Chusquea maclurei L.G.Clark

First published in Iowa State J. Res. 61: 109 (1986)
This species is accepted
The native range of this species is Ecuador. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/45944/11026403

Conservation
VU - vulnerable
[IUCN]

Morphology General Habit
Perennial. Culms erect, or arching; 400-800 cm long; 10-25 mm diam.; woody; without nodal roots. Culm-internodes terete; thick-walled, or solid; 17-26 cm long; smooth, or scaberulous; distally pruinose. Lateral branches dendroid; intravaginal. Bud complement 5-11. Branch complement many; in a horizontal line; thinner than stem. Culm-sheaths persistent; 7-24.5 cm long; antrorsely scabrous (at base). Culm-sheath ligule 3-20 mm high; ciliolate. Culm-sheath blade triangular; cordate; indistinctly demarcated from sheath; erect; 7-17.6 cm long; scabrid. Leaves 5-9 per branch. Ligule an eciliate membrane; 10-70 mm long; truncate. Collar with external ligule. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath; petiole 0.3-0.7 cm long. Leaf-blades lanceolate; 22-40 cm long; 20-50 mm wide; stiff; yellowish green. Leaf-blade venation without cross veins. Leaf-blade surface glabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; linear; 28-60 cm long. Primary panicle branches appressed; 9-19 cm long. Panicle axis angular; pubescent. Panicle branches angular; glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; 2-5 mm long; glabrous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; straight, or curved; laterally compressed; 7.1-9.6 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; straight, or curved; laterally compressed; 7.1-9.6 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.4-0.6 mm long; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.4-0.6 mm long; 0.05 length of adjacent fertile lemma; membranous; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 3.4-4 mm long; 0.4-0.5 length of fertile lemma; chartaceous; 3 -veined; acute. Lemma of upper sterile floret ovate; 3.8-5.7 mm long; chartaceous; acute. Fertile lemma ovate; 6.6-7.7 mm long; coriaceous; without keel; 5 -veined. Lemma apex apiculate. Palea 6.5-8 mm long; 4 -veined.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous; ciliate. Anthers 3; 2.5-3.2 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
South America: western South America.
Reference
Bambuseae. Clark 1995.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0