A taxonomic revision of Stipeae s. l. tribe (Poaceae) in N Africa Author Vázquez, Francisco Maria 0000-0001-7826-8814 Agrarian Plant Biodiversity Area, Institute of Agricultural Research Finca “ La Orden- Valdesequera ” (CICYTEX), Ctra. A- 5, Km 372, ES- 06187 Guadajira, Badajoz, Spain & frvazquez 50 @ hotmail. com; https: // orcid. org / 0000 - 0001 - 7826 - 8814 frvazquez50@hotmail.com Author Márquez, Francisco 0000-0002-4420-2822 Agrarian Plant Biodiversity Area, Institute of Agricultural Research Finca “ La Orden- Valdesequera ” (CICYTEX), Ctra. A- 5, Km 372, ES- 06187 Guadajira, Badajoz, Spain & francisco. marquezga @ juntaex. es; https: // orcid. org / 0000 - 0002 - 4420 - 2822 francisco.marquezga@juntaex.es Author García, David 0000-0002-9593-6164 Agrarian Plant Biodiversity Area, Institute of Agricultural Research Finca “ La Orden- Valdesequera ” (CICYTEX), Ctra. A- 5, Km 372, ES- 06187 Guadajira, Badajoz, Spain & david. garciaa @ juntaex. es; https: // orcid. org / 0000 - 0002 - 9593 - 6164 david.garciaa@juntaex.es Author Oualidi, Jalal El 0000-0002-8085-1336 Agrarian Plant Biodiversity Area, Institute of Agricultural Research Finca “ La Orden- Valdesequera ” (CICYTEX), Ctra. A- 5, Km 372, ES- 06187 Guadajira, Badajoz, Spain & Institut Scientifique, Université Mohammed V, Agdal, 10106 Rabat, Morocco & Agrarian Plant Biodiversity Area, Institute of Agricultural Research Finca “ La Orden- Valdesequera ” (CICYTEX), Ctra. A- 5, Km 372, ES- 06187 Guadajira, Badajoz, Spain & jalaleloualidi 0 @ gmail. com; https: // orcid. org / 0000 - 0002 - 8085 - 1336 & Agrarian Plant Biodiversity Area, Institute of Agricultural Research Finca “ La Orden- Valdesequera ” (CICYTEX), Ctra. A- 5, Km 372, ES- 06187 Guadajira, Badajoz, Spain jalaleloualidi0@gmail.com text Phytotaxa 2025 2025-05-06 699 1 1 174 https://doi.org/10.11646/phytotaxa.699.1.1 journal article 10.11646/phytotaxa.699.1.1 1179-3163 16727528 Stipa almeriensis F.M. Vázquez ( Figure 56 (1)). Lemma dorsal surface: Characterised by long rectangular cells of (10–)16–65(–81) × 10–18(–24) µm, surface concave to flat, sinuous walls up to 9 µm thick, linear distribution. Short cells: Silica cells of 8–16 × 8–12 µm, circular to obovate, occasional and in pairs with hook or in threes with hook and cork cells, situated between long cells, never solitary; Cork cells (2–)3–8(–12) × 8–12 µm, fusiform to arched, with a silica cell, sporadic. Spines and hairs: Hooks with short points (blunt), circular base 10–20(–24) × <2 µm high, regularly distributed between long cells, in pairs or threes with silica and cork cells, occasionally solitary, density 12–18 hooks/100 µm 2 ; Macro-hairs circular base 3–(–7) µm, more than 600 µm long, regularly distributed in lines from mid-dorsal to base of lemma. Lemma apical surface: Characterised by long cells similar to those of the dorsal area, slightly longer up to 100 µm and up to 11 µm thick, sinuous wall. Short cells: Silica cells of 7–12 × 4–7 µm, similar distribution to those of dorsal part, but ovate to oblong morphology; Cork cells (2–)3–6 × 5–10 µm, oblong to sub-reniform (fewer), more frequent in the dorsal area. Spines and hairs: Hooks unpointed, ovate base 7–12(–14) × 5–9 µm, lower density than in dorsal area 6–10 hooks/100 µm 2 ; Prickles absent; Macro-hairs of obovate to circular base, located at margin leading up to apex. Awn base surface: Characterised by long cells of acute to oblique apex up to 290 µm in twisted, flat and angled parts. Short cells absent. Spines and hairs: Hooks absent; Prickles absent; Macro-hairs absent. Stomata paracytic (Parallel-sided subsidiary cells type ), of linear distribution in flat parts and in groove between twists, density 40–80(– 100) stomata/ 1 cm 2 . Material studied: Spain : Granada, Albuñuelas, sierra de Albuñuelas , 1356 msnm, 4-VI-2022 , L . Concepción, D. M . & F . M . Vázquez HSS80853 .