Two rare Scapania species, S. calcicola and S. glaucocephala, are recorded for the first time for Turkey during bryofloristic studies in the Black Sea region, north of Turkey. The record of S. glaucocephala is new to Southwest Asia and to the Mediterranean bryoflora and located at the southern limit of its range. Morphological descriptions and microphotographs of Turkish specimens, data on their distinctive features, ecology and distributions are provided.

In this study, three deadwood-dependent liverwort species (Calypogeia suecica (Arnell & J.Perss.) Müll. Frib., Crossocalyx hellerianus (Nees ex Lindenb.) Meyl. and Scapania apiculata Spruce) are reported upon from forests of North-western Anatolia for the first time for Turkey and Southwest Asia. The results concluded an increasing number of Scapania species to 17, Calypogeia species to six for these areas. Also, Crossocalyx is a new genus record for Turkey and Southwest Asia. All three new records are approximately at the southernmost limit of these species' distribution of Western Asia; also records of C. hellerianus and S. apiculata are at the southern limit of their Mediterranean distribution. Morphological descriptions, microphotographs, ecological aspects, distinctive taxonomical features, and Turkish conservation suggestions of the new records are presented. In addition, some remarkable deadwood-dependent bryophyte species (Buxbaumia viridis (Moug. ex Lam. & DC.) Brid. ex Moug. & Nestl., Fuscocephaloziopsis lunulifolia (Dumort.) Váňa & L.Söderstr. and Lophozia guttulata (Lindb. & Arnell) A.Evans.) in Turkey are discussed.

En tr With this study, Riccia cavernosa and Physcomitrella patens secondly reported from Eflani district, Karabük province in Turkey. While Riccia cavernosa was recorded for the first time in Sinop-Boyabat, Physcomitrella patens was previously listed in Rize Bryophyte Checklist. Latter species is reported for the first time with detailed locality information from Turkey in this paper. Bu çalışma ile Riccia cavernosa ve Physcomitrella patens türleri Türkiye’den ikinci kez rapor edilmektedir. Riccia cavernosa’nın ilk defa Sinop-Boyabat’tan kayedilmişken, Physcomitrella patens ise Rize Briyofit Kontrol Listesinde yer almıştır. Ikinci tür bu makalede ilk defa Türkiye’den detaylı lokalite bilgisi ile rapor edilmektedir.

This study investigates the bryophyte biodiversity of Harmankaya Waterfalls Nature Park in Zonguldak, Türkiye, an area with critical biological significance for hornworts and other bryophyte species. Fieldwork conducted in 2023-2024 documented bryophyte diversity across three environmental zones based on substrate-water interaction levels. A total of 164 bryophyte taxa were identified, including 3 hornwort, 39 liverwort, and 122 moss taxa, with 32 new records for the Zonguldak bryoflora. Bryodiversity was assessed using the Shannon diversity index, revealing that Zone II, characterized by a mix of aquatic, semi-aquatic, and terrestrial taxa, exhibited the highest diversity. This study highlights the need for enhanced conservation strategies for Harmankaya due to increasing anthropogenic pressures from recreational activities, underscoring the importance of reevaluating its protected status.

Eflani district of the Karabük province selected as the study area is located Western Black Sea Region. Three field excursions have been made in different seasons between October 2017 to April 2019 in the study area. Bryophyte specimens were collected from 30 different habitats and ecosystems such as steppes, forests, riparian, farmlands, wetlands etc. vegetation. Approximately 500 specimens have been collected, examined under stereo and light microscopes, and identified using related literature. 156 specific and infraspecific bryophyte taxa (15 liverworts and 141 mosses) were found in the visited localities. Among them, 21 taxa were reported from Karabük province for the first time and Lewinskya acuminata (H.Philib.) F.Lara, Garilleti & Goffinet was new for A2 grid square. These taxa were listed according to taxonomic hierarchy with locality, habitat, and substrate information.

In this study, antimicrobial and antibiofilm activities of extracts obtained from the moss Rhynchostegium riparioides using ethanol, methanol, n-hexane, and water solvents were evaluated. Standard strains, food isolates, and clinical isolates, including multidrug-resistant strains, were utilized in the tests. The efficacy of the extracts was determined using disk diffusion and minimum inhibitory concentration (MIC) methods, and their phytochemical profiles were analyzed by Gas Chromatography-Mass Spectrometry (GC-MS). The n-hexane extract showed the highest antimicrobial activity, demonstrating strong effects even at the lowest tested concentrations. This extract was predominantly composed (79.29%) of tris(2,4-di-tert-butylphenyl) phosphate. The methanol extract exhibited broad-spectrum activity, notably effective against Enterococcus faecalis and Escherichia coli, and major compounds identified included neophytadiene (21.55%), palmitic acid (18.65%), and linolenic acid (10.45%). In the antibiofilm assays, a strong inhibition of up to 95% was observed, particularly against Listeria innocua. These findings highlight the potential of the n-hexane extract for development as a natural antibiofilm agent. The findings underscore the potential for developing the n-hexane extracts as natural antibiofilm agents.