Isachne kinabaluensis

HABIT Perennial; caespitose. Culms erect; 30–60 cm long; woody. Culm-nodes pubescent. Leaf-sheaths 4–7 cm long; longer than adjacent culm internode; glabrous on surface; outer margin hairy. Ligule a fringe of hairs. Leaf-blade base cordate. Leaf-blades ascending; lanceolate; 4–15 cm long; 5–10 mm wide; stiff; glaucous. Leaf-blade margins cartilaginous; scaberulous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 11 cm long; 7 cm wide. Primary panicle branches 1.5–3.5 cm long. Panicle branches bearded in axils.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels glandular.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; dorsally compressed; 2.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes deciduous; similar; reaching apex of florets; thinner than fertile lemma; incurved at apex. Lower glume ovate; 2.4 mm long; 1 length of spikelet; membranous; without keels; 7 -veined. Lower glume apex cuspidate. Upper glume ovate; 2.2 mm long; 1 length of adjacent fertile lemma; membranous; without keels; 9 -veined. Upper glume apex cuspidate.

FLORETS Fertile lemma ovate; 2 mm long; coriaceous; without keel. Lemma surface pubescent; hairy above. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.

FLOWER Anthers 3; 1.5 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China and Malesia.

NOTES Isachneae. Gilliland 1993.

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