Chusquea pohlii L.G.Clark

First published in Ann. Missouri Bot. Gard. 72: 867 (1985)
This species is accepted
The native range of this species is Costa Rica to Panama. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial. Culms scandent; 1000-1500 cm long; 20-30 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; 22-36 cm long; antrorsely scabrous. Lateral branches dendroid; infravaginal; spreading. Bud complement (2-)4-9(-12). Branch complement several; in a clump; thinner than stem. Culm-sheaths deciduous but leaving a persistent girdle; 18.5-39.2 cm long; 3.5 times as long as wide; antrorsely scabrous; hispid. Culm-sheath ligule 1-2 mm high. Culm-sheath blade triangular; demarcated but persistent; 2.5-8.4 cm long; scabrid; acuminate. Leaves 4-6 per branch. Leaf-sheaths keeled; hispid; outer margin hairy. Ligule an eciliate membrane; 11-30 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.2-0.5 cm long. Leaf-blades linear, or lanceolate; 14-25.6 cm long; 10-23 mm wide. Leaf-blade venation with obscure cross veins. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade margins serrulate. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; linear; 21-30 cm long. Primary panicle branches appressed; 5-6 cm long. Panicle axis pubescent. Panicle branches angular; puberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; 1-4 mm long; pubescent.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6.8-9 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; 6.8-9 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 ovate; 0.5-0.6 mm long; 0.66-0.75 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.8 mm long; 0.1-0.15 length of adjacent fertile lemma; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume surface pubescent. 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; 3.1-4.5 mm long; chartaceous; 5 -veined; pubescent; hairy above; ciliate on margins; fringed above; acuminate. Lemma of upper sterile floret lanceolate; 4.1-5.1 mm long; chartaceous; pilose; ciliate on margins; fringed above; acuminate. Fertile lemma lanceolate; 6.6-7.6 mm long; coriaceous; without keel; 7 -veined. Lemma surface scabrous; rough above. Lemma margins ciliate; hairy above. Lemma apex acuminate. Palea 6.4-7.7 mm long. Palea keels contiguous above a sulcus. Palea surface scabrous. Palea apex acuminate.
Morphology Reproductive morphology Flowers
Lodicules 3; 1.5-1.9 mm long; membranous; ciliate. Anthers 3; 3.3-3.9 mm long. Stigmas 2. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
South America: Mesoamericana.
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/
  • 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