Amphipogon amphipogonoides

HABIT Perennial. Rhizomes short. Culms erect, or geniculately ascending; 20–40 cm long; 3–6 -noded. Culm-nodes glabrous. Ligule a fringe of hairs. Leaf-blades filiform; involute; 5–15 cm long; 1–2 mm wide; stiff. Leaf-blade surface scaberulous; rough abaxially. Leaf-blade apex pungent.

INFLORESCENCE Inflorescence a panicle.

Panicle capitate; ovate; 1–1.5 cm long. Primary panicle branches accrescent to a central axis; with evident branchlets on axis.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 5–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus brief; pubescent.

GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 5–7 mm long; 1 length of upper glume; membranous; without keels; 3 -veined. Lower glume surface villous. Lower glume apex acuminate. Upper glume lanceolate; 5–7 mm long; 1.4–1.8 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume surface villous. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 3.5–4 mm long; coriaceous; without keel; 3 -veined. Lemma surface pilose. Lemma margins involute. Lemma apex lobed; 3 -fid (or the laterals with a subsidiary outer lobe); incised 0.4–0.5 of lemma length; acuminate. Palea oblong; 1 length of lemma; coriaceous; 2 -veined; without keels. Palea surface pilose. Palea apex lobed; 4 -fid; acuminate.

FLOWER Anthers 3; 2–2.5 mm long.

FRUIT Caryopsis with free soft pericarp.

DISTRIBUTION Australasia: Australia.

NOTES Arundineae. Vickery.

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