Paspalum rupium

HABIT Perennial; caespitose. Culms 50–60 cm long. Culm-nodes pubescent. Ligule an eciliate membrane. Leaf-blades involute; 13–22 cm long; 1–2 mm wide. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 5–6; borne along a central axis; unilateral; 2–6 cm long. Central inflorescence axis 6–9.5 cm long. Rhachis scaberulous on margins.

Spikelets in pairs. 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; 3 mm long; falling entire.

GLUMES Glumes one the lower absent or obscure, or two; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.2–0.4 length of spikelet; 0 -veined. Lower glume lateral veins absent. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 3 -veined. Upper glume apex acute.

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

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: Brazil.

NOTES Paniceae. Gr Bahia 1995.

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