Festuca olympica

HABIT Perennial; caespitose. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Basal innovations intravaginal. Culms 12–21 cm long. Culm-internodes distally glabrous, or pubescent. Leaf-sheaths tubular for much of their length; with 1 of their length closed; with flat margins; glabrous on surface. Leaf-sheath auricles erect. Ligule a ciliolate membrane; 0.5 mm long. Leaf-blades filiform; conduplicate; 0.3–0.6 mm wide; glaucous. Leaf-blade venation comprising 3–5 vascular bundles; with 1–3 inner ridges; with 3 subepidermal sclerenchyma strands; with subepidermal sclerenchyma strands unequal in size; with subepidermal sclerenchyma free from veins. Leaf-blade surface smooth.

INFLORESCENCE Inflorescence a panicle.

Panicle open; 2.5–4.5 cm long. Primary panicle branches simple. Panicle branches puberulous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 6.5–7.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes obscured by lemmas.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3.2–4.6 mm long; 0.75–0.9 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 4.6–5.2 mm long; chartaceous; glaucous and purple; suffused with last colour; without keel; 5 -veined. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 2–5 mm long overall. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Anthers 3; 2–2.5 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; ellipsoid. Hilum linear. Disseminule comprising a caryopsis and palea.

DISTRIBUTION Europe: southeastern.

NOTES Poeae. Fl Eur 1995.

ADDITIONAL CHARACTERS Sclerenchyma strands stout.

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