Stipa meridionalis F. M. Vazquez & Devesa. In 1997
Year: 2025
Type: other
Abstract: Stipa meridionalis F.M. Vázquez & Devesa (Figure 64 (2)). Lemma dorsal surface: Characterised by rectangular to quadrangular long cells of (10–)16–35(–42) × 21–26 µm, smooth walls more than 8–11 µm thick, thinner in the margins up to 20 µm wide, linear distribution. Short cells: main Silica cells of 8–12 × 14–18 µm, circular to oblong, sporadic in dorsal and frequent at margins, in all cases forming pairs with hook and occasionally cork cells, situated between long cells, never solitary; Cork cells 8–13 × 14–20 µm, oblong to elliptic, sporadic, in all cases with silica cells. Spines and hairs: Hooks circular to ovate base (16–)18–23 × 7–10(–11) µm high, regularly distributed between long cells, in pairs or threes with silica, cork or additional hook cells, more frequently solitary, density 10–15 hooks/100 µm 2; Prickles not observed; Macro-hairs 310–450(–540) µm long, circular base 12–15 µm, regularly distributed in rows from mid-dorsal area to lemma base. Lemma apex surface: Characterised by long cells similar to those of the dorsal area. Short cells: Silica cells equal in size, morphology, density and distribution; Cork cells equal in size, morphology, distribution and density to dorsal. Spines and hairs: Hooks circular equal in size, morphology and distribution, denser than at the dorsal area (16–20 hooks/100 µm 2); Prickles circular to ovate base 20–28(–30) × 18–25(–27) µm and 21–65(–83) µm long, distributed at the middle of apex, up to 2 prickles/100 µm 2; Macro-hairs of circular base 14–22 µm and up to 530 µm long, located at middle and distal parts of apex. Material studied: Morocco: Azrou, 1720 m.a.s.l., 26-VI-2020, M. Chamboleyron, ECWP n.n.; Jbel Mechkakour, 0498190/3643740, 1868 m.s.a.l., 25-V-2010, M. Chambouleyron (ECWP s.n. (HSSrf 226)).
Authors: Vázquez, Francisco Maria, Márquez, Francisco, García, David, Oualidi, Jalal El
Language: English
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6950068759
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