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 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
- ^ Donaldson, J.S. 2003. Zamia roezlii. 2006 IUCN Red List of Threatened Species. Downloaded on 24 August 2007.
- ^ 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.
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