Paspalum amphicarpum

HABIT Perennial. Stolons present. Culms 30–40 cm long. Ligule a fringe of hairs. Leaf-blades 5–15 cm long; 3–6 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2–3; paired, or borne along a central axis; unilateral; 2–4.5 cm long. Central inflorescence axis 0.5–1.5 cm long. Rhachis broadly winged; 1 mm wide; glabrous on margins. Spikelet packing abaxial; regular; 2 -rowed.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; plano-convex; acute; 2.5–2.7 mm long; falling entire.

GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 2–3 -veined. Upper glume apex obtuse.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 2 -veined; obtuse. Fertile lemma elliptic; gibbous; 2.5–2.7 mm long; indurate; dark brown; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.

CLEISTOGENES AND VIVIPARY Cleistogenes present; underground.

DISTRIBUTION South America: Caribbean.

NOTES Paniceae. Man WI.

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