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2020
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| Online Access: | https://doi.org/10.5281/zenodo.15624938 |
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| author | Crespo, Manuel B. Alonso, Ángeles Martínez-Azorín, Mario |
| author_facet | Crespo, Manuel B. Alonso, Ángeles Martínez-Azorín, Mario |
| contents | <p><b>Identification key to the <i>Melinis repens</i> aggregate</b></p><p>1. Spikelets (5−) 7−12 mm long. Internode between glumes (0.5−)0.7−1.7(−2) mm long; upper glume and lemma of the lower floret with a long apical beak up to 5.5 mm, the upper glume with prominent ribs and an apical awn 7−14.5 mm long.... <i>M. grandiflora</i></p><p>− Spikelets 2−5 mm long. Internode between glumes 0.1−0.8 mm long; upper glume and lemma of the lower floret with a short apical beak up to 2.5 mm long or beakless, the upper glume submuticous or with an apical awn up to 7 mm long.........................2</p><p>2. Hairs of the leaf ligule 0.5−0.8 mm long. Panicle mostly cylindrical, dense, contracted. Internode between glumes (0.5−) 0.6−0.8 mm long; upper glume and lemma of the lower floret cartilaginous to subcoriaceous, with prominent ribs; the upper glume submuticous or with a short apical awn up to 0.1 mm long......................................................................................... <i>M. maroccana</i></p><p>− Hairs of the leaf ligule 0.8−1.6 mm long. Panicle mostly ovoid, loose, spreading. Internode between glumes 0.1−0.5(−0.6) mm long; upper glume and lemma of the lower floret membranous to slightly cartilaginous, with inconspicuous to slightly prominent ribs; the upper glume with a short apical awn 0.7−7 mm long ..........................................................................................................3</p><p>3. Stems usually lower, 25−120(−150) cm tall. Spikelets often dark brownish to pale-yellowish, with subpatent, dense and long hairs (exceeding ca 5 mm the spikelet apex); beak of the upper glume up to 1.7 mm long or absent.................. <i>M. repens</i> subsp. <i>repens</i></p><p>− Stems usually robust, (60−) 100−160 cm tall. Spikelet often dark olive-green (sometimes pale-yellowish), with appressed, short and suberect hairs (not exceeding the spikelet apex) or occasionally subglabrous; beak of the upper glume up to 2.5 mm long or absent........................................................................................................................................................ <i>M. repens</i> subsp. <i>nigricans</i></p> |
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| publishDate | 2020 |
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| spellingShingle | Melinis repens Zizka 1988 Crespo, Manuel B. Alonso, Ángeles Martínez-Azorín, Mario Biodiversity Taxonomy Plantae Tracheophyta Liliopsida Poales Poaceae Melinis Melinis repens <p><b>Identification key to the <i>Melinis repens</i> aggregate</b></p><p>1. Spikelets (5−) 7−12 mm long. Internode between glumes (0.5−)0.7−1.7(−2) mm long; upper glume and lemma of the lower floret with a long apical beak up to 5.5 mm, the upper glume with prominent ribs and an apical awn 7−14.5 mm long.... <i>M. grandiflora</i></p><p>− Spikelets 2−5 mm long. Internode between glumes 0.1−0.8 mm long; upper glume and lemma of the lower floret with a short apical beak up to 2.5 mm long or beakless, the upper glume submuticous or with an apical awn up to 7 mm long.........................2</p><p>2. Hairs of the leaf ligule 0.5−0.8 mm long. Panicle mostly cylindrical, dense, contracted. Internode between glumes (0.5−) 0.6−0.8 mm long; upper glume and lemma of the lower floret cartilaginous to subcoriaceous, with prominent ribs; the upper glume submuticous or with a short apical awn up to 0.1 mm long......................................................................................... <i>M. maroccana</i></p><p>− Hairs of the leaf ligule 0.8−1.6 mm long. Panicle mostly ovoid, loose, spreading. Internode between glumes 0.1−0.5(−0.6) mm long; upper glume and lemma of the lower floret membranous to slightly cartilaginous, with inconspicuous to slightly prominent ribs; the upper glume with a short apical awn 0.7−7 mm long ..........................................................................................................3</p><p>3. Stems usually lower, 25−120(−150) cm tall. Spikelets often dark brownish to pale-yellowish, with subpatent, dense and long hairs (exceeding ca 5 mm the spikelet apex); beak of the upper glume up to 1.7 mm long or absent.................. <i>M. repens</i> subsp. <i>repens</i></p><p>− Stems usually robust, (60−) 100−160 cm tall. Spikelet often dark olive-green (sometimes pale-yellowish), with appressed, short and suberect hairs (not exceeding the spikelet apex) or occasionally subglabrous; beak of the upper glume up to 2.5 mm long or absent........................................................................................................................................................ <i>M. repens</i> subsp. <i>nigricans</i></p> |
| title | Melinis repens Zizka 1988 |
| topic | Biodiversity Taxonomy Plantae Tracheophyta Liliopsida Poales Poaceae Melinis Melinis repens |
| url | https://doi.org/10.5281/zenodo.15624938 |