Contributors. E. Fuertes and G. OlivánAndorra. Pirineos Occidentales: Val d´Juclar, Estanys de Juclar, plataforma de trampales y turberas, alt. 2000–2100 m a.s.l.. UTM 31CH80, 17 October 2001, leg....

Sphagnum jensenii, S. fallax var. isoviitae, and S. pylaesii were found as new to Turkey and Southwest Asia following a bryological field trip to the Giresun province of Turkey. Sphagnum fallax var. isoviitae was also new to Asia. Descriptions, illustrations, world distribution, ecology, and comparisons with related species are presented.

Anzer vadisi ve çevresinin briyofit çeşitliliğinin ortaya çıkarılması amacıyla araştırma alanından Haziran ve Temmuz 2019 aylarında 33 istasyondan briyofit örnekleri toplanmıştır. Örneklerin incelenmesi sonucunda, 69 familya ve 135 cinse ait 286 karayosunu ve 52 ciğerotu taksonu olmak üzere toplamda 338 briyofit taksonu (tür, alttür ve varyete) tanımlanmıştır. Teşhis edilenler arasından Scapania obscura (Arn. & Jens.) Schiffn., Sphagnum fimbriatum Wilson, Sphagnum papillosum Lindb., Dicranella staphylina H.Whitehouse, ve Pohlia lescuriana (Sull.) Ochi, taksonlarının Türkiye’den ikinci kez kaydı verilmiştir. Ayrıca Rize'den ilk defa kaydı verilen briyofit taksonu sayısı 88 (9' u ciğerotu, 79' u karayosunu)’dir. Yapılan bu çalışma sonucunda Rize ili için yeni olan 88 taksonun eklenmesi ile Rize ilinden tespit edilmiş olan briyofit taksonu sayısı 424 olmuştur.

During the recent bryofloristic studies in the Karçal mountain of the Artvin region (Caucasus), north of Turkey’s East Black Sea region, Trematodon ambiguus and Ptychostomum cyclophyllum were found as new species to Turkey and Southwest Asia. Descriptions, illustrations, new localities, geographic distribution, ecological characteristics, and comparisons with morphologically similar taxa were provided.

The aim of the present study was to determine the chemical analysis, antimicrobial and antioxidant effects of the Eurhynchium angustirete (Broth.) and Isothecium alopecuroides (Lam. Ex Dubois) essential oil obtained by distillation method (Clevenger apparatus hydrodistillation). Obtained volatile oils were identified by gas chromatography-mass spectrometry (GC/MS) which revealed the presence of twenty-two components analyzed in the essential oil of E. angustirete representing 95.7% of the total identified compounds and twenty compounds were determined in the essential oil of I. alopecuroides representing 94.3% of the total identified compounds. Trans-pinocarveol and myrtenal as major constituents were 23.0% and 14.1% in E. angustirete and the main components were: biformene (9.9%), α-pinene (9.1%), bornyl acetate (8.4%) in I. alopecuroides. The essential oils from E. angustirete and I. alopecuroides showed higher metal-ion chelating activities which were 65.93±0.39% and 31.01±2.75, respectively. There was no significant difference results DPPH activity of essential oils 16.8±6.98 and 22.8%±8.91, respectively. The antimicrobial activity was investigated by microdiution method. The isolated essential oils were showed effective antimicrobial activities against Escherichia coli ATCC25922, Enterococcus faecalis ATCC29212, Staphylococcus aureus ATCC25923, Pseudomonas aeruginosa ATCC2785 and Streptococcus mutans. Antimicrobial effect values were found ranging of 90.76-95.38%. According to antimicrobial effect value against to microorganism, essential oil of E. angustirete was higher than I. alopecuroides.