Cupressaceae Calocedrus...
Transcript of Cupressaceae Calocedrus...
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CupressaceaeCalocedrus decurrensincense cedar
• scale leaves lustrous, decurrent, much longer than wide• laterals nearly enclosing facials• seed cone with 3 pairs of scale/bract and one central
Sight ID characteristics
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NOTES AND SKETCHES
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CupressaceaeChamaecyparis lawsonianaPort Orford cedar
• scale leaves with glaucous bloom• tips of laterals on older stems diverging from branch (not always
too obvious)• prominent white “x” pattern on underside of branchlets• globose seed cones with 6-8 peltate cone scales – no boss on
apophysis
Sight ID characteristics
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NOTES AND SKETCHES
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CupressaceaeChamaecyparis thyoidesAtlantic white cedar
• branchlets slender, irregularly arranged (not in flattened sprays).• scale leaves blue-green with white margins, glandular on back• laterals with pointed, spreading tips, facials closely appressed• bark fibrous, ash-gray• globose seed cones 1/4, 4-5 scales, apophysis armed with
central boss, blue/purple and glaucous when young, maturing in fall to red-brown
Sight ID characteristics
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NOTES AND SKETCHES
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CupressaceaeCallitropsis nootkatensisAlaska yellow cedar
• branchlets very droopy • scale leaves more or less glabrous – little glaucescence• globose seed cones with 6-8 peltate cone scales – prominent
boss on apophysis• tips of laterals tightly appressed to stem (mostly) – even on
older foliage (not always the best character!)
Sight ID characteristics
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NOTES AND SKETCHES
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CupressaceaeTaxodium distichumbald cypress
• buttressed trunks and knees• leaves linear, distichous• deciduous - leaves usually shed as a branchlet• branchlets (and leaves) alternately arranged• seed cone round - does not open to release seeds – rather
disintegrates/rots to release seeds.
Sight ID characteristics
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NOTES AND SKETCHES
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CupressaceaeMetasequoia glyptostroboidesdawn redwood
• leaves linear, opposite• deciduous – leaves usually shed as a branchlet• branchlets opposite on determinate short shoots• seed cone with 4 rows of oppositely arranged bract/scales
Sight ID characteristics
Native to south-central China! widely cultivated
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NOTES AND SKETCHES
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CupressaceaeSequoia sempervirenscoast redwood
• two types of leaves – sun and shade• shade leaves green above, two white stomatal bands below• evergreen• terminal bud scars demarcate obvious branchlets - leaves shed
in branchlets• thick fibrous, bark (12” thick)• 1” seed cone with spirally arranged, peltate bract/scales
Sight ID characteristics
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NOTES AND SKETCHES
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CupressaceaeSequoiadendron giganteumCalifornia big tree, giant sequoia
• leaves subulate, overlapping, blueish green “metallic green”• seed cones 2.5” long with spirally arranged, peltate bract/scales• seeds with reddish pigment (powder)
Sight ID characteristics
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NOTES AND SKETCHES