Poaceae
Chusquea

Chusquea tenuiglumis Döll

First published in C.F.P.von Martius & auct. suc. (eds.), Fl. Bras. 2(3): 199 (1880)
This species is accepted
The native range of this species is SE. Brazil (to Santa Catarina). It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial. Culms arching, or scandent; 200-800 cm long; 5-7 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; concolorous; distally glabrous. Culm-nodes without obvious supra-nodal ridge. Lateral branches dendroid; infravaginal. Branch complement many; in a horizontal line; with 1 branch dominant. Culm-sheaths 17-20 cm long; glabrous, or hispid. Culm-sheath blade triangular; deciduous; reflexed; 17-20 cm long. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 10-11 mm long; acuminate. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 19-20.5 cm long; 18-28 mm wide. Leaf-blade venation without cross veins. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; linear; 5-10 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 8.4-11.9 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 oblong; laterally compressed; 8.4-11.9 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; 0.6-1.2 mm long; membranous; without keels. Lower glume apex obtuse. Upper glume ovate; 0.6-1.2 mm long; 0.1 length of adjacent fertile lemma; membranous; without keels. Upper glume apex obtuse.
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; 1-6.7 mm long; 0.5-0.6 length of spikelet; chartaceous; acuminate. Lemma of upper sterile floret ovate; 6.2-6.9 mm long; chartaceous; acuminate. Fertile lemma ovate; 8-11 mm long; coriaceous; 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: Brazil.
Reference
Bambuseae. Fl Sao Paulo 2001.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • 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