Poaceae
Chusquea

Chusquea inamoena Pilg.

First published in Repert. Spec. Nov. Regni Veg. 1: 150 (1905)
This species is accepted
The native range of this species is Peru. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial. Culms scandent; pendulous at the tip; 700-900 cm long; woody. Culm-internodes terete; 10-13 cm long. Lateral branches dendroid. Branch complement many; in a clump; thinner than stem. Culm-sheaths persistent. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 0.5 mm long; truncate. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 4-8.5 cm long; 5-9 mm wide. Leaf-blade midrib prominent beneath. Leaf-blade venation with 6 secondary veins. Leaf-blade margins scaberulous. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; subtended by an inflated leaf-sheath; embraced at base by subtending leaf. Panicle open; linear; 5-8 cm long. Primary panicle branches appressed; 1-2 cm long. Panicle axis angular; scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 6-6.5 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; laterally compressed; 6-6.5 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 oblate; 0.5 mm long; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume oblate; 0.5-1 mm long; 0.1 length of adjacent fertile lemma; membranous; 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 barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 3-3.5 mm long; 0.5 length of fertile lemma; chartaceous; 5 -veined; obscurely veined; setaceously attenuate. Lemma of upper sterile floret ovate; 3-3.5 mm long; chartaceous; setaceously attenuate. Fertile lemma elliptic; 6-6.5 mm long; coriaceous; without keel; 7 -veined. Lemma lateral veins prominent. Lemma apex acute. Palea elliptic; 1 length of lemma; 4-6 -veined. Palea keels ciliolate.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous. Anthers 3. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
South America: western South America.
Reference
Bambuseae. Pilger 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