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Leguminoxylon dindense

Magnoliopsida - Fabales - Leguminosae

Taxonomy
Leguminoxylon dindense was named by Pons (1983) [Sample nº 5715, Collection of the laboratory of Paleobotanic, Pierre and Marie Curie University]. Its type specimen is see comments, a wood, and it is a 3D body fossil. It is the type species of Leguminoxylon.

Synonymy list
YearName and author
1983Leguminoxylon dindense Pons p. 411 figs. 86-88

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RankNameAuthor
kingdomPlantae
phylumSpermatophyta
classMagnoliopsidaCronquist et al. 1996
EudicotDoyle and Hotton 1991
RankNameAuthor
orderFabalesBromhead 1838
familyLeguminosaede Jussieu
genusLeguminoxylonGupta 1936
speciesdindense

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
D. Pons 1983Diffused-pore heteroolecular wood; Pores isolated (38%) or grouped by 2-5 (8) in radial rows, very small to small, 20-120 μm tangential diameter (average = 60-80 µm), numbering 9 to 23 pores per mm2; walls
Thick 4-6 µm; Vessels of 60 to 350 µm long; Single perforations; Small, hexagonal, areola and alternate intervessel pits, 4-6 μm in diameter; Colored deposits.
A highly developed circumvascular parenchyma in lateral wings that can anastomose with each other to form strips alternating with strips of fibrous tissue; 1-2 cell parenchymal files; Parenchyma ligneous 1-2 cell seated, fairly regularly present; Long rows of crystals of calcium oxalate (16-20 crystals).
Homogeneous rays, 1-2 (3) -serial (8-24 µm), high from 1 to 24 cells (mean = <15 cells) or 12-320 µm (average <200 µm) and 9 to 12 per mm; Not staged.
Sizniplicated fibers 6-12 μm in diameter and very thin
(Diagnose: Leguminoxylon dindense nov. sp.
Bois hétéroxylé à pores diffus; pores isolés (38 %) ou groupés par 2—5 (8) en files radiales, très petits à petits, 20—120 µm de diamètre tangentiel (moyenne = 60-80 µm), au nombre de 9 à 23 pores par mm2 ; parois
épaisses de 4—6 µm; éléments de vaisseaux longs de 60 à 350 µm; perforations uniques; ponctuations intervasculaires petites, hexagonales, aréolées et alternes, de 4—6 µm de diamètre; dépôts colorés.
Parenchyme circumvasculaire très développé en ailes latérales qui peuvent s’anastomoser entre elles pour former des bandes alternant avec des bandes de tissu fibreux; files parenchymateuses de 1—2 cellules; parenchyme ligneux terminal de 1—2 assises de cellules, assez régulièrement présent; longues files de cristaux d’oxalate de calcium (16-20 cristaux) .
Rayons homogènes, 1-2 (3)—sériés (8—24 µm), hauts de 1 à 24 cellules (moyenne =<15 celules) soit 12—320 µm (moyenne <200 µm) et au nombre de 9 à 12 par mm ; non étagés. Fibres siznpliciponctuées de 6-12 µm de diamètre et à parois très épaisses (2—4,5 µm), non septées.)