Agrostis sodiroana

HABIT Perennial; caespitose. Culms 30–60 cm long. Culm-internodes distally glabrous. Ligule an eciliate membrane; 4–5 mm long. Leaf-blades 10–20 cm long; 2–5 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; effuse; 10–20 cm long; with spikelets clustered towards branch tips. Primary panicle branches drooping. Panicle branches capillary.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 3 mm long; 1.5–1.7 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.

FLORETS Fertile lemma elliptic; 1.8–2 mm long; hyaline; without keel; 5 -veined. Lemma apex dentate; 2 -fid; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.75 way up back of lemma; straight; 2 mm long overall. Palea 1 mm long; 0.5 length of lemma; hyaline.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION South America: western South America.

NOTES Aveneae. Gr Peru 1995.

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