Paspalum albidulum

HABIT Perennial; caespitose. Culms 60–100 cm long. Leaves mostly basal. Ligule an eciliate membrane; 0.5 mm long; pubescent on abaxial surface. Leaf-blades 20–28 cm long; 3–4 mm wide. Leaf-blade surface pilose; with tubercle-based hairs.

INFLORESCENCE Inflorescence composed of racemes. Peduncle 10 cm long.

Racemes 8–12; borne along a central axis; unilateral; 6–7.5 cm long. Central inflorescence axis 10–12 cm long. Rhachis 0.3–0.5 mm wide. Spikelet packing abaxial; 2 -rowed.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels flexuous; 1–1.8 mm long; ciliate; hairy at base.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; plano-convex; 2–2.4 mm long; falling entire.

GLUMES Glumes one to two the lower present in some spikelets; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0–1.5 mm long; 0–0.6 length of upper glume. Upper glume ovate; 0.9 length of spikelet; membranous; without keels; 5–7 -veined.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 3–5 -veined; with 2 longitudinal grooves. Fertile lemma elliptic; 2–2.4 mm long; indurate; pallid; without keel. Lemma surface granulose. Lemma margins involute. Lemma apex acute. Palea involute; indurate.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: northern South America and Brazil.

NOTES Paniceae. Fl Guiana 1995.

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