familyGinkgoaceae
Show Lower Taxa
Difference between revisions of "Ginkgoaceae"
Common names: Maidenhair Tree Family
Treatment appears in FNA Volume 2. Treatment on page 350.
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|discussion=<p>Genus 1 (6+ known from fossils), species 1.</p> | |discussion=<p>Genus 1 (6+ known from fossils), species 1.</p> | ||
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| + | |text=Page, C. N. 1990. Coniferophytina: Ginkgoaceae. In: K. Kubitzki et al., eds. 1990+. The Families and Genera of Vascular Plants. 1+ vol. Berlin etc. Vol. 1, pp. 284--289. | ||
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|distribution=Native to China;cultivated in the flora. | |distribution=Native to China;cultivated in the flora. | ||
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Latest revision as of 20:24, 5 November 2020
Trees, deciduous, dioecious (possibly rarely monoecious). Bark gray, furrowed, with flattened ridges. Long shoots and short (spur) shoots present. Roots fibrous to woody. Leaves simple, alternate to fascicled, stomates abaxial; apices deeply cleft to truncate; petioles equal to or exceeding blades; resin canals absent. Pollen cones borne on spurs, catkinlike; sporophylls distributed along axis; bracts absent; pollen spheric, not winged. Seed cones absent; ovules 2, pedunculate, subtended by collar believed to comprise 2 modified megasporophylls, borne on spurs. Seeds with fleshy outer coat, inner coat hard; cotyledons 2–3.
Distribution
Native to China, cultivated in the flora.
Discussion
Genus 1 (6+ known from fossils), species 1.
Selected References
Lower Taxa
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