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.

Puccinellia dolicholepis

HABIT Perennial; caespitose; clumped loosely. Culms geniculately ascending; 30–60 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane. Leaf-blades filiform; convolute; 10–25 cm long; 1–1.5 mm wide; glaucous. Leaf-blade surface smooth; glabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 10–20 cm long. Primary panicle branches ascending. Panicle branches scaberulous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets linear, or lanceolate; laterally compressed; compressed slightly; 5–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.

GLUMES Glumes persistent; shorter than spikelet. Lower glume linear; 1.5–2.5 mm long; 0.66–0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse, or acute. Upper glume elliptic; 2.5–3 mm long; 0.8–0.9 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma oblong; 3–3.5 mm long; membranous; much thinner above; purple; without keel; rounded except near apex; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pilose; hairy below. Lemma apex acuminate. Palea 1 length of lemma; 2 -veined. Palea keels scabrous; ciliolate; adorned with hairs below. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1–1.5 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Europe: eastern. Asia-temperate: Siberia, Soviet Middle Asia, Caucasus, and China.

NOTES Poeae. Fl Iran 1995.

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