Digitaria hololeuca

HABIT Perennial; caespitose. Culms erect; 25–50 cm long; 2 -noded. Culm-internodes distally pilose. Leaf-sheaths mostly shorter than adjacent culm internode; hirsute. Ligule a ciliolate membrane. Leaf-blades 8–10 cm long; 2–4 mm wide. Leaf-blade surface hirsute; densely hairy; hairy on both sides. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3; digitate; unilateral; 3–6 cm long. Central inflorescence axis 0.5–1 cm long. Rhachis angular; scaberulous on margins. Raceme-bases pubescent.

Spikelets in threes. Fertile spikelets pedicelled; 3 in the cluster. Pedicels unequal; scabrous; tip cupuliform.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.75 mm long; falling entire.

GLUMES Glumes shorter than spikelet; thinner than fertile lemma. Lower glume oblate; 0.05 length of spikelet; hyaline; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume elliptic; 0.9 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface pubescent; hairy between veins; with capitate hairs.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 3 -veined; pubescent; hairy between veins; with capitate hairs. Fertile lemma elliptic; 1.75 mm long; cartilaginous; much thinner on margins; purple; without keel. Lemma surface striate. Lemma margins flat; covering most of palea. Lemma apex apiculate. Palea cartilaginous.

DISTRIBUTION South America: Brazil.

NOTES Paniceae. Henrard 2004.

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