Juniperus blancoi var. mucronata | Threatened Conifers of the World (en-GB)

Cupressaceae

Juniperus blancoi var. mucronata (R.P.Adams) Farjon

Endemic to northwestern Mexico in the States of Chihuahua and Sonora where it is only known from two herbarium collections

Distribution

Mexico: Chihuahua, Sonora. Probably limited to a small area; a further search in the region may reveal other localities.

Habitat and Ecology

Insufficiently known

Conservation Status

Global status

Vulnerable D1+2

Global rationale

This taxon is only known from two collections by its author, Robert P. Adams, made on 20 December 1998 only a few kilometres separate from each other. It is likely that it occurs more abundantly in this area of northern Mexico, but a search of the herbaria has not resulted in further specimens. Therefore its EOO is likely to be small, perhaps less than 100km² and its AOO smaller than 20km² with fewer than 1000 mature individuals.

Global threats

Insufficiently known

References and further reading

Adams, R.P. (2000). Systematics of smooth leaf margin Juniperus of the western hemisphere based on leaf essential oils and RAPD DNA finger printing. Biochemical Systematics and Ecology 28:149-162.
Adams, R.P., M.S. González Elizondo, M. González Elizondo & Slinkman, E. 2006. DNA fingerprinting and terpenoid analysis of Juniperus blancoi var. huehuentensis (Cupressaceae), a new subalpine variety from Durango, Mexico. Biochemical Systematics and Ecology 34: 205-211.
Farjon, A. (2005). A Monograph of Cupressaceae and Sciadopitys. Royal Botanic Gardens, Kew.
Farjon, A. (2013). Juniperus blancoi var. mucronata. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. <www.iucnredlist.org>. Downloaded on 06 July 2013.