Paspalum redondense

HABIT Perennial. Rhizomes short. Butt sheaths pubescent. Culms erect; 55–60 cm long. Culm-internodes distally glabrous. Leaf-sheaths mostly shorter than adjacent culm internode; outer margin glabrous, or hairy. Ligule an eciliate membrane. Leaf-blades erect; 6–10 cm long; 1.5–2.5 mm wide. Leaf-blade surface hirsute; sparsely hairy; with tubercle-based hairs.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 4–6; borne along a central axis; unilateral; 3–7 cm long. Central inflorescence axis 4–7 cm long. Rhachis broadly winged; 2 mm wide. Spikelet packing abaxial; 4 -rowed. Raceme-bases pilose, or hirsute.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; plano-convex; 2–8 mm long; 1.4 mm wide; 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; 3–5 -veined. Upper glume surface glabrous. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 3–5 -veined; glabrous; acute. Fertile lemma elliptic; 2.8 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Palea involute; indurate.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: Brazil.

NOTES Paniceae. Swallen 2001.

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