Further insights into the Stellaria media aggregate (Caryophyllaceae, Alsinoideae, Alsineae) in Africa: first reports of S. ruderalis in North Africa and S. cupaniana in Tunisia, with nomenclatural notes on the name Alsine cupaniana Author Mokni, Ridha El 0000-0003-3849-1039 Department of Pharmaceutical Sciences ‘ A’, Laboratory of Botany, Cryptogamy and Plant Biology, Faculty of Pharmacy of Monastir, Avenue Avicenna, University of Monastir, Monastir- 5000, Tunisia & Department of Forestry, Laboratory of Forest Ecology, National Research Institute of Rural Engineering, Water and Forests, IRESA, University of Carthage, Ariana- 2080, Tunisia & ridhaelmokni @ yahoo. fr; https: // orcid. org / 0000 - 0003 - 3849 - 1039 ridhaelmokni@yahoo.fr Author Guacchio, Emanuele Del 0000-0001-9349-1328 Department of Biology, University of Naples Federico II, Botanical Garden, via Foria 223, 80139 - Naples, Italy & emanuele. delguacchio @ unina. it; https: // orcid. org / 0000 - 0001 - 9349 - 1328 emanuele.delguacchio@unina.it Author Iamonico, Duilio 0000-0001-5491-7568 Department of Environmental Biology, Piazzale Aldo Moro 5, 00185 - Rome, Italy & duilio. iamonico @ uniroma 1. it; https: // orcid. org / 0000 - 0001 - 5491 - 7568 text Phytotaxa 2023 2023-02-21 584 4 264 274 http://dx.doi.org/10.11646/phytotaxa.584.4.3 journal article 56515 10.11646/phytotaxa.584.4.3 a21ea1a3-f17e-4314-a66c-0065675e142a 1179-3163 7663397 Diagnostic key to the genus Stellaria taxa in Tunisia :—New records in bold: 1. Petals absent or very short (less than half of the sepal length), seeds ≤ 0.8 mm in diameter, pale yellowish to light brown, stamens 1–3(–5) ................................................................................................................................................................................. S. pallida 1’. Petals usually present (longer than half of the sepal length, sometimes equaling the calyx length), seeds> 0.8 mm in diameter, brown to dark-reddish-brown, stamens usually more than 3 (up to 10).............................................................................................2 2. Petals as long or slightly longer than the sepals; stamens (8–)10 ...................................................................................... S. neglecta 2’. Petals usually shorter than the sepals; stamens usually 3–5(–10) in S. ruderalis ) .............................................................................3 3. Seeds with conical tubercles about 0.14 mm long; flowers usually arranged in dense inflorescences............................. S. ruderalis 3’. Seeds with flat-topped or rounded tubercles or conical tubercles less than 0.10 mm long; flowers arranged in lax inflorescences... ............................................................................................................................................................................................................4 4. Stems with 1(–2) lines of hairs (alternate in successive nodes) or rarely glabrous; seeds 0.8–1.3 mm in diameter, with usually flattopped or rounded tubercles ................................................................................................................................................... S. media 4’. Stems pubescent all round; seeds 1.3–1.5 mm in diameter, with conical tubercles....................................................... S. cupaniana