dem Waldwege zwischen Rottstiel und dem “ Stern ” auf von einer schwachen Humusdecke überlagertem Sandboden, 24 July 1897, C. Warnstorf, C-M- 9394! Isolectotype: PC 0132600! Syntypes: [ Poland,] in einer etwas schwächeren, bei Swinemünde, R. Ruthe; [ Germany,] bei Schönebeck a. d. Elbe, Aug. 1892, Fromm. Apparent topotypes: [ Germany,] Neuruppin, Osterwald auf Sand, zwischen Rottstiel und dem Stern, 22 July 1900, C. Warnstorf, S-B 160601; Sand., auf Waldboden, bei Rottstiel, July 1898, C. Warnstorf, PC 0132601!

Description.

Plants medium-sized, light green to yellow green, glossy; stems 2.0– 2.5 cm; two types of leaves: symmetrical and asymmetrical, the symmetrical ones: ovate-lanceolate, concave, with two rounded sides, rounded symmetric, asymmetrical ones: ovate-lanceolate, concave, with one rounded and one flattened side, both types of leaves identical in size, 2.0–2.5 × 0.8–1.3 mm (Fig. 2 A View Figure 2 ); the apex acuminate, denticulate; laminal cells 100–130 × 15–20 μm at midleaf (Fig. 2 C View Figure 2 ), cell areolation loose; decurrencies long, consisting of 3–5 rows of rounded and inflated cells; capsule inclined.

Distribution.

Europe ( Czech Republic, Germany, Poland), but the range of this taxon still requires research.