Agrostis marojejyensis

HABIT Annual. Culms erect; 40–60 cm long; 4–5 -noded. Culm-internodes striate; smooth. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths striately veined; smooth; glabrous on surface. Ligule an eciliate membrane; 2.8–3 mm long; lacerate; truncate. Leaf-blades 8–15 cm long; 1.5–2.5 mm wide. Leaf-blade surface glabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; lanceolate; 8–12 cm long. Primary panicle branches appressed; 4–5 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 5–10 mm long; scaberulous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4.3–4.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 4.3–4.5 mm long; 1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface puberulous. Lower glume apex acuminate. Upper glume lanceolate; 4.1–4.2 mm long; 1.2 length of adjacent fertile lemma; membranous; 1-keeled; 1–3 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent, or obscure. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 2.5–3 mm long; hyaline; without keel; 3 -veined. Lemma lateral veins prominent; excurrent. Lemma apex erose; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.1 way up back of lemma; geniculate; 6 mm long overall; with twisted column. Column of lemma awn 3 mm long. Palea 1–1.5 mm long; hyaline.

FLOWER Anthers 3; 1.5–2 mm long.

DISTRIBUTION Africa: western Indian ocean.

NOTES Aveneae. Camus 2007.

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