On the genus Oncophorus (Rhabdoweisiaceae, Bryophyta) in Russia

O. M. Afonina, O. D. Dugarova, V. E. Fedosov, D. Ya. Tubanova

DOI: https://doi.org/10.31111/nsnr/2023.57.1.123

Full article

Abstract

Revision of the genus Oncophorus s. str. in Russia based on throughout study of extensive materials kept in LE, MAG, MHA, MW, IRK, KRABG, NSK, PTZ and UUH was carried out. The genus is represented in Russia by two species, O. integerrimus and O. virens. New subspecies, O. virens subsp. minor has been revealed and described based on integrative morphological and molecular (plastid rps4 gene with trnS-rps4 spacer, plastid, trnL-trnF region and nuclear ITS1-2 region) studies. It differs from O. virens subsp. virens in very dense (vs. loose) tufts, smaller plant size (1–3 cm vs. (2)5–8 cm), smaller leaves [(1.3)1.7–2.1 × (0.4)0.6–0.7 mm vs. 2.4–4.0 × 0.6–1.0 mm)] and smaller mid-leaf cells [(4.3)5.0–9.5(15.0) × (7.6)8.9–11.4(13.0) µm vs. 8–17(20) × 6–10 µm]. Descriptions of O. integerrimus and both subspecies of O. virens together with their photomicrographs, graphic illustrations and a key for their differentiation are provided. Their distribution in Russia is discussed and mapped.

Keywords: Oncophorus integerrimus, Oncophorus virens, Oncophorus virens subsp. minor, distribution, mosses, taxonomy, Russia

Section: Bryophytes

How to cite

Afonina O. M., Dugarova O. D., Fedosov V. E., Tubanova D. Ya. 2023. On the genus Oncophorus (Rhabdoweisiaceae, Bryophyta) in Russia. Novosti sistematiki nizshikh rastenii 57(1): 123–142. https://doi.org/10.31111/nsnr/2023.57.1.123

Received: 28 December 2022. Accepted: 14 March 2023. Published: 2 April 2023

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Supplementary materials

Supplementary file.
NSNR_2023_57(1)_Afonina_et_al_Supplement