Agrostis ramboi

HABIT Perennial; caespitose. Culms geniculately ascending; 25–35 cm long; 3–4 -noded. Culm-internodes distally glabrous. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 3 mm long. Leaf-blades 6–9 cm long; 2–3.5 mm wide; flaccid. Leaf-blade surface scaberulous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; continuous, or interrupted; 8–15 cm long; 1–1.5 cm wide.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 4.5 mm long; 1.05 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 4 mm long; 1.6 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate; 1.6 mm long; hyaline; without keel; 5 -veined. Lemma apex dentate; 4 -fid; awned; 5 -awned. Principal lemma awn dorsal; arising 0.66–0.75 way up back of lemma; geniculate; 8 mm long overall; with twisted column. Lateral lemma awns arising on apex of lobes; 2–3 mm long. Palea absent or minute.

FLOWER Anthers 3; 0.75 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: Brazil.

NOTES Aveneae. Parodi 2010.

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