Axonopus boliviensis

HABIT Annual. Culms erect, or geniculately ascending; 20–45 cm long. Culm-nodes glabrous. Leaves basal and cauline. Leaf-sheaths keeled; glabrous on surface, or pilose. Ligule a ciliolate membrane; 0.3 mm long. Leaf-blade base truncate, or broadly rounded. Leaf-blades linear, or lanceolate; 5–14 cm long; 4–9 mm wide. Leaf-blade surface pilose. Leaf-blade apex acute, or acuminate.

INFLORESCENCE Inflorescence composed of racemes; with 1–3 peduncles per sheath.

Racemes 2–6; digitate; unilateral; 3–6 cm long. Spikelet packing adaxial; regular; 2 -rowed.

Spikelets appressed; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; 1.3–1.7 mm long; falling entire.

GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume elliptic; 1 length of adjacent fertile lemma; 1 length of spikelet; membranous; without keels; 2–4 -veined. Upper glume primary vein absent. Upper glume margins ciliate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of fertile lemma; 1 length of spikelet; membranous; 2–4 -veined; without midvein. Fertile lemma elliptic; 1.3–1.7 mm long; indurate; yellow; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.

DISTRIBUTION South America: western South America.

NOTES Paniceae. Gr Bolivia 1997.

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