On the cover:

Some rare and newly discovered Carex taxa from Croatia, are reported by Koompan et al. (pp. 35-47)

Published: 30 March 2026

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Preface

The Celebration of the first Century of Acta Botanica Croatica (1925–2025)

1-3 Mirta Tkalec, Nenad Jasprica, Zrinka Ljubešić

Articles

Molecular and morpho-physiological analyses revealed inter- and intra-generic diversity of filamentous cyanobacteria from saline/alkaline soils

10.37427/botcro-2026-005
4-14 Hillol Chakdar, Shaloo Verma, Ritu Vishwakarma, Arpan Bhowmik, Samadhan Yuvraj Bagul, Nahid Siddiqui, Vellaichamy Mageshwaran, Anil Kumar Saxena

Molecular and morphological characterization of diatoms related to dense mucilage formation in Turkish coastal waters

10.37427/botcro-2026-007
15-24 Rabia Sezgin, Muharrem Balcı, Turgay Durmus, Neslihan Balkıs-Ozdelice, Mustafa Sarı

Genetic variability of Linnaea borealis – remnant of Eastern-Southeastern Alpine populations indicates a strong bottleneck and in situ glacial survival

10.37427/botcro-2026-001
25-34 Nataša Pipenbaher, Mitja Kaligarič, Sonja Škornik, Danijel Ivajnšič, Tina Ternjak, Metka Šiško

Notes on rare and newly found Carex taxa (Cyperaceae) in Croatia

10.37427/botcro-2026-006
35-47 Jacob Koopman, Helena Więcław, Janez Mihael Kocjan, Sandro Bogdanović

The North American weed Amaranthus tuberculatus (Amaranthaceae) new to Portugal: previously overlooked or spreading rapidly?

10.37427/botcro-2026-010
48-54 Filip Verloove

First records of the invasive weed of Union Concern Cenchrus setaceus (Poaceae) in Crete (Greece)

10.37427/botcro-2026-002
55-59 Filip Verloove

A phytosociological description of a new plant association of the Saturejion subspicatae alliance in southern Croatia (SE Europe)

10.37427/botcro-2026-008
60-67 Marija Pandža, Nenad Jasprica, Milenko Milović, Jagoda Karađole

Croceous glands are oil secretory cavities in fruits of Senega longicaulis (Polygalaceae)

10.37427/botcro-2026-004
68-73 Layse K. C. Lopes, Ana C. A. A. Dias, José Floriano B. Pastore, Diego Demarco

The allelopathic effects of exogenous pyrogallol on antioxidant metabolism and leaf gas exchange in arsenic-stressed maize (Zea mays L.) seedlings

10.37427/botcro-2026-009
74-82 Cansu Altuntaş, Nurşen Aksu Kalmuk, Abidin Gümrükçüoğlu

Short communications

First record of Spiraea hypericifolia subsp. hypericifolia (Rosaceae) in Kosovo

10.37427/botcro-2025-019
83-86 Naim Berisha

First records of three Hericium species (Basidiomycota) in Kosovo

10.37427/botcro-2025-022
87-89 Qëndrim Ramshaj, Katerina Rusevska, Slavica Tofilovska, Mitko Karadelev

First record of Lindernia dubia (Linderniaceae) in Georgia, and note on L. procumbens in the South Caucasus

10.37427/botcro-2026-003
90-92 Vasily S. Vishnyakov

Social News

Celebration of the 150th Anniversary of the Division of Botany, Department of Biology, Faculty of Science, University of Zagreb

93-94 Suncica Bosak

Professor Ivan Regula – on the occasion of his ninetieth birthday

95-96 Željka Vidaković-Cifrek