Zamia roezlii

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Zamia roezlii
Zamia Roezlii 550 DSC 0158 - young plant leave.jpg

Near Threatened (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
(unranked): Gymnosperms
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Zamia
Species:
Z. roezlii
Binomial name
Zamia roezlii
Linden

Zamia roezlii is a species of cycad, a plant in the family Zamiaceae. 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.[2]

References[]

  1. ^ Stevenson, D.W. (2010). "Zamia roezlii". IUCN Red List of Threatened Species. 2010: e.T42178A10650286. doi:10.2305/IUCN.UK.2010-3.RLTS.T42178A10650286.en. Retrieved 16 November 2021.
  2. ^ Pitnick, S.; Spicer, G.S.; Markow, T.A. (1995). "How long is a giant sperm?". Nature. 375 (6527): 109. doi:10.1038/375109a0. PMID 7753164. S2CID 4368953.


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