Plagiothecium decursivifolium Kindb.

Wolski, Grzegorz J., 2025, The genus Plagiothecium (Plagiotheciaceae) in Europe — current state of knowledge, checklist and key to taxa, PhytoKeys 253, pp. 67-102 : 67-102

publication ID	https://doi.org/10.3897/phytokeys.253.142268
DOI	https://doi.org/10.5281/zenodo.14969280
persistent identifier	https://treatment.plazi.org/id/AF3BED5A-6E7B-5001-A8C8-B714BD77C1AA
treatment provided by	PhytoKeys by Pensoft
scientific name	Plagiothecium decursivifolium Kindb.
status

Treatment

Plagiothecium decursivifolium Kindb. View in CoL in Macoun & Kindberg, Catalogue of Canadian Plants, Part VI, Musci 277. 1892.

= Plagiothecium curvifolium fo. julaceum Culm. in E. Bauer, Musci Europaei Exsiccati 27: 1307. 1915. Lectotype (designated by Wolski et al. 2022 a): Switzerland, auf Tannenwurzeln ini der Nähe der oberen Waldgrenze, Burgfeld ob Beatenberg, Kanton Bern, 1630–1700 m, 31 July 1912, Musci eur. exs. 1307, P. Culman, C-M- 9120! Isolectotype: MO 3974490!

Type material.

Lectotype (designated by Wolski et al. 2022 a): Canada, Ontario, Belleville, on cedar ( Thuja occidentalis ) stump in a swamp, 5 miles west of Belleville, Ont. J. Macoun, N. C. Kindberg, PC 0132686 ! Kindberg Canadian types should be at S with duplicates at CANM

Description.

Plants medium-sized to small, yellow to yellow-green; stems 0.5–1.5 cm long; leaves gently julaceous and imbricate, folded, ovate to ovate-lanceolate, asymmetrical, concave, often cracked at the base, 1.3–2.5 × 0.4–1.8 mm (Fig. 10 A View Figure 10 ); the apex acuminate, not denticulate or rarely with one tooth; cells linear-vermicular, 95–190 × 6–10 μm at midleaf (Fig. 10 D View Figure 10 ), cell areolation tight; decurrencies of 3–5 rows of rectangular, quadrate, often inflated cells forming semi distinct auricles.

Distribution.

Asia ( China); Europe ( Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Latvia, Netherlands, Poland, Slovakia, Sweden, Switzerland); North America ( Canada).