Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?

Re-assessment of the lectotype of Hypnum sylvaticum Brid. (≡ Plagiothecium sylvaticum (Brid.) Schimp.) (B 31 0915 01) showed that this specimen is characterised by dense, 6–10 cm long stems, pale green, yellowish-green to dark green and dull foliage; with complanate, ovate, not imbricate and not jul...

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Main Authors: Grzegorz J. Wolski, Mikołaj Latoszewski, William R. Buck
Format: Article
Language:English
Published: Pensoft Publishers 2024-04-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/118858/download/pdf/
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author Grzegorz J. Wolski
Mikołaj Latoszewski
William R. Buck
author_facet Grzegorz J. Wolski
Mikołaj Latoszewski
William R. Buck
author_sort Grzegorz J. Wolski
collection DOAJ
description Re-assessment of the lectotype of Hypnum sylvaticum Brid. (≡ Plagiothecium sylvaticum (Brid.) Schimp.) (B 31 0915 01) showed that this specimen is characterised by dense, 6–10 cm long stems, pale green, yellowish-green to dark green and dull foliage; with complanate, ovate, not imbricate and not julaceous, 2.0–3.0 × 1.0–1.6 mm leaves; acute and denticulate, often eroded apices; 75.0–160.0 × 12.5–20.0 μm laminal cells at mid-leaf, which form diagonal rows, and decurrencies of 3–4 rows of rectangular to square, inflated cells, forming distinct auricules. Thus, this specimen represents the characteristics of the taxon currently referred to as Plagiothecium platyphyllum Mönk. Taking into account the above and the fact that the name H. sylvaticum was published first, the correct name for the species is Plagiothecium sylvaticum. Whereas the later one (P. platyphyllum) is a synonym. Additionally, in this article for the name P. platyphyllum, a lectotype is designated and a new synonym (Plagiothecium ruthei f. submersum) is proposed for the resurrected P. sylvaticum.
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spelling doaj.art-928445a743fb4014a20cbb4ce7a474762024-04-14T06:30:31ZengPensoft PublishersPhytoKeys1314-20032024-04-0124110312010.3897/phytokeys.241.118858118858Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?Grzegorz J. Wolski0Mikołaj Latoszewski1William R. Buck2University of LodzUniversity of LodzInstitute of Systematic Botany, The New York Botanical GardenRe-assessment of the lectotype of Hypnum sylvaticum Brid. (≡ Plagiothecium sylvaticum (Brid.) Schimp.) (B 31 0915 01) showed that this specimen is characterised by dense, 6–10 cm long stems, pale green, yellowish-green to dark green and dull foliage; with complanate, ovate, not imbricate and not julaceous, 2.0–3.0 × 1.0–1.6 mm leaves; acute and denticulate, often eroded apices; 75.0–160.0 × 12.5–20.0 μm laminal cells at mid-leaf, which form diagonal rows, and decurrencies of 3–4 rows of rectangular to square, inflated cells, forming distinct auricules. Thus, this specimen represents the characteristics of the taxon currently referred to as Plagiothecium platyphyllum Mönk. Taking into account the above and the fact that the name H. sylvaticum was published first, the correct name for the species is Plagiothecium sylvaticum. Whereas the later one (P. platyphyllum) is a synonym. Additionally, in this article for the name P. platyphyllum, a lectotype is designated and a new synonym (Plagiothecium ruthei f. submersum) is proposed for the resurrected P. sylvaticum.https://phytokeys.pensoft.net/article/118858/download/pdf/
spellingShingle Grzegorz J. Wolski
Mikołaj Latoszewski
William R. Buck
Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?
PhytoKeys
title Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?
title_full Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?
title_fullStr Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?
title_full_unstemmed Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?
title_short Why Plagiothecium sylvaticum (Brid.) Schimp. (Plagiothecium, Plagiotheciaceae) has priority over P. platyphyllum Mönk.?
title_sort why plagiothecium sylvaticum brid schimp plagiothecium plagiotheciaceae has priority over p platyphyllum monk
url https://phytokeys.pensoft.net/article/118858/download/pdf/
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AT mikołajlatoszewski whyplagiotheciumsylvaticumbridschimpplagiotheciumplagiotheciaceaehaspriorityoverpplatyphyllummonk
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