Plagiothecium sylvaticum var. sylvaticum (Brid.) Schimp.

Plagiothecium sylvaticum var. sylvaticum (Brid.) Schimp. View in CoL , Bryologia Europea 5: 192, 503. 1851.

≡ Hypnum sylvaticum Brid. , Muscologiae Recentiorum 2 (2): 53, 1 f. 5. 1801 ≡ Hypnum denticulatum var. sylvaticum (Brid.) Turner , Muscologiae Hibernicae Spicilegium 146. 1804 ≡ Stereodon sylvaticus (Brid.) Brid. , Bryologia Universa 2: 825, 1827 ≡ Hypnum denticulatum subsp. sylvaticum (Brid.) Boulay , Muscinées de la France, Mousses 85. 1884 ≡ Plagiothecium denticulatum subsp. sylvaticum (Brid.) Dixon , Student’s Handbook of British Mosses 437. 1896. Lectotype (the clump at the top of the sheet, selected by Iwatsuki 1970): [ Germany,] saltus Thuringicus in paluda, ex herb. Brid., B 31091501!

= Plagiothecium sylvaticum var. flavescens Warnst. View in CoL , Allegmeine Botanische Zeitschrift für Systematik , Floristik , Pflanzengeographie 5 (1): 34. 1899. Lectotype (designated here): [ Germany,] am Gaisriegl Dreitannenriegel , Bayr Wald , in Quellsümpfen, 1887, M. Lickleder, PC 0132583 ! syn. nov.

= Plagiothecium platyphyllum Mönk. View in CoL , Die Laubmoose Europas 866, 207 b. 1927 ≡ Plagiothecium sylvaticum var. platyphyllum (Mönk.) F. Koppe View in CoL , Abhandlungen und Berichte der Naturwissenschaftlichen Abteilung der Grenzmärkischen Gesellschaft zur Erforschung und Pflege der Heimat, Schneidemühl 1931 ≡ P. neglectum subsp. platyphyllum (Mönk.) Szafran View in CoL , Flora Polska Mchy (Musci) 2: 288, 1961, comb. inval. Type: Germany, bei Gersfeld in der Rohn 1906, ferner mir aus Thüringen unddem sächsischen Vogtlande unter anderer Bezeichnung bekannt geworden; The Czech Republic, ferner 1911 im Böhmerwalde bei Eisenstein gesammelt. Lectotype (designated by Wolski et al. 2024): Germany, Thüringien, Finsteres Loch, 26 June 1916, R. Schmidt, HBG!

= Plagiothecium ruthei fo. submersum Bizot , in sched. Basis: France, Vosges, Hohneck, immergé dans le lac du Frankenthal, M. Bizot 2910, PC 0132598!

= Plagiothecium ruthei var. rivulare Mayl. in sched. Basis: Switzerland, Uri, entre Göschenen et Andermatt, Sep., 1903, Thériot, J. J. Amann, PC 0132602! syn. nov.

Description.

Plants medium-sized to large, light green, dull, without metallic luster; leaves complanate, more or less flat, ovate, not imbricate and not julaceous, symmetrical, 2.0–3.0 × 1.0– 1.6 mm (Fig. 3 A View Figure 3 ); the apex acute and denticulate, often eroded; laminal cells 75–160 × 12.5–20 μm at midleaf (Fig. 3 D View Figure 3 ), cell areolation loose; decurrencies long, consisting of 3–4 rows of rounded and inflated cells; capsule inclined.

Distribution.

Asia ( China, Democratic People’s Republic of Korea, Georgia, Islamic Republic of Iran, Japan, Republic of Korea, Russian Federation, Turkey); Europe ( Andorra, Austria, Bulgaria, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Kosovo, Lithuania, Luxembourg, Montenegro, North Macedonia, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom); North America ( Canada, U. S. A.).