GrassBase - The Online World Grass Flora


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

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

Parodiolyra colombiensis

HABIT Perennial. Culm-internodes terete; hollow; 3–7 cm long; distally glabrous. Culm-nodes brown; glabrous, or pubescent. Leaves cauline. Leaf-sheaths striately veined; glabrous on surface; outer margin hairy. Leaf-sheath oral hairs ciliate. Leaf-sheath auricles erect; 2–4 mm long. Ligule a ciliolate membrane. Leaf-blade base truncate; asymmetrical; with a brief petiole-like connection to sheath; petiole pubescent. Leaf-blades lanceolate, or ovate; 8–14.5 cm long; 17–30 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scabrous; glabrous, or ciliate; hairy at base. Leaf-blade apex attenuate.

INFLORESCENCE Monoecious; with male and female spikelets in the same inflorescence. Inflorescence a panicle.

Panicle open; pyramidal; 6–10 cm long. Primary panicle branches ascending; 1–6 -nate. Panicle axis scaberulous.

Sexes segregated; on bisexual branches; with male below. Spikelets solitary. Fertile spikelets pedicelled. Male spikelets pedicelled. Pedicels 1.5–7 mm long; scaberulous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 4–5 mm long; 1.3 mm wide; falling entire. Rhachilla internodes elongated between glumes and elongated below proximal fertile floret. Rhachilla elongation 0.6 mm long.

GLUMES Glumes similar; subequal in width; exceeding apex of florets; thinner than fertile lemma. Lower glume elliptic; 4–5 mm long; 0.9 length of upper glume; membranous; without keels; 3 -veined. Lower glume lateral veins with cross-veins. Lower glume surface scabrous. Lower glume apex acuminate. Upper glume elliptic; 4.2–4.6 mm long; membranous; without keels; 5 -veined. Upper glume lateral veins with cross-veins. Upper glume surface scabrous. Upper glume apex acuminate.

FLORETS Fertile florets female. Fertile lemma elliptic; dorsally compressed; 3.4 mm long; 1.4 mm wide; indurate; without keel; 5 -veined. Lemma surface punctate. Palea indurate; without keels.

FLOWER Lodicules 3; 0.4 mm long; truncate. Anthers 3; 2.3–3 mm long. Stigmas 2.

MALE Male spikelets distinct from female; 1 flowered; lanceolate; 4 mm long. Male spikelet glumes 2; ovate; 0.05 mm long. Male spikelet lemma 4 mm long; 3 -veined; muticous.

DISTRIBUTION South America: western South America.

NOTES Olyreae. Dav. & Zuloaga 2001.

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