Chiricahua Mtns 2014
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Chiricahua Mtns Road Trip Spring 2014: Plant Species (1)
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Boyce-Thompson Arboretum

Mojave hedgehog cactus (Echinocereus mojavensis = E. triclochidiatus).

Red-flowered (chenille) prickly-pear (Opuntia aciculata) with lynx spider.

Superstition Mtns

Saguaro cactus (Carnegiea gigantea) and palo verde nurse tree (Parkinsonia microphylla).

Saguaro cactus (Carnegiea gigantea) in bloom at Lost Dutchman State Park.

Wilcox, Arizona

Halfmoon locoweed (Astragalus allochrous var. playanus).

Chiricahua Mtns (Chiricahua National Monument)

Mexican vervain (Verbena ciliata = Verbena (Glandularia) bipinnatifida var. ciliata).

Apache plume (Fallugia paradoxa).

Alligator juniper (Juniperus deppeana).

Rough Bark Arizona Cypress

Rough-bark Arizona cypress (Hesperocyparis (Cupressus) arizonica).

A Comparison With California Cypresses (10 species & 2 varieties)

Seed cones from cypress groves in California, Arizona and outside the U.S.

A - N: New World Cypress (Hesperocyparis)
formerly placed in the genus Cupressus
O - R: Old World Cypress (Cupressus)
Includes the Italian Cypress
S: False Cypress (Chamaecyparis)
Includes the Port Orford Cedar
T - U: Nootka Cypress (Callitropsis) Includes
Alaska Cedar; may become Hesperocyparis

A. Tecate cypress (Hesperocyparis forbesii), B. Sargent cypress (H. sargentii), C. Piute cypress (H. nevadensis), D. Cuyamaca cypress (H. stephensonii), E. Santa Cruz cypress (H. abramsiana, F. Monterey cypress (H. macrocarpa), G. Gowen cypress (H. goveniana), H. Mendocino cypress (H. pygmaea), I. Macnab cypress (H. macnabiana), J. Modoc cypress (H. bakeri), K. Smooth-bark Arizona cypress (H. glabra), L. Rough-bark Arizona cypress (H. arizonica), M. San Pedro Martir cypress (H. montana), N. Mexican cypress (H. lusitanica), O. Italian cypress (Cupressus. sempervirens), P. Sahara cypress (C. dupreziana), Q. Kashmir cypress (C. cashmeriana), R. Mourning cypress (C. funebris), S. Port Orford cedar (Chamaecyparis lawsoniana), T. Alaska cedar (Callitropsis nootkatensis), U. Leyland cypress Callitropsis x leylandii).

Note: The Port Orford cedar (S) remains in the genus Chamaecyparis, while the and Alaska cedar (T) is now placed in the genus Callitropsis, while the Leyland cypress (U) becomes Callitropsis x leylandii. Callitropsis may be rejected by 2012 Botanical Congress and possibly changed to Xanthocyparis or another genus. Groupings of species, such as Hesperocyparis (Callitropsis), Chamaecyparis, Juniperus and Old World Cupressus represent separate branches (clades) in computer-generated phylogenetic trees.

  Cupressus: Remarkable Conifers Native To California  
Selection & Genetic Drift In Cypresses (Cupressus)