Nastus reholttumianus

HABIT Perennial. Rhizomes short; pachymorph. Culms woody. Culm-internodes terete. Lateral branches dendroid. Branch complement several. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate; 1–2 mm long. Ligule an eciliate membrane; 0.5 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 4.5–8 cm long; 7–14 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 8–12 cm long. Primary panicle branches spreading. Panicle axis puberulous. Panicle branches puberulous.

Spikelets solitary.

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

GLUMES Glumes several; 5 empty glumes; shorter than spikelet. Lower glume ovate; 1.5 mm long; chartaceous; 1-keeled. Lower glume apex acute; mucronate. Upper glume ovate; 5.5 mm long; chartaceous; without keels; 7 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma ovate; 6 mm long; coriaceous; without keel. Lemma apex acuminate. Palea 6 mm long; 1 length of lemma; coriaceous; 2-keeled.

FLOWER Lodicules 3; 1 mm long; ciliate. Anthers 6; 2.5 mm long. Stigmas 3. Ovary umbonate.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Bambuseae. Soenarko 2002.

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