Dioscoreaceae

Dioscoreaceae R.Br., Prodr. 294. 1810. nom. cons. 'Yam Family'

Characteristic Features:

Hermaphroditic or dioecious, rhizomatous or tuberous perennial herbs
Leaves simple or palmate and net-veined
Flowers trimerous and epigynous

Diversity:

World- 6 genera 653 species (ThePlant List 2013); 9 genera, 715 species (Christenhusz & Byng 2016); 3 genera, 630 species (Mabberely 2017); 4 genera, 644 species (CoL 2021)
India - 3 genera 33 species (Karthikeyan 2000); 2 genera, 38 species (BSI, 2021)
Indian Himalaya- 1 genus, 28 species (Singh et al. 2019)
Uttarakhand - 1 genus 10 species (Uniyal et al. 2007)

General Characters:

Dioscoreaceae in Watson & Dallwitz (1992 onwards)
Dioscoreaceae in Stevens (2001 onwards)
Dioscoreaceae in POWO 2021 (Plants of the World Online)
Dioscoreaceae in Wikipedia

Systematic Position of the Family in Different Systems of Classifications:

Systematic position in 2-Superkingdom, 7-Kingdom classification of Ruggiero et al. (2015)

Super Kingdom- Eukaryota, Kingdom- Plantae, Subkingdom- Viridiplantae, Infrakingdom- Streptophyta, Superphylum- Embryophyta, Phylum- Tracheophyta, Subphylum- Spermatophytina, Superclass- Angiospermae, Class- Magnoliopsida, Superorder- Lilianae, Order- Dioscoreales

Bentham & Hooker (1862-83)

Class : Monocotyledons
Series : Epigynae

Engler & Prantl (1887-1915)

Kingdom : Plantae
Division : Embryophyta Siphonogama
Subdivision: Angiospermae
Class : Monocotyledoneae
Order : Liliflorae

Hutchinson (1973)

Phylum : Angiospermae
Subphylum: Monocotyledones
Division : Corolliferae
Order : Dioscoreales

Cronquist (1988)

Division : Magnoliophyta
Class : Liliopsida
Subclass : Liliidae
Order : Liliales

Thorne & Reveal (2007)

Class : Magnoliopsida
Subclass : Liliidae
Super Order: Dioscoreanae
Order : Dioscoreales

Takhtajan (2009)

Phylum : Magnoliophyta
Class : Liliopsida
Subclass : Liliidae
Super Order: Dioscoreanae
Order : Dioscoreales

Reveal (2012)

Class : Equisetopsida
Subclass : Magnoliidae
Super Order: Lilianae
Order : Dioscoreales

APG-IV (2016)

Clade : Angiosperms
Clade : Monocots
Order : Dioscoreales

Shipunov (2016)

Class : Angiospermae
Subclass : Liliidae
Order : Liliales
Suborder : Dioscoreineae

Genera & Species in Pantnagar

To see larger image please click on the name

~Wild Flora~

Dioscorea bulbifera L. (Male)