Agrostis barceloi

HABIT Perennial; caespitose. Basal innovations intravaginal. Culms erect; 10–40 cm long; 2 -noded. Lateral branches lacking. Leaf-sheaths mostly shorter than adjacent culm internode; keeled; smooth; glabrous on surface. Ligule an eciliate membrane; 1.7–2 mm long; erose; truncate, or acute. Leaf-blades filiform; conduplicate; 2–18 cm long; 0.2–0.5 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 2.5–8 cm long; 0.5–1 cm wide. Primary panicle branches appressed; 1–5 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2.7–3.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 2.7–3.1 mm long; 1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.5–3.2 mm long; 1.4–1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma oblong; 1.8–2.1 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins excurrent. Lemma surface scaberulous. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.2–0.25 way up back of lemma; geniculate; 3.7–4.2 mm long overall; with twisted column. Palea orbicular; 0.5–0.8 mm long; 0.25–0.33 length of lemma; hyaline.

FLOWER Lodicules 2; 0.4–0.6 mm long; membranous. Anthers 3; 0.7–1.2 mm long.

FRUIT Caryopsis with adherent pericarp; 1.7–1.9 mm long.

DISTRIBUTION Europe: southwestern.

NOTES Aveneae. Saez & Rosello 2004.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.