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Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Festuca crispatopilosa

HABIT Perennial; caespitose. Rhizomes elongated. Butt sheaths persistent and investing base of culm; with compacted dead sheaths. Culms erect; 30–60 cm long. Lateral branches lacking. Leaf-sheaths open for most of their length; smooth; glabrous on surface. Leaf-sheath auricles erect. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades straight, or flexuous; filiform; conduplicate; elliptic in section; 5–10 cm long; 0.5–1 mm wide; stiff. Leaf-blade surface puberulous; hairy adaxially. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle. Peduncle pilose above.

Panicle open; lanceolate; 7–15 cm long. Primary panicle branches ascending. Panicle axis pilose. Panicle branches pilose.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3.5–4 mm long; 0.75 length of upper glume; chartaceous; without keels; 3 -veined. Lower glume surface puberulous; hairy above. Lower glume apex acuminate. Upper glume elliptic, or oblong; 5 mm long; 0.75 length of adjacent fertile lemma; chartaceous; without keels; keel-less except near apex; 4–5 -veined. Upper glume lateral veins distinct. Upper glume surface puberulous; hairy above. Upper glume apex obtuse.

FLORETS Fertile lemma elliptic; 7–7.5 mm long; chartaceous; without keel; 5 -veined. Lemma midvein scaberulous. Lemma surface glabrous, or puberulous; hairy above. Lemma apex acute; awned; 1 -awned. Principal lemma awn 4–9 mm long overall. Palea 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Anthers 3; 2.5 mm long. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp; oblong; hairy at apex. Embryo 0.15 length of caryopsis. Hilum linear; 0.75 length of caryopsis.

DISTRIBUTION Asia-tropical: Papuasia.

NOTES Poeae. Bor 1997.

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