Chloranthaceae

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Chloranthaceae

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<<Flowers>Stamens>Anthers

anthers 2- or 4-locular, linear to oblong, opening with longitudinal slits,1
1. 004-001-001

<<Flowers>Stamens>Connective

connective often expanded or extended.2
2. 004-001-002

<<Fruits>Seeds>Embryo

embryo small with 2 minute cotyledons.3
3. 006-001-001

<<Pistil>Carpels>Ovules

ovule 1, orthotropous.4
4. 005-001-002

<<Pistil>Carpels>Stigma

stigma sessile,5
5. 005-001-001

<Flowers>Stamens

stamens 1-3, in bisexual flowers adnate to ovary,6
6. 004-001

<Fruits>Seeds

seeds with well-developed starchy endosperm,7
7. 006-001

<Inflorescences>Position

axillary or terminal8
8. 003-001

<Leaves>Blade

blades pinnately veined, usually glabrous, margins dentate.9
9. 002-002

<Leaves>Petiole

petioles connate at base, stipulates present, petiolar;10
10. 002-001

<Pistil>Carpels

carpel 1,11
11. 005-001

Description

Trees, shrubs or herbs. Leaves opposite, decussate, simple; petioles connate at base, stipulates present, petiolar; blades pinnately veined, usually glabrous, margins dentate. Inflorescences capitate, spicate or racemose, axillary or terminal. Flowers small, unisexual (monoecious or dioecious) or bisexual, without perianth or with 3-lobed calyx, subtended by 1-3 bracts or ebracteate; stamens 1-3, in bisexual flowers adnate to ovary, anthers 2- or 4-locular, linear to oblong, opening with longitudinal slits, connective often expanded or extended. Pistillate and bisexual flowers epigynous, hemi-epigynous or naked; carpel 1, stigma sessile, ovule 1, orthotropous. Fruit a berry with a hard seed coat or a drupe with a fragile, stony endocarp (Hedyosmum); seeds with well-developed starchy endosperm, embryo small with 2 minute cotyledons.

Distribution

Guianas present, Neotropics present, moist tropics of the world present
About 75 species in 4 genera, all found in the moist tropics of the world; in the Neotropics 1 genus with 44 species; in the Guianas 1 species.

Flowers

Flowers small, unisexual (monoecious or dioecious) or bisexual, without perianth or with 3-lobed calyx, subtended by 1-3 bracts or ebracteate;12
12. 004

Fruits

Fruit a berry with a hard seed coat or a drupe with a fragile, stony endocarp (Hedyosmum);13
13. 006

Habit

Trees, shrubs or herbs.14
14. 001

Individuals Association

Guyana, Boom, B.M. et al. 9200 Guyana, Hahn, W.J. et al. 5481a Guyana, Boom, B.M. et al. 9063

Inflorescences

Inflorescences capitate, spicate or racemose, .15
15. 003

Leaves

Leaves opposite, decussate, simple;16
16. 002

Pistil

Pistillate and bisexual flowers epigynous, hemi-epigynous or naked;17
17. 005