Mezoneuron

Mezoneuron is a genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Caesalpinioideae[1] and the tribe Caesalpinieae.[2]

Mezoneuron
Mezoneuron kauaiense
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Tribe: Caesalpinieae
Genus: Mezoneuron
Desf. 1818
Type species
Mezoneuron pubescens
Desf.
Species

See text

Synonyms
  • Caesalpinia subgen. Mezoneuron (Desf. 1818) Vidal ex Herend. & Zarucchi (1990)
  • Mezoneurum DC. 1825, orth. var.
  • Mezonevron Desf. 1818, orth. var.

Characteristics and Distribution

This genus consists of lianas, often with the characteristic 'cat's claw' spines on their stems. Pods are one or more seeded, with a longitudinal (often narrow) wing along the upper suture and a wing 2 mm or more wide, which may be papery, coriaceous or woody. They may be found in Africa, Madagascar and SE Asia across the Malay Peninsula and Archipelago to New Guinea, New Caledonia and Australia, one species endemic to Hawaii.[3]

Species

Mezoneuron comprises the following species:[2]

  • Mezoneuron andamanicum Prain
  • Mezoneuron angolense Welw. ex Oliv.
  • Mezoneuron baudouinii Guillaumin
  • Mezoneuron benthamianum Baill.
  • Mezoneuron brachycarpum Benth.
  • Mezoneuron cucullatum (Roxb.) Wight & Arn.
  • Mezoneuron enneaphyllum (Roxb.) Wight & Arn. ex Voigt
  • Mezoneuron erythrocarpum (Pedley) R. Clark & E. Gagnon
  • Mezoneuron furfuraceum Prain
  • Mezoneuron hildebrandtii Vatke
  • Mezoneuron hymenocarpum Wight & Arn. ex Prain
  • Mezoneuron kauaiense (H. Mann) Hillebr.—Uhiuhi (synonym M. kavaiense - Hawaii)
  • Mezoneuron latisiliquum (Cav.) Merr.
  • Mezoneuron mindorense Merr.
  • Mezoneuron montrouzieri Guillaumin
  • Mezoneuron nhatrangense Gagnep. (Vietnam)
  • Mezoneuron nitens (F. Muell. ex Benth.) R. Clark & E. Gagnon
  • Mezoneuron ouenensis (Guillaumin) R. Clark
  • Mezoneuron pubescens Desf.
  • Mezoneuron rubiginosum (Guillaumin) R. Clark
  • Mezoneuron sinense Hemsl.
  • Mezoneuron schlechteri (Harms) R. Clark
  • Mezoneuron scortechinii F. Muell.
  • Mezoneuron sumatranum (Roxb.) Wight & Arn. (Malesia, Indochina)

Fossils

The following fossils have been described:[2]

  • †Mezoneuron claibornensis (Herendeen & Dilcher) R. Clark & E. Gagnon
  • †Mezoneruon flumen-viridensis (Herendeen & Dilcher) R. Clark & E. Gagnon
  • †Mezoneuron spokanensis (Knowlton) R. Clark & E. Gagnon

References
  1. The Legume Phylogeny Working Group (LPWG). (2017). "A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny". Taxon. 66 (1): 44–77. doi:10.12705/661.3.
  2. Gagnon E, Bruneau A, Hughes CE, de Queiroz LP, Lewis GP (2016). "A new generic system for the pantropical Caesalpinia group (Leguminosae)". PhytoKeys. 71 (71): 1–160. doi:10.3897/phytokeys.71.9203. PMC 5558824. PMID 28814915.
  3. Clark R. (2016). "A taxonomic revision of Mezoneuron (Leguminosae: Caesalpinioideae: Caesalpinieae)". Phytotaxa. 274 (1): 1–72. doi:10.11646/phytotaxa.274.1.1.
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