Chusquea longiligulata (Soderstr. & C.E.Calderón) L.G.Clark

First published in Ann. Missouri Bot. Gard. 74: 428 (1987)
This species is accepted
The native range of this species is Costa Rica. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms arching; 300-1000 cm long; 20-30 mm diam.; woody; without nodal roots. Culm-internodes terete; thick-walled; distally glabrous, or hispid. Culm-nodes glabrous. Lateral branches dendroid; intravaginal. Branch complement several, or many; in a clump; with subequal branches; thinner than stem. Culm-sheaths hispid; hairy throughout; without auricles. Culm-sheath ligule 2 mm high; ciliate. Culm-sheath blade triangular; erect; 5.5 cm long; pubescent. Leaf-sheaths keeled; outer margin glabrous, or hairy. Leaf-sheath auricles erect. Ligule an eciliate membrane; 10-70 mm long; acuminate. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 12-28 cm long; 8-23 mm wide; dark green. Leaf-blade midrib prominent beneath. Leaf-blade margins cartilaginous; scaberulous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; linear; 25-50 cm long; 1 cm wide. Primary panicle branches ascending; 5-11 cm long. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; curved; subterete; 6-7.7 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; curved; subterete; 6-7.7 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; 0.3-0.7 mm long; 0.33-0.5 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.9-1.2 mm long; 0.1-0.2 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; 3 mm long; chartaceous; 3 -veined; acuminate. Lemma of upper sterile floret ovate; 3.7-4.8 mm long; chartaceous; acuminate. Fertile lemma ovate; 5.7-6.4 mm long; coriaceous; without keel; 5-7 -veined. Lemma margins involute; covering most of palea. Lemma apex acute. Palea tightly convolute around flower; 1 length of lemma. Palea keels contiguous above a sulcus. Palea apex with excurrent keel veins.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous; veined; ciliate. Anthers 3; 3.5-4.1 mm long; yellow. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
South America: Mesoamericana.
Reference
Bambuseae. Fl Costaric 1994.
[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