Zamia roezlii

Zamia roezlii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Zamia
Species:
Z. roezlii
Binomial name
Zamia roezlii
Synonyms[2]
  • Aulacophyllum roezlii (Regel ex Linden) Regel

Zamia roezlii (chigua[3]) is a species of cycad, a palm-like pachycaulous plant in the family Zamiaceae.[2][4] It is found in Colombia (Choco, Nariño, Valle del Cauca, and Amazonas departments) and the Pacific coast of Ecuador. It is named for the Czech botanist Benedikt Roezl. A single sperm cell from Zamia roezlii is about 0.4 mm in length and is visible to the unaided eye, being the world's largest plant sperm cell. Drosophila bifurca, a species of fruit fly, has sperm that are 5.8 cm long, albeit mostly coiled tail.[5] The tree is up to 22 feet (seven meters) in height with fronds up to ten feet (three metres) long bearing leaflets up to twenty inches (fifty-one centimetres) long and six inches (fifteen centimetres) wide.[6]

References

  1. ^ Lopez-Gallego, C.; Calonje, M. (2023) [errata version of 2022 assessment]. "Zamia roezlii". IUCN Red List of Threatened Species. 2022: e.T42178A243411399. doi:10.2305/IUCN.UK.2022-1.RLTS.T42178A243411399.en. Retrieved 12 November 2024.
  2. ^ a b "Zamia roezlii Regel ex Linden". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved June 27, 2025.
  3. ^ "Zamia roezlii (Chigua) description". www.conifers.org. Retrieved 2024-10-23.
  4. ^ "Zamia roezlii Regel ex Linden". Catalogue of Life. Species 2000. n.d. Retrieved June 27, 2025.
  5. ^ Pitnick, S.; Spicer, G.S.; Markow, T.A. (1995). "How long is a giant sperm?". Nature. 375 (6527): 109. Bibcode:1995Natur.375Q.109P. doi:10.1038/375109a0. PMID 7753164. S2CID 4368953.
  6. ^ Stevenson, Dennis (April–June 2004). "Cycads of Colombia". Bot. Rev. 70 (2): 228. doi:10.1663/0006-8101(2004)070[0194:COC]2.0.CO;2. S2CID 27405158.
Wikimedia Commons has media related to Zamia roezlii.


This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.