Brachiaria tanimbarensis

HABIT Annual. Culms 80–100 cm long. Ligule a fringe of hairs. Leaf-blades 10–20 cm long; 8–10 mm wide. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3–9; borne along a central axis; unilateral; 1.5–2 cm long. Central inflorescence axis 15–25 cm long. Rhachis broadly winged; 1 mm wide. Spikelet packing adaxial; regular; 2 -rowed.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; subacute; 3–3.2 mm long; falling entire. Rhachilla internodes elongated between glumes.

GLUMES Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume oblong; clasping; 0.33 length of spikelet; membranous; without keels; 11 -veined. Lower glume surface glabrous. Lower glume apex obtuse. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume surface pilose. Upper glume apex obtuse.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 7 -veined; sulcate; obtuse. Fertile lemma elliptic; 3–3.2 mm long; indurate; without keel. Lemma surface rugulose. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate; without keels. Palea surface rugose.

FLOWER Anthers 3; 3–3.2 mm long.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Paniceae. Ohwi.

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