'''Austrocedrus''' is a
genus of
conifer belonging to the cypress family
Cupressaceae. It has only one
species, '''Austrocedrus chilensis''', and is
endemic to the
Valdivian temperate rain forests and the adjacent drier steppe-forests of central-southern
Chile and western
Argentina. It is known in its native area as 'Ciprés de la Cordillera' or 'Cordilleran Cypress', and elsewhere by the scientific name as 'Austrocedrus', or sometimes as 'Chilean Incense-cedar'.
It is a member of subfamily Callitroideae, a group of distinct
southern hemisphere genera associated with the
Antarctic flora. It is closely related to the
New Zealand and
New Caledonian genus ''
Libocedrus'', and some botanists treat it within this genus, as ''Libocedrus chilensis'', though it resembles ''Libocedrus'' less than the other South American cypress genus ''
Pilgerodendron'' does.
It is a slow-growing, narrowly conical
evergreen tree which grows from 10-24 m in height, with scale-like
leaves arranged in decussate pairs. The leaves are unequal in size, with pairs of larger (4-8 mm) leaves alternating with pairs of smaller (2-3 mm) leaves, giving a flattened shoot. Each leaf has a prominent white
stomatal stripe along the outer edge. The
cones are 5-10 mm long, with four scales, two very small sterile basal scales and two large fertile scales; each fertile scale has two winged
seeds 3-4 mm long.
Cordilleran Cypress is found in the evergreen mountain forests of the
Andes, usually on drier sites within the rainforest, in open pure woods (where it is often locally dominant on the eastern slopes of the Andes in southwestern Argentina) or in association with ''
Araucaria araucana'' and ''
Nothofagus'' species.
External links
★
Gymnosperm Database: ''Austrocedrus''
★ Photos of
cones and
foliage
★
''Austrocedrus chilensis'' in Chilebosque