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
- Hyacinthaceae
Hyacinthaceae
See list of 4 genera in this family-
1a. Tepals evidently connate for some distance [Fig. 127]; stamens epipetalous
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2b. Perianth open-campanulate; tepals 15–25 mm long, connate for less than ⅓ their length; leaf blades 10–20 mm wide; racemes with usually 4–10 flowers, open, without apical sterile flowers
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1b. Tepals essentially distinct (i.e., connate for less than 1⁄10 their total length) [Fig. 128]; stamens free or inserted near the base of the tepals
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3a. Tepals white, each with a green abaxial stripe, 15–30 mm long; stamens dimorphic as to length, with flat filaments; leaves mostly 20–60 cm long, with a white adaxial stripe
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3b. Tepals blue (rarely white), 12–16 mm long; stamens monomorphic, the filaments not conspicuously flattened; leaves mostly 10–15 cm long, lacking a white stripe
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Show photos of: Each photo represents one genus in this family.