Poaceae

Lygeum Loefl. ex L.

First published in Gen. Pl., ed. 5.: 27 (1754)
This genus is accepted
The native range of this genus is Medit.

Descriptions

nonem

Morphology General Habit
Perennial. Rhizomes short. Culms 25-75 cm long. Ligule an eciliate membrane. Leaf-blades filiform; coriaceous; stiff.
Morphology Reproductive morphology Inflorescences
Inflorescence comprising only a few spikelets; subtended by a spatheole; enclosed. Spatheole lanceolate; chartaceous. Spikelets solitary.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; without rhachilla extension. Spikelets ovate; urceolate; laterally compressed; 30-45 mm long; falling entire. Spikelet callus bearded.
Fertile
Spikelets comprising 2-3 fertile florets; without rhachilla extension. Spikelets ovate; urceolate; laterally compressed; 30-45 mm long; falling entire. Spikelet callus bearded.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes both absent or obscure.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; coriaceous; much thinner above; without keel; 7-9 -veined. Lemma surface villous. Lemma margins fused below to those of opposing floret forming an urn. Lemma apex caudate. Palea 2 length of lemma.
Morphology Reproductive morphology Flowers
Lodicules absent. Anthers 3. Stigmas 1; papillose.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; oblong. Embryo 0.25-0.33 length of caryopsis. Hilum linear; 2 length of caryopsis.
Distribution
Europe, or Africa.
[GB]

Sources

  • 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