Phyllostachys mannii

HABIT Perennial; caespitose. Rhizomes elongated; leptomorph. Culms erect; 1000–1200 cm long; 100–200 mm diam.; woody. Culm-internodes semiterete; hollow; light green. Culm-nodes glabrous. Lateral branches dendroid. Culm-sheaths 15–25 cm long; hispid; with appressed hairs, or erect hairs; with black hairs; without auricles. Culm-sheath blade linear; reflexed. Leaves cauline. Leaf-sheaths keeled; outer margin hairy. Leaf-sheath oral hairs scanty. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 8–12 cm long; 12–16 mm wide; glaucous. Leaf-blade surface hispid; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; fasciculate; with spathaceous subtending bracts; bracts 3.5 mm long; with ultimate bract subtending a compact bracteolate fascicle of spikelets; prophyllate below lateral spikelets.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 20–25 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes two; persistent; shorter than spikelet. Upper glume oblong; chartaceous; 2-keeled. Upper glume apex acute.

FLORETS Fertile lemma ovate; 10–15 mm long; chartaceous; without keel. Lemma lateral veins prominent. Lemma apex acute. Palea 1 length of lemma; chartaceous. Palea keels ciliate. Palea apex with excurrent keel veins.

FLOWER Lodicules 3; veined; ciliate. Anthers 3; anther tip with extended connective. Stigmas 3. Ovary umbonate.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China. Asia-tropical: India and Indo-China.

NOTES Arundinarieae. Tewari 1996.

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