Poaceae
Lepturus

Lepturus perrieri A.Camus

First published in Bull. Soc. Bot. France 93: 87 (1946)
This species is accepted
The native range of this species is SW. Madagascar. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual; caespitose. Culms erect; 35-40 cm long. Culm-internodes smooth; distally glabrous. Leaf-sheaths mostly shorter than adjacent culm internode. Ligule a ciliolate membrane. Leaf-blades convolute; 7-11 cm long.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 1; single; smoothly terete; bilateral; 3.8-4 cm long. Rhachis fragile at the nodes; subcylindrical and excavated; 1-2 mm wide; glabrous on surface; glabrous on margins. Spikelet packing adaxial; opposite; regular; 2 -rowed. Rhachis internodes oblong; 5.2-5.5 mm long. Rhachis internode tip transverse; flat. Spikelets sunken; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets. Spikelets oblong; dorsally compressed; 4-4.2 mm long; falling entire; deciduous with accessory branch structures.
Fertile
Spikelets comprising 2 fertile florets. Spikelets oblong; dorsally compressed; 4-4.2 mm long; falling entire; deciduous with accessory branch structures.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes one the lower absent or obscure (but terminal spikelet with 2 glumes 5mm long); exceeding apex of florets; firmer than fertile lemma. Upper glume lanceolate; 4-4.2 mm long; coriaceous; without keels. Upper glume apex acute; muticous.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 3.2-3.5 mm long; coriaceous; without keel; 3 -veined. Lemma apex obtuse. Palea 1 length of lemma.
Distribution
Africa: western Indian ocean.
Reference
Leptureae. Camus 2007.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora.
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0