On the cover:

Ornithogalum sibthorpii (Asparagaceae) an early flowering species, with populations scattered across the Balkan Peninsula and Turkey was overlooked in Croatia. Currently known localities in Croatia are provided and detailed morphological and leaf anatomy described by Rat and Bogdanović (this issue, 56-63).

Published: 31 March 2021

Silver nanoparticles affect germination and photosynthesis in tobacco seedlings

1-11 Renata Biba, Mirta Tkalec, Petra Cvjetko, Petra Peharec Štefanić, Sandra Šikić, Dubravko Pavoković, Biljana Balen

Breaking of dormancy in the narrow endemic Jasione supina Sieber subsp. supina (Campanulaceae) with small seeds that do not need light to germinate

12-17 Gürcan Güleryüz , Serap Kırmızı , Hülya Arslan, Elif Güleryüz

The synergistic effects of hydro and hormone priming on seed germination, antioxidant activity and cadmium tolerance in borage

18-28 Parisa Sheikhzadeh, Nasser Zare, Fatemeh Mahmoudi

Plant development, gas exchanges and pigments of Mesosphaerum suaveolens submitted to osmoconditioning and saline stress

29-34 Francisco Romário Andrade Figueiredo, Jackson Silva Nóbrega, Reynaldo Teodoro de Fátima, Toshik Iarley da Silva, Rodrigo Garcia da Silva Nascimento, Maria de Fátima de Queiroz Lopes, Thiago Jardelino Dias, Riselane de Lucena Alcântara Bruno

Expression of genes for selected plant aminoacyl-tRNA synthetases in the abiotic stress

35-42 Jurica Baranašić, Anita Mihalak, Ita Gruić-Sovulj, Nataša Bauer, Jasmina Rokov-Plavec

Phenolic compounds in two subspecies of Drypis spinosa L. (Caryophyllaceae) in Croatia

43-47 Dario Kremer, Iztok Jože Košir, Tanja Potočnik, Nikolina Rogulj, Karla Načinovic, Marko Randić, Siniša Srečec, Renata Jurišić Grubešić

Morphological and chemical evidence of Teucrium × rohlenae K. Malý (Lamiaceae), a new hybrid in Croatia

48-55 Miloš Zbiljić, Branislava Lakušić, Mirjana Marčetić, Sandro Bogdanović, Dmitar Lakušić

Ornithogalum sibthorpii Greuter (Asparagaceae), a species overlooked in Croatia

56-62 Milica Rat, Sandro Bogdanović

Taxonomical and chorological remarks on the Mediterranean Poa maroccana (Poaceae) and the first record in Italy from the Sicilian flora

63-73 Salvatore Brullo, Cristian Brullo, Salvatore Cambria, Gianmarco Tavilla, Gianpietro Giusso del Galdo, Sandro Bogdanović

An analysis of research into urban flora and vegetation in Southeast Europe

74-81 Slobodan Jovanović, Milan Glišić

Crocus adamioides (Iridaceae) in the Bulgarian flora

82-90 Tsvetanka Raycheva, Kiril Stoyanov, Samir Naimov, Elena Apostolova-Kuzova

Anatomical investigations of the Turkish critically endangered species: Achillea sivasica Çelik et Akpulat (Asteraceae)

91-98 Mehmet Tekin, Şeyda Akdere

An ecophysiological study of some coastal dune species of Zemmouri El Bahri (Algeria)

99-105 Sadjia Rabhi, Réda Djebbar, Aicha Belkebir

Carex phyllostachys (Cyperaceae), a new species in Croatia

106-111 Ana Terlević, Jacob Koopman, Helena Więcław , Ivana Rešetnik, Sandro Bogdanović

Phototrophic biofilms and microbial mats from the marine littoral of the central Mediterranean

112-116 Gabrielle Zammit, Sarah Schembri, Mark Fenech

The Croatian National Diatom Collection

Marija Gligora Udovič, Zrinka Ljubešić