Edit History
[family OCHNACEAE]
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (2005) Author: B. Verdcourt, B.Sc., Ph.D.
Names
[family OCHNACEAE]
Information
Trees, shrubs or geophytic shrublets, less often annual or perennial herbs. Leaves alternate, simple (pinnate and opposite in Rhytidanthera, a small S American genus) often with numerous lateral veins and densely reticulate tertiary venation, entire to serrate or setulose; stipules entire to deeply divided, deciduous or persistent. Flowers hermaphrodite, almost always regular, solitary or in fascicles or raceme-like, paniculate or cymose inflorescences; pedicels often articulated. Sepals (3–4–)5(–6–10), free, usually quincuncially imbricate, persistent or deciduous. Petals (4–)5(–6–12), free, contorted in bud, often clawed, deciduous. Stamens few to many, with persistent filaments; anthers linear, basifixed, dehiscing lengthwise or by apical pores; staminodes present outside stamens in a few genera (Sauvagesia and allies). Ovary superior, sessile, syncarpous, entire to lobed with style and 2–5 parietal placentas each with 1–many ovules, or with (3–)5(–6–15) lobes each with 1 ovule and style gynobasic; styles as many as placentas or ovary-lobes but completely united or free only at the apex with one globose or lobed stigma or separate stigmas. Fruit a collection of 3–12 one-seeded drupelets borne on a fleshy enlarged receptacle, a nut surrounded by unequal enlarged sepals or a septicidal 2–5-valved, 1–many-seeded capsule. Seeds with or without endosperm.
Range
A family of 26 genera and about 360 species, widespread in the tropics and subtropics of both Old and New Worlds.
Notes
Corner, Seeds Dicotyledons 1: 208 (1976) was convinced that Sauvagesia and its allies belong to a separate family not closely related to Ochnaceae but on account of fruit and seed characters close to Violaceae as suggested by Benth. & Hook. G.P. 1: 114–121 (1862). Lophira was formerly placed in the Dipterocarpaceae. M.C.E. Amaral (E.J. 113: 105–196 (1991)) has given an account of the phylogenetic systematics of the family. She confirms that the two genera mentioned above belong in the Ochnaceae but her paper does not help in the decision of the division of the Ochneae e.g. the Gomphia/Ouratea problem.
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (2005) Author: B. Verdcourt, B.Sc., Ph.D.
Names
[family OCHNACEAE]
Information
Trees, shrubs or geophytic shrublets, less often annual or perennial herbs. Leaves alternate, simple (pinnate and opposite in Rhytidanthera, a small S American genus) often with numerous lateral veins and densely reticulate tertiary venation, entire to serrate or setulose; stipules entire to deeply divided, deciduous or persistent. Flowers hermaphrodite, almost always regular, solitary or in fascicles or raceme-like, paniculate or cymose inflorescences; pedicels often articulated. Sepals (3–4–)5(–6–10), free, usually quincuncially imbricate, persistent or deciduous. Petals (4–)5(–6–12), free, contorted in bud, often clawed, deciduous. Stamens few to many, with persistent filaments; anthers linear, basifixed, dehiscing lengthwise or by apical pores; staminodes present outside stamens in a few genera (Sauvagesia and allies). Ovary superior, sessile, syncarpous, entire to lobed with style and 2–5 parietal placentas each with 1–many ovules, or with (3–)5(–6–15) lobes each with 1 ovule and style gynobasic; styles as many as placentas or ovary-lobes but completely united or free only at the apex with one globose or lobed stigma or separate stigmas. Fruit a collection of 3–12 one-seeded drupelets borne on a fleshy enlarged receptacle, a nut surrounded by unequal enlarged sepals or a septicidal 2–5-valved, 1–many-seeded capsule. Seeds with or without endosperm.
Range
A family of 26 genera and about 360 species, widespread in the tropics and subtropics of both Old and New Worlds.
Notes
Corner, Seeds Dicotyledons 1: 208 (1976) was convinced that Sauvagesia and its allies belong to a separate family not closely related to Ochnaceae but on account of fruit and seed characters close to Violaceae as suggested by Benth. & Hook. G.P. 1: 114–121 (1862). Lophira was formerly placed in the Dipterocarpaceae. M.C.E. Amaral (E.J. 113: 105–196 (1991)) has given an account of the phylogenetic systematics of the family. She confirms that the two genera mentioned above belong in the Ochnaceae but her paper does not help in the decision of the division of the Ochneae e.g. the Gomphia/Ouratea problem.
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (2005) Author: B. Verdcourt, B.Sc., Ph.D.
Names
[family OCHNACEAE]
Information
Trees, shrubs or geophytic shrublets, less often annual or perennial herbs. Leaves alternate, simple (pinnate and opposite in Rhytidanthera, a small S American genus) often with numerous lateral veins and densely reticulate tertiary venation, entire to serrate or setulose; stipules entire to deeply divided, deciduous or persistent. Flowers hermaphrodite, almost always regular, solitary or in fascicles or raceme-like, paniculate or cymose inflorescences; pedicels often articulated. Sepals (3–4–)5(–6–10), free, usually quincuncially imbricate, persistent or deciduous. Petals (4–)5(–6–12), free, contorted in bud, often clawed, deciduous. Stamens few to many, with persistent filaments; anthers linear, basifixed, dehiscing lengthwise or by apical pores; staminodes present outside stamens in a few genera (Sauvagesia and allies). Ovary superior, sessile, syncarpous, entire to lobed with style and 2–5 parietal placentas each with 1–many ovules, or with (3–)5(–6–15) lobes each with 1 ovule and style gynobasic; styles as many as placentas or ovary-lobes but completely united or free only at the apex with one globose or lobed stigma or separate stigmas. Fruit a collection of 3–12 one-seeded drupelets borne on a fleshy enlarged receptacle, a nut surrounded by unequal enlarged sepals or a septicidal 2–5-valved, 1–many-seeded capsule. Seeds with or without endosperm.
Range
A family of 26 genera and about 360 species, widespread in the tropics and subtropics of both Old and New Worlds.
Notes
Corner, Seeds Dicotyledons 1: 208 (1976) was convinced that Sauvagesia and its allies belong to a separate family not closely related to Ochnaceae but on account of fruit and seed characters close to Violaceae as suggested by Benth. & Hook. G.P. 1: 114–121 (1862). Lophira was formerly placed in the Dipterocarpaceae. M.C.E. Amaral (E.J. 113: 105–196 (1991)) has given an account of the phylogenetic systematics of the family. She confirms that the two genera mentioned above belong in the Ochnaceae but her paper does not help in the decision of the division of the Ochneae e.g. the Gomphia/Ouratea problem.
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