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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Gymnopogon legrandii
HABIT Perennial. Rhizomes elongated. Culms erect; 20–45 cm long. Leaves distichous. Leaf-sheaths without keel, or keeled; outer margin glabrous. Leaf-sheath oral hairs lacking, or ciliate. Ligule a ciliate membrane; 0.3–0.4 mm long. Leaf-blade base broadly rounded. Leaf-blades 2–10 cm long; 2–6 mm wide; stiff. Leaf-blade midrib indistinct.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 5–9; borne along a central axis; ascending, or erect; unilateral; (4.5–)8–15(–17) cm long. Central inflorescence axis 5–10 cm long. Rhachis angular; scabrous on margins. Spikelet packing broadside to rhachis; distant.
Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels oblong.
STERILE SPIKELETS Basal sterile spikelets absent, or rudimentary.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 3.6–5.4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
GLUMES Glumes persistent; similar; exceeding apex of florets; gaping. Lower glume linear; (2.1–)2.9–4.8 mm long; 0.8–0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume linear; 3.6–5.4 mm long; 1.6–2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acuminate.
FLORETS Fertile lemma elliptic; 2.2–2.9 mm long; membranous; keeled; 3 -veined. Lemma midvein eciliate, or pubescent. Lemma margins ciliate. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; 2.2–3.8(–4.5) mm long overall. Apical sterile florets 1–2 in number; barren; rudimentary, or linear; 0–1.5 mm long. Apical sterile lemmas awned; 1 -awned. Apical sterile lemma awns 0.5–3 mm long.
FLOWER Anthers 3; 0.7–1.1 mm long.
FRUIT Caryopsis with adherent pericarp; 1.5–1.8 mm long.
DISTRIBUTION South America: Brazil and southern South America.
NOTES Cynodonteae. Smith.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
