Stipa barbata subsp. brevipila F. M. Vazquez & Devesa 1997

Stipa barbata subsp. brevipila (Coss. & Durieu) F.M. Vázquez & Devesa (Fig. 60 (2)). Lemma dorsal surface: Characterised by long rectangular cells of (18–)22–40(–43) × 18–21 µm, smooth to thinly undulated walls, 4–7 µm thick, linear distribution. Short cells: main Silica cells of 8–15 × 12–16 µm, circular to oblong, frequently in pairs or threes with cork or hook cells, situated between long cells, never solitary; Cork cells 5–10 × 14–18 µm, sub-elliptic to oblong, sporadic, always with a silica cell. Spines and hairs: Hooks circular to quadrangular base (7–)8–11(–12) × 6–9(–10) µm high, regularly distributed between long cells, in pairs or threes with silica, cork or additional hook cells, frequently solitary, density 9–12 hooks/ 100 µm 2; Macro-hairs 280–550(–700) µm long, circular base 12–15 µm, 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 and thinner 27–50(–55) × 8–12(–14) µm. Short cells: Silica cells equal in size, morphology and distribution but less abundant than long cells at the dorsal part; Cork cells equal to those of dorsal area, but occasional. Spines and hairs: Hooks equal in size, distribution, and morphology, denser than in dorsal area (12–14 hooks/100 µm 2); Prickles circular to ovate base 20–22 × 18–23 µm and 20–45(–50) µm long, distributed at upper apex, up to 2 prickles/100 µm 2; Macro-hairs of similar morphology and size, distributed throughout, more frequent at distal part of apex. Material studied: Morocco: Azilal, Takcat, 1980 m.a.s.l., 9-VI-2021, M. Chamboleyron, ECWP n.n.;)); Enjil, 20-VI-2005, M. Chambouleyron (ECWP s.n. (HSSrf 201)).