Homolepis aturensis

HABIT Perennial; short-lived. Stolons present. Culms erect, or geniculately ascending; 20–50 cm long; 1–2 mm diam. Ligule a ciliolate membrane; 0.4–0.7 mm long. Leaf-blade base broadly rounded. Leaf-blades linear, or lanceolate; 4–12 cm long; 7–20 mm wide. Leaf-blade surface glabrous, or pubescent.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 6–9 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 7–8 mm long; falling entire.

GLUMES Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 1 length of upper glume; 1 length of spikelet; membranous; without keels; 7–9 -veined. Lower glume lateral veins ribbed. Lower glume apex acute. Upper glume ovate; membranous; without keels; 7 -veined. Upper glume lateral veins without ribs. Upper glume margins ciliate (near base). Upper glume apex acute.

FLORETS Basal sterile florets barren; with palea. Lemma of lower sterile floret ovate; 5–7 mm long; membranous; 7 -veined; ciliate on margins; acute. Fertile lemma lanceolate; 5–6 mm long; cartilaginous; without keel; 5 -veined. Lemma margins flat. Lemma apex acute. Palea 1 length of lemma; cartilaginous.

FLOWER Anthers 3; 1.3–1.6 mm long.

DISTRIBUTION North America: Mexico. South America: Mesoamericana, Caribbean, northern South America, western South America, and Brazil.

NOTES Paniceae. Pohl.

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