Stipa barbata subsp. barbata Desfontaines 1798

Stipa barbata subsp. barbata Desf. (Figure 59 (1)). Lemma dorsal surface: Characterised by long rectangular cells of (17–)25–50(–60) × 4–8 µm, smooth walls, up to 3 µm thick, linear distribution. Short cells: Silica cells of 7–11 × 12–20 µm, rectangular to circular, occasionally oblong, frequent, in pairs or threes with a cork cell, situated between long cells, never solitary; Cork cells 6–11(–15) × 5–9 µm, circular to reniform, sporadic, always with a silica cell. Spines and hairs: Hooks circular to obovate base (6–)8– 17(–24) × 4–8(–9) µm high, regularly distributed between long cells, in pairs or threes with silica, cork or additional hook cells, frequently solitary, density 10–12 hooks/ 100 µm 2; Prickles circular base 20–34 µm, up to 140 µm long, irregularly distributed in dorsal area, and up to 3 prickles/100 µm 2; Macro-hairs of circular base 20–35(–38) µm and 800–1100(–1300) µm long, irregularly distributed. Lemma apical surface: Characterised by long cells identical to those of the dorsal area. Short cells: Silica and cork cells of similar morphology, size and distribution to those of dorsal area, less frequently cork cells. Spines and hairs: Hooks circular base frequent, less obovate, equal in size and distribution to dorsal area, denser than on the dorsal area 14–17 hooks/100 µm 2; Prickles equal size and morphology to dorsal base and up to 130 µm long, distributed at middle of apex; Macro-hairs similar to those of dorsal area, to 1700 µm long, often reaching 1000 µm in length, located at distal part of apex. Material studied: Morocco: Agadir Taliwine, Melloul, -781524/3026969, 1740 m.s.a.l., 21-II-2019, M. Chambouleyron (ECWP s.n. (HSSrf 290)); Air Bri Makhar, 0502717/3756414, 1630 m.s.a.l., 1-VI-2012, M. Chambouleyron (ECWP s.n. (HSSrf 65).