Nastus hooglandii

HABIT Perennial. Rhizomes short; pachymorph. Culms scandent; woody. Culm-internodes terete. Lateral branches dendroid. Culm-sheaths hispid; hairy at the base; with reflexed hairs. Leaves 10–12 per branch. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 15–25 cm long; 14–22 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle; bracteate at branch bases and bracteate at pedicel base; subtended by a spatheole; embraced at base by subtending leaf.

Panicle contracted; oblong; 3–4 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 12 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes several; 4 empty glumes; lower persistent, upper deciduous (with floret); shorter than spikelet. Lower glume ovate; 3 mm long; chartaceous. Lower glume apex acute. Upper glume ovate; 4 mm long; coriaceous; without keels. Upper glume surface pubescent. Upper glume hairs red. Upper glume apex acute.

FLORETS Fertile lemma ovate; 10 mm long; coriaceous; without keel. Lemma surface pubescent. Lemma hairs dark brown, or red. Lemma apex acute. Palea coriaceous; 2-keeled. Rhachilla extension 8 mm long. Apical sterile florets 1 in number; barren; lanceolate; 2 mm long.

FLOWER Lodicules 3; ciliate. Anthers 6; 5.5 mm long. Stigmas 3. Ovary umbonate; pubescent on apex.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Papuasia.

NOTES Bambuseae. Holttum 1996.

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