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.

Pringleochloa stolonifera

HABIT Perennial; mat forming. Stolons present. Ligule a fringe of hairs. Leaf-blades 1–5 cm long; 0.5–2 mm wide; stiff. Leaf-blade apex obtuse.

INFLORESCENCE Monoecious, or dioecious; with male and female spikelets in different inflorescences. Inflorescence composed of racemes; embraced at base by subtending leaf.

Racemes 3–5; borne along a central axis; closely spaced; in a head; cuneate; unilateral; 0.5–0.8 cm long; bearing few fertile spikelets; bearing 2–4 fertile spikelets on each. Rhachis deciduous from axis; terminating in a barren extension; extension subulate.

Spikelets solitary. Fertile spikelets sessile. Male spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets elliptic; dorsally compressed; 4–6 mm long; falling entire; deciduous with accessory branch structures.

GLUMES Glumes collateral; dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume linear; 2–2.5 mm long; 0.66 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface pilose. Lower glume apex acuminate. Upper glume lanceolate; 3–4 mm long; 1 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface pilose. Upper glume apex acuminate.

FLORETS Fertile florets female. Fertile lemma elliptic; 3–4 mm long; cartilaginous; without keel; 3 -veined. Lemma surface puberulous. Lemma margins ciliate. Lemma apex lobed; 3 -fid; with outer lobes shorter and with central lobe bidentate; incised 0.33 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; 0.5 mm long overall. Lateral lemma awns arising on margin of lemma; ciliolate. Apical sterile florets 2–3 in number; in a clump; rudimentary. Apical sterile lemmas awned. Apical sterile lemma awns 5–6 mm long; ciliate; 15–25 per spikelet in number.

MALE Male inflorescence terminal; unlike female; of racemes along a central axis; with pectinate racemes. Male spikelets distinct from female; 1 flowered; lanceolate; 3.5–4 mm long; glabrous. Male spikelet glumes 2. Male spikelet lemma 3 -veined; muticous.

DISTRIBUTION North America: Mexico.

NOTES Cynodonteae. WDC.

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