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.

Festuca bosniaca

HABIT Perennial; caespitose. Basal innovations intravaginal. Culms 30–88 cm long; 1.7–2.6 mm diam. Culm-internodes antrorsely scabrous. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.3–1.6 mm long. Leaf-blades filiform; conduplicate; 0.3–1.2 mm wide. Leaf-blade venation comprising 7–11 vascular bundles; with 7–9 inner ridges; with sclerenchyma strands below veins and above all veins; with continuous uniform subepidermal sclerenchyma layer on the underside. Leaf-blade surface smooth. Leaf-blade apex pungent.

INFLORESCENCE Inflorescence a panicle. Peduncle antrorsely scabrous above.

Panicle open; ovate; nodding; 6–9.5 cm long. Panicle branches flexuous; smooth, or scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets with diminished florets at the apex. Spikelets oblong; laterally compressed; 8.4–13 mm long; breaking up at maturity; disarticulating below each fertile floret.

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; 4.1–7.8 mm long; 0.75 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex obtuse, or acute.

FLORETS Fertile lemma oblong; 5.5–8.8 mm long; chartaceous; without keel; 5 -veined. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 1.4–2.1 mm long overall. Palea 2 -veined. Palea surface smooth; glabrous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; ciliate. Anthers 3; 2–4 mm long. Ovary pubescent on apex.

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

DISTRIBUTION Europe: southeastern.

NOTES Poeae. Fl Eur 1995.

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