Cynosurus Linnaeus 1753
| Main Authors: | Mokni, Ridha El, Verloove, Filip |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2022
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6354256 |
Daftar Isi:
- Identification key to the species of the genus Cynosurus in North Africa (translated and modified from Maire 1955; species endemic to North Africa preceded by an *) 1 Inflorescence linear, 3–16 cm long. Ligule very short, up to 1.5 mm long, truncate.........................................................................2 - Inflorescence ovoid to oblong, often (much) shorter. Ligule usually longer, oblong........................................................................3 2 Perennial. Inflorescence clearly lobed and rather lax, with lower branches often extended and distant. Lemmas of sterile florets long-attenuate, with awn 1.00– 1.25 mm long. Fertile spikelets with 1 or 2 florets, with aristate glumes and lemmas.................................................................................................................................................................................................................. * C. peltieri - Annual. Inflorescence dense, not or only obscurely lobed, with short branches. Lemmas of sterile florets shortly mucronate, not aristate. Fertile spikelets with at least 3 florets, with mucronate glumes and muticous lemmas.......................... * C. polybracteatus 3 Perennial, densely tufted....................................................................................................................................................................4 - Annual................................................................................................................................................................................................5 4 Leaves involute, tough, almost pungent, the upper as a continuation of the stem, the inflorescence therefore appearing lateral. Innovations tough and erect, as long as the stem..............................................................................................................* C. junceus - Leaves flat, soft, the upper not as a continuation of the stem. Innovations flaccid and shorter than the stem...............* C. balansae 5 Glumes and lemmas of sterile florets with a long (15–20 mm) awn, distinctly pink coloured at the base, 6–10 times as long as the body of the glume or lemma. Anthers ovoid, 0.4–0.7 mm............................................................................................... C. coloratus - Glumes and lemmas of sterile florets with a shorter awn (6–15 mm), 2–4 times as long as the body of the glume or lemma.Anthers oblong to linear, 0.7–2.5 mm..............................................................................................................................................................6 6 Glumes of the fertile florets as wide as the lemmas. Leaves 3–9 mm wide..................................................................... C. echinatus - Glumes of the fertile florets much narrower than the lemmas. Leaves 1–3 mm wide........................................................ C. elegans
- Published as part of Mokni, Ridha El & Verloove, Filip, 2022, Cynosurus peltieri (Pooideae, Poaceae), a poorly known species endemic to the Algerian-Tunisian terrestrial flora: further insights on its occurrence, IUCN Red List assessment, and lectotypification, pp. 292-300 in Phytotaxa 538 (4) on page 298, DOI: 10.11646/phytotaxa.538.4.3, http://zenodo.org/record/6340378