Papuodendron

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Papuodendron
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Subfamily: Malvoideae
Tribe: Hibisceae
Genus: Papuodendron
C.T.White
Type species
Papuodendron lepidotum

Papuodendron is a genus of flowering plants belonging to the family Malvaceae. [1] In 1946 Cyril Tenison White described its first species, Papuodendron lepidotum , which was discovered growing in 1944 in the Mandated Territory of New Guinea. [2] Its native range is New Guinea. [1]

Contents

Description

Papuodendron is an arborescent genus, [2] i.e. plants are tree-like. [3]

Taxonomy

Higher classification

The type species, Papuodendron lepidotum, was provisionally classified as a new species of Cumingia by Ulbricht, but was formally described as belonging to the then new genus of Papuodendron by White. [4] The higher classification of Papuodendron has been revised over time. White originally placed Papuodendron within the family Bombacaceae, [2] but noted similarities to both the family Bombacaceae and the tribe Hibisceae: Papuodendron is similar to the Bombacaceae in the arrangement of the anthers, [2] but similar to the Hibisceae in that the medullary rays do not feature tile cells, [2] a type of ray cell found within the wood of some trees, [5] which are a feature of the Bombacaceae. [2] White's placement of Papuodendron within the Bombacaceae was known to be problematic given its similarities to the Hibisceae, [6] and in 1960 André Joseph Guillaume Henri Kostermans reduced the genus to Hibiscus , [7] thus transferring it to the Hibisceae. In 1966, Jan van Borssum Waalkes returned Papuodendron to the Bombacaceae, [8] albeit hesitantly. [9] In 2000, phylogenetic analysis showed Papuodendron to be within the Malviodeae, and that it was a sister genus to Hibiscus, thus supporting the placement of the genus within the Hibisceae. [10] By 2004, it was settled that Papuodendron belongs to the Malvaceae (within the subfamily Malvoideae) rather than the Bombacaceae. [11]

Distinction from Hibiscus

In 1960, when Kostermans transferred Papuodendron from the family Bombacaceae to the family Malveaceae, he also reduced the genus to Hibiscus on the basis the only difference between the two genera was the position of the anthers, which he considered insufficient to differentiate them. [7] In 1972, Wilhelmus Albertus van Heel supported Kostermans's reduction of Papuodendron to Hibiscus on the basis of anatomical studies showing insufficient differences to support Papuodendron being considered a different genus. [12] The 2000 phylogenetic analysis placing Papuodendron within the Hibisceae did not directly address whether it is a distinct genus. [10] As of 2022, there is ongoing debate as to whether Papuodendron is a distinct genus from Hibiscus: Plants of the World Online considers them distinct genera, but notes that Maarten J. M. Christenhusz et al. cite Papuodendron as Hibiscus. [1]

Species

As of 2022, Plants of the World Online lists the genus as comprising two species: [1]

Related Research Articles

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References

  1. 1 2 3 4 "Papuodendron C.T.White". Plants of the World Online . Royal Botanic Gardens, Kew.
  2. 1 2 3 4 5 6 White, C. T. (1946). "Papuodendron, A New Genus of Arborescent Malvaceae from New Guinea". Journal of the Arnold Arboretum. 27 (3): 272–274. doi: 10.5962/p.185543 . ISSN   0004-2625. JSTOR   43781198. S2CID   196653979.
  3. "Arborescent | Definition in the Cambridge English Dictionary". Cambridge Dictionary. Cambridge University Press. Retrieved 2022-12-10.
  4. van Steenis, C. G. G. J. (1947). "Notes on a Number of New Guinean Species". Journal of the Arnold Arboretum. 28 (4): 419–423. doi: 10.5962/p.185582 . ISSN   0004-2625. JSTOR   43781265. S2CID   195556775.
  5. "tile cell". Merriam-Webster.com Dictionary . Merriam-Webster. Retrieved 2022-12-10.
  6. Baum, David A.; Alverson, William S.; Nyffeler, Reto (1998). "A Durian by Any Other Name: Taxonomy and Nomenclature of the Core Malvales". Harvard Papers in Botany. 3 (2): 315–330. ISSN   1043-4534. JSTOR   41761576 via JSTOR.
  7. 1 2 Kostermans, A. J. G. H. (1960). "MISCELLANEOUS BOTANICAL NOTES 1*". Reinwardtia. 5 (3): 233–254. doi:10.14203/reinwardtia.v5i3.199 (inactive 1 November 2024). ISSN   2337-8824.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  8. van Borssum Waalkes, J. (1966). "Malesian Malvaceae revised". Blumea: Biodiversity, Evolution and Biogeography of Plants. 14 (1): 1–213. ISSN   2212-1676 via Naturalis Biodiversity Center.
  9. Fryxell, Paul A. (1968). "A Redefinition of the Tribe Gossypieae". Botanical Gazette. 129 (4): 296–308. doi:10.1086/336448. ISSN   0006-8071. JSTOR   2473094. S2CID   85400964 via JSTOR.
  10. 1 2 Nyffeler, R.; Baum, D. A. (2000). "Phylogenetic relationships of the durians (Bombacaceae-Durioneae or /Malvaceae/Helicteroideae/Durioneae) based on chloroplast and nuclear ribosomal DNA sequences". Plant Systematics and Evolution. 224 (1/2): 55–82. Bibcode:2000PSyEv.224...55N. doi:10.1007/BF00985266. ISSN   0378-2697. JSTOR   23644160. S2CID   43469554 via JSTOR.
  11. von Balthazar, Maria; Alverson, William S.; Schönenberger, Jürg; Baum, David A. (2004). "Comparative Floral Development and Androecium Structure in Malvoideae (Malvaceae s.l.)". International Journal of Plant Sciences. 165 (4): 445–473. doi:10.1086/386561. ISSN   1058-5893. JSTOR   10.1086/386561. S2CID   84446601.
  12. van Heel, W. A. (1972). "THE TAXONOMIC POSITION OF PAPUODENDRON C.T. WHITE AS ELUCIDATED BY ANATOMICAL CHARACTERS". Reinwardtia. 8 (2): 319–321. doi:10.14203/reinwardtia.v8i2.232 (inactive 1 November 2024). ISSN   2337-8824.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  13. "Hibiscus hooglandianus Kosterm". Plants of the World Online . Royal Botanic Gardens, Kew.
  14. "Papuodendron hooglandianum (Kosterm.) Borss.Waalk". Plants of the World Online . Royal Botanic Gardens, Kew.
  15. "Papuodendron lepidotum C.T.White". Plants of the World Online . Royal Botanic Gardens, Kew.