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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Myriocladus neblinaensis
HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 100–150 cm long. Culm-internodes shorter and closely spaced at top of culm; terete. Lateral branches lacking, or sparse; arising from upper culm. Leaf-sheaths pubescent. Ligule an eciliate membrane. Leaf-blade base broadly rounded; with a brief petiole-like connection to sheath. Leaf-blades erect, or ascending; lanceolate, or oblong; 4–6 cm long; 12–20 mm wide; coriaceous. Leaf-blade surface glabrous, or puberulous. Leaf-blade margins scabrous. Leaf-blade apex acute.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 8–15; borne along a central axis; closely spaced; erect, or ascending; unilateral; 1–1.5 cm long. Central inflorescence axis 6–8 cm long.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 2–3 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 8–12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 5–7 mm long. Lower glume surface pubescent. Lower glume margins ciliolate. Lower glume apex acuminate. Upper glume lanceolate; 7–9 mm long; membranous; without keels. Upper glume surface pubescent. Upper glume margins ciliolate. Upper glume apex acuminate.
FLORETS Basal sterile florets barren; without significant palea; persisting on inflorescence. Lemma of lower sterile floret similar to upper glume; ovate; 8–10 mm long; membranous; pubescent; acuminate; muticous, or awned. Awn of lower sterile floret 0.5–1 mm long. Fertile lemma elliptic; 9–10 mm long; coriaceous; without keel. Lemma surface pubescent; hairy all along, or below. Lemma margins ciliate; hairy above. Lemma apex muticous, or awned; 1 -awned. Principal lemma awn 0.5–1 mm long overall. Palea 8–9 mm long. Palea keels ciliate. Palea surface pubescent; hairy on back. Palea apex with excurrent keel veins. 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.
