Cupressaceae

Cupressaceae, Cypress family
Scientific classification
Kingdom: Plantae Division: Pinophyta Class: Pinopsida Order: Pinales Family: Cupressaceae
Genera
Actinostrobus Athrotaxis Austrocedrus Callitris - Cypress-pine Calocedrus - Incense-cedar Chamaecyparis - Cypress Cryptomeria - Sugi Cunninghamia - Cunninghamia Cupressus - Cypress Diselma - Diselma Fitzroya - Alerce Fokienia - Fujian cypress Glyptostrobus - Chinese swamp cypress Juniperus - Juniper Libocedrus Metasequoia - Dawn redwood Microbiota - Microbiota Neocallitropsis Papuacedrus ! (Libocedrus) Pilgerodendron ! (Libocedrus) Platycladus - Chinese arborvitae Sequoia - Coast redwood Sequoiadendron - Giant sequoia Taiwania - Taiwania Taxodium - Bald cypress Tetraclinis Thuja - Thuja or Arborvitae Thujopsis - Hiba Widdringtonia Xanthocyparis ! (Cupressus) - Nootka cypress ! - not accepted as distinct by all authors, who include them within the bracketed genus following

The Cupressaceae or Cypress family is a conifer family of cosmopolitan distribution. The family includes 27 to 30 genera (17 monotypic) with about 130-140 species. They are monoecious or (rarely) dioecious trees and shrubs from 1-112m (3-367 ft) tall. The bark of mature trees is commonly orange- to red- brown and of stringy texture, often peeling in vertical strips, but smooth, scaly or hard and square-cracked in some species. The leaves are either spiral, decussate (opposite) or whorled, and more needle-like on young plants, or small and scale-like on mature plants of many (but not all) species. Most are evergreen, but three genera (Glyptostrobus, Metasequoia, Taxodium) are deciduous or include deciduous species. Cones are either woody, leathery, or (in Juniperus) berry-like and fleshy, with one to several ovules per scale. Seedlings usually have two cotyledons, but in some species up to six.

The family Cupressaceae is now widely regarded as including the Taxodiaceae, previously treated as a distinct family, but now shown not to differ from the Cupressaceae in any consistent characteristics. The one exception is the genus Sciadopitys, which is genetically distinct from the rest of the Cupressaceae, and is now treated in its own family: Sciadopityaceae.

The family is notable for including the largest, tallest, and stoutest individual trees in the world, and also the second longest lived species in the world:
Largest - Giant sequoia
Tallest - Coast redwood
Stoutest - Montezuma cypress
Second oldest - Alerce (after Great basin bristlecone pine)

Many of the species are important timber sources, especially in the genera Chamaecyparis, Cryptomeria, Cunninghamia, Cupressus, Sequoia, and Thuja. Many are also of great importance in horticulture, most notably Lawson's cypress, several junipers and the infamous hybrid Leyland cypress.

Table of contents

1 References 2 External Links 3 Links to other Pinales

References

• Arboretum de Villardebelle Cone images of many species
• Gymnosperm Database: Cupressaceae
• Flora of North America - Cupressaceae
• Digital Flora of Texas List of images of the Cupressaceae