Canastra lanceolata

HABIT Perennial; caespitose. Butt sheaths thickened and forming a bulb. Culms 40–80 cm long. Culm-nodes constricted; glabrous. Ligule a ciliate membrane; 2–3 mm long. Leaf-blades 5–30 cm long; 2–6 mm wide. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear, or oblong; 5–17 cm long.

Spikelets solitary, or in pairs. Fertile spikelets pedicelled; 1–2 in the cluster. Pedicels filiform.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2–4 mm long; 1 mm wide; falling entire. Spikelet callus glabrous.

GLUMES Glumes dissimilar; reaching apex of florets; firmer than fertile lemma. Lower glume linear; 3–7 mm long; 0.5 length of spikelet; coriaceous; without keels; 3 -veined. Lower glume apex awned; 1 -awned. Lower glume awn 11 mm long. Upper glume oblong; 1 length of spikelet; coriaceous; without keels; 5 -veined. Upper glume awned; 1 -awned. Upper glume awn 11–13 mm long.

FLORETS Basal sterile florets barren; with palea, or without significant palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; coriaceous; 5 -veined; obtuse. Fertile lemma linear; membranous; without keel; 5 -veined. Lemma apex obtuse. Palea hyaline; without keels.

FLOWER Lodicules 2; cuneate; fleshy. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: Brazil.

NOTES Paniceae. Filgueiras.

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