What’s a dichotomous key?
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- Group 1Lycophytes, Monilophytes
- Group 2Gymnosperms
- Group 3Monocots
- Group 4Woody angiosperms with opposite or whorled leaves
- Group 5Woody angiosperms with alternate leaves
- Group 6Herbaceous angiosperms with inferior ovaries
- Group 7Herbaceous angiosperms with superior ovaries and zygomorphic flowers
- Group 8Herbaceous angiosperms with superior ovaries, actinomorphic flowers, and 2 or more distinct carpels
- Group 9Herbaceous angiosperms with superior ovaries, actinomorphic flowers, connate petals, and a solitary carpel or 2 or more connate carpels
- Group 10Herbaceous angiosperms with superior ovaries, actinomorphic flowers, distinct petals or the petals lacking, and 2 or more connate carpels
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- Dichotomous Key
- Cupressaceae
Cupressaceae
See list of 3 genera in this family-
1a. Seed cones fleshy and resembling a firm berry, the scales not opening [Fig. 43]; seeds not winged; abaxial glands on leaves elliptic to elongate
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1b. Seed cones woody, the scales opening and exposing the axis; seeds winged; abaxial glands on leaves circular or oval to elliptic
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2a. Branchlets terete or tetragonous; alternating pairs of leaves similar; seed cones nearly spherical, with peltate scales; abaxial leaf glands circular [Fig. 41]
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2b. Branchlets flat; alternating pairs of leaves dimorphic—those of the upper and lower rank flat, those of the lateral ranks folded; seed cones ellipsoidal, with basifixed scales; abaxial leaf glands oval to elliptic [Fig. 42]
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Show photos of: Each photo represents one genus in this family.