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	©Copyright 1993 by the Regents of the University of California Print edition is available from the University of California Press

	The second edition of The Jepson Manual (2012) is available from the University of California Press
	See also the Jepson eFlora, which parallels the Second Edition

CUPRESSACEAE

CYPRESS FAMILY

Jim A. Bartel

Shrub, tree, evergreen, monoecious or dioecious
Leaves cauline, opposite and 4-ranked or whorled in 3's and 6-ranked, generally scale-like, decurrent, completely covering young stems
Pollen cone small, axillary or terminal
Seed cone ± fleshy to woody, generally hard at maturity; scales opposite or whorled
Seeds 1–many per scale, generally angled or winged, generally wind-dispersed
Genera in family: 17 genera, ± 120 species: worldwide; all North America genera cultivated. [Elias 1980 Complete Trees North America] Juvenile leaves needle- or awl-like, sometimes present in ± mature plants, especially in response to grazing or infection, especially in Cupressus, Juniperus.

CUPRESSUS

CYPRESS

Large shrub, tree, often pyramidal in youth, monoecious
Stem: young shoots generally cylindric (sometimes 4-angled or flat), generally arrayed in 3-dimensional clusters
Leaves opposite, 4-ranked, scale-like, closely appressed, overlapping
Pollen cone generally yellow
Seed cone 6–50 mm, woody, ± spheric to widely cylindric, maturing 1st or 2nd year, often closed > 2 years; scales 6–12, peltate, abutting, shield- or wedge-shaped; projection often present, small, pointed, generally less visible in age
Seeds 2–many per scale, flat, winged; cotyledons 2–5
Chromosomes: 2n=22 for all reports
Species in genus: ± 22 species: w North America, Eurasia
Etymology: (Latin: cypress)
Reference: [Wolf 1948 Aliso 1:1–250]

Native

C. lawsoniana A. Murray bis

PORT ORFORD CEDAR, LAWSON CYPRESS

Tree 20–65 m, pyramidal in youth
Stem: trunk < 6 m diam; bark 15–25 cm thick, red-brown to tan, fibrous, fire-resistant; young shoots flat, arrayed in flat clusters, held ± horizontally, lower surfaces often paler
Leaf green, generally glaucous; glands generally visible; lateral leaf tips generally curved toward stem axis
Pollen cone 2–3 mm, 2–3 mm diam, oblong, pink to red; scales 5–6; pollen sacs 2 per scale
Seed cone 6–10 mm, spheric, red-brown; scales 7–10, projection ± 0
Seeds 2–5 per scale, 2–4 mm, generally with wart-like pitch pockets, light chestnut-brown, generally glandular
Ecology: UNCOMMON. Coastal conifer, mixed-evergreen, yellow-pine forests, often on serpentine
Elevation: < 1700 m.
Bioregional distribution: North Coast, Klamath Ranges, Outer North Coast Ranges
Distribution outside California: sw Oregon
Synonyms: Chamaecyparis l. (A. Murray bis) Parl
Horticultural information: IRR: 1, 2, 4, 5, 6, 15, 16, 17, 24 &SHD: 3, 7, 14, 18, 19, 20, 21, 22, 23; CVS
Recent taxonomic note: Chamaecyparis lawsoniana (A. Murray) Parl.