1	"Spray branchlets, at least in part, arranged in one plane to give a flattened appearance"	2
1	"Sprays never arranged in one plane, branchlets spreading in different directions"	6
2	"Sprays partly flattened, not pendulous"	3
2	"Sprays flattened, pendulous"	4
3	"Widespreading tree; cones more or less round, in clusters, scales with protruding points"	"Cupressus macnabiana"
3	"Narrowly conical tree; cones large, oblong and lumpy, scales without protruding points"	"Cupressus sempervirens"
4	"Individual spray branchlets slightly curved; leaves green, closely pressed to stems; cones hardly waxy"	"Cupressus torulosa"
4	"Spray branchlets not curved; leavss at least slightly spreading, grey-blue; cones waxy, at least at first"	5
5	"Sprays long-pendulous; leaves with white markings; cones about 1 cm long with about 10 scales"	"Cupressus cashmeriana"
5	"Sprays short-pendulous; leaves without white markings; cones about 1.5 cm long with 6-8 scales"	"Cupressus C. lusitanica var. benthamii"
6	"Cones 1-1.75 cm wide"	7
6	"Cones more than 1.75 cm wide"	9
7	"Sprays more or less pendulous, 'square' in section at tip; leaves blue-green, pointed; young cones waxy white"	"Cupressus lusitanica"
7	"Sprays not pendulous; leaves green, slightly pointed; cones sometimes waxy but hardly white"	8
8	"Leaves dark green, lemon-scented, tip rounded; cones grey at first (not waxy), seed dark brown or black"	"Cupressus goveniana"
8	"Leaves dusty green, hardly scented; cones briefly waxy grey; seed medium brown"	"Cupressus arizonica"
9	"Leaves grey or waxy blue; cone scales 6-8 (rarely 10)"	10
9	"Leaves green, not waxy blue; cone scales 8-14"	11
10	"Branches more or less horizontal; bark persistent, fibrous; leaf gland obscure; seed not waxy blue"	"Cupressus arizonica"
10	"Branches ascending; bark peeling in plates; leaves with white resin dots; seed waxy blue"	"Cupressus glabra"
11	"Mostly broad tree; leaves more than 1 mm wide, new foliage lemon-scented; cones almost spherical; seeds warty"	"Cupressus macrocarpa"
11	"Narrow-conical tree; leaves 0.8-1 mm wide; cones mostly oblong and lumpy; seed smooth"	"Cupressus sempervirens"