Silene stockenii

Silene stockenii is a species of flowering plant in the Caryophyllaceae first described in 1973.^[2] The specific epithet is named after Christopher Maitland Stocken, who discovered it in 1962 in Bornos.^[3] It is native to Spain,^[2] where it is endemic to grasslands growing in calcareous soil on formations made from calcarenite (a type of limestone)^[4] west of Cádiz in Andalusia.^[1] It is currently listed as critically endangered.^[1] In 1993, the number of individuals belonging to this species was estimated to be below 2000.^[5]

Silene stockenii
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Caryophyllaceae
Genus:	Silene
Species:	S. stockenii
Binomial name
Silene stockenii Chater

Silene stockenii is a gynodioecious–gynomonoecious species.^[6] In this species 7% of individuals are females, 53.5% are hermaphrodites, and 39.5% are intermediate.^[5]

References

1. Bañares, Á.; Blanca, G.; Güemes, J.; Moreno, J. C.; Ortiz, S., eds. (2004). Atlas y libro rojo de la flora vascular amenazada de España (in Spanish). Madrid: Dirección General de Conservación de la Naturaleza. pp. 502–503. ISBN 84-8014-521-8. Available here via ResearchGate. Retrieved 2022-01-04.
2. POWO (2022): Silene stockenii Chater. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:158446-1. Retrieved 04 January 2022.
3. Chater, A. O. (1973). "A new species of Silene from South Spain" (PDF). Lagascalia. 3 (2): 219–222.
4. Orme, G. R. (1982). "Calcarenite. In: Beaches and Coastal Geology.". Encyclopedia of Earth Sciences Series. New York, NY: Springer. p. 186. doi:10.1007/0-387-30843-1_86. ISBN 978-0-87933-213-6.
5. Talavera, S.; Arista, M.; Salgueiro, F. J. (1996). "Population Size, Pollination and Breeding System of Silene stockenii Chater (Caryophyllaceae), an Annual Gynodioecious Species of Southern Spain". Botanica Acta. 109 (4): 333–339. doi:10.1111/j.1438-8677.1996.tb00581.x. ISSN 1438-8677.
6. Casimiro-Soriguer, Inés; Buide, Maria L.; Narbona, Eduardo (2015-01-01). "Diversity of sexual systems within different lineages of the genus Silene". AoB Plants. 7: plv037. doi:10.1093/aobpla/plv037. ISSN 2041-2851. PMC 4433491. PMID 25862920.