Poaceae
Chusquea

Chusquea ramosissima Lindm.

First published in Kongl. Svenska Vetensk. Acad. Handl., n.f., 34(6): 24 (1900)
This species is accepted
The native range of this species is Bolivia to Brazil and N. Uruguay. It is a bamboo.

Descriptions

Morphology General Habit
Perennial. Culms erect, or scandent; 400-1000 cm long; 15 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; 5-10 cm long; smooth; distally glabrous. Lateral branches dendroid. Branch complement many; in a clump. Culm-sheath blade lanceolate; 10-15 cm long. Leaf-sheaths without keel. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane; 1-1.5 mm long; obtuse. Collar with external ligule. Leaf-blade base symmetrical; with a brief petiole-like connection to sheath; petiole 0.1-0.2 cm long; petiole pubescent. Leaf-blades deciduous at the ligule; linear, or lanceolate; 5-9 cm long; 6-17 mm wide. Leaf-blade venation with 8-10 secondary veins; with obscure cross veins. Leaf-blade surface glabrous. Leaf-blade margins scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; embraced at base by subtending leaf. Panicle open; oblong; secund; 2-2.5 cm long; bearing few spikelets. Primary panicle branches indistinct the panicle almost racemose. Panicle axis pubescent. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; acuminate; 6-9 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 lanceolate; laterally compressed; acuminate; 6-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume orbicular; 0.5-1 mm long; 1 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume orbicular; 0.5-1 mm long; 0.05-0.1 length of adjacent fertile lemma; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 0.66 length of fertile lemma; chartaceous; ciliate on margins; truncate. Lemma of upper sterile floret ovate; 1 length of lower sterile floret; chartaceous; ciliate on margins; acute. Fertile lemma ovate; 7-9 mm long; coriaceous; yellow; without keel. Lemma apex acute.
Morphology Reproductive morphology Flowers
Lodicules 3. Anthers 3. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
South America: western South America, Brazil, and southern South America.
Reference
Bambuseae. Fl Cat 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/

  • 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