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Descriptions

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

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

Myriocladus distantiflorus

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 400–500 cm long. Culm-internodes terete. Lateral branches sparse. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane; pubescent on abaxial surface. Leaf-blade base broadly rounded. Leaf-blades lanceolate, or ovate; 10–20 cm long; 35–45 mm wide; coriaceous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes numerous; borne along a central axis; closely spaced; ascending; straight; unilateral; 5–10 cm long; with branchlets at base of longer racemes. Central inflorescence axis 65 cm long; pubescent. Rhachis pubescent on surface.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1–4 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 8–12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated below proximal fertile floret. Rhachilla elongation 0.5 mm long. Rhachilla internodes smooth.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume linear; 2–3 mm long. Lower glume surface hispidulous; hairy at apex. Lower glume apex acute. Upper glume lanceolate; 3–4 mm long; membranous; without keels. Upper glume surface hispidulous; hairy at apex. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea; persisting on inflorescence. Lemma of lower sterile floret similar to upper glume; lanceolate; 3–4 mm long; membranous; hispidulous; hairy at apex; obtuse, or acute; muticous, or mucronate. Fertile lemma elliptic; 5–5.5 mm long; coriaceous; without keel. Lemma apex obtuse; muticous, or mucronate. Palea 1 length of lemma. Palea apex pubescent. Apical sterile florets 1 in number; rudimentary.

FLOWER Lodicules 3. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: northern South America.

NOTES Bambuseae. Swallen 1996.

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