Palau hackberry (Celtis palauensis)

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Celtis palauensis: Botanical Information and Characteristics

Endemic to the island environments of Palau, Celtis palauensis thrives as a distinctive component of the local Pacific flora. This woody plant is grouped within the Cannabaceae family and is recognized as part of the hackberry genus. It was initially documented and described by botanists Ryozo Kanehira and Sumihiko Hatusima, expanding the scientific understanding of regional biodiversity.

As a wild species native to a highly specific geographical area, it has naturally adapted to the tropical climate of its native habitat. Studying such localized species is crucial for mapping the biogeographical distribution and evolutionary history of the Cannabaceae family across the Pacific islands.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes (Vascular Plants)
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms
  • ∟ eudicots
  • ∟ Superrosids
  • ∟ rosids
  • ∟ order Rosales
  • ∟ family Cannabaceae (Hemp family)
  • ∟ genus Celtis (Hackberry)
  • ∟ species Celtis palauensis (Palau hackberry)

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Morphology

The vegetative features of Celtis palauensis largely correspond to the typical habit of tropical hackberries. The plant forms alternately arranged leaves whose shape and texture are adapted to high precipitation levels. Distinct leaf venation traverses the blade, which is a characteristic feature within the genus.

The trunk generally develops smooth to slightly fissured bark. As with many related species in the hemp family (Cannabaceae), the wood is structurally robust. Precise anatomical details of the flower structure indicate primary wind pollination, forming small, rather inconspicuous inflorescences.

Interesting facts

Island endemics such as Celtis palauensis are of outstanding importance for biogeographical research. They impressively demonstrate how plant populations evolve over millennia in geographical isolation.

  • The discovery coincided with a period of intensive botanical exploration of Micronesia during the early 20th century.
  • The species exhibits specific morphological adaptations to the maritime island climate.
  • It represents a distinct evolutionary lineage of hackberries in the Pacific.

Geography of distribution

  • Palau

Sources

  • GBIF
  • World Flora Online (WFO)
  • Catalogue of Life

Technical Information

External Databases: GBIF, POWO, Tropicos

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