GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Leptaspis banksii

HABIT Perennial; caespitose. Culms erect; 20–40 cm long. Culm-internodes solid. Ligule a ciliolate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades inverted; lanceolate; 10–25 cm long; 10–25 mm wide. Leaf-blade venation slanting obliquely from midrib; with distinct cross veins. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade apex acute.

INFLORESCENCE Monoecious; with male and female spikelets in the same inflorescence. Inflorescence a panicle.

Panicle open; lanceolate; 15–20 cm long. Primary panicle branches appressed; 1 -nate; simple; 1–5 cm long.

Sexes mixed. Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster; on shorter pedicels than sterile. Male spikelets pedicelled; 1 in a cluster.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets orbicular; cochleate; laterally compressed; gibbous; 5–7 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 2 mm long; 1 length of upper glume; membranous; dark brown; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface pubescent; with hooked hairs. Lower glume apex cuspidate. Upper glume ovate; 2 mm long; 0.3–0.4 length of adjacent fertile lemma; membranous; dark brown; without keels; 1–3 -veined. Upper glume lateral veins absent. Upper glume surface pubescent; with hooked hairs. Upper glume apex cuspidate.

FLORETS Fertile florets female. Fertile lemma orbicular; gibbous; 5–7 mm long; chartaceous; without keel; 5 -veined. Lemma lateral veins ribbed. Lemma surface pubescent; with hooked hairs. Lemma margins closed except for an apical pore; covering most of palea. Lemma apex obtuse. Palea linear. Palea keels contiguous above a sulcus.

FLOWER Lodicules absent. Anthers 6. Stigmas 3; terminally exserted; pubescent. Styles connate below. Ovary pubescent all over.

FRUIT Caryopsis with adherent pericarp.

MALE Male spikelets similar to female but less developed; 1 flowered; 2 mm long. Male spikelet glumes 2.

DISTRIBUTION Asia-temperate: eastern Asia. Asia-tropical: Malesia and Papuasia. Australasia: Australia. Pacific: southwestern.

NOTES Phareae. WDC.

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