EUPHORBIACEAE FAMILY PPT

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1. EUPHORBIACEAE
ChandreshM Thakor.
MUIS_Msc_Botany
Semester_02
Enrollmentnumber_22064601007

2. CLASSIFICATION –BENTHAMAND HOOKER
Kingdom:Plantae

Class:Dicotyledons

Subclass:Monochlamydae

Series:Unisexual

Family:Euphorbiaceae

3. IDENTIFICATION OF CLASSIFICATION
1.Class:Dicotyledons
•Venation reticulate
•Flowers pentamerous.
2.subclass:Monochlamydeae
•Flowers usually with one whorl
of parienth.

4. CONTINUE......
3.Series:Unisexuales
•Flowers unisexual.
•Perianthmuch reduced or absent.
•Ovules 1 to 2 per carpel.
4.Family:Euphorbiaceae
•Alternate leaves.
•Stamens 1 to indefinite (free or united).
•Gynoecium tricarpellary
•Ovary superior.

5. GENERAL CHARACTER
Thereareabout283generaand7,300
speciesinthisfamily.
•Habit
•Theplantsexhibitgreatvariationintheirhabit.
•Theplantsmaybeherbs,shrubsortrees.
•Root
•Taproot,branched.dbranched

6. CONTINUE......
Stem
•Herbaceous or woody, erect,
•The stem is branched.
•It may be cylindrical, angular or flat.
•Many stems possess spines.
• In many Euphorbia sp., the stems become,
fleshy, green and cactus like in appearance.

7. CONTINUE......
Leaves
•Thearrangementisusuallyalternatebut,
sometimestheyareopposite
•InmanyEuphorbiastheleavesare
scalyandcaducous.
•InmanyEuphorbiasp.,theyare
represented
byglandsorspines.

8. CONTINUE.....
Inflorescence:
•Theinflorescencevariesgreatly.
•Itmayberacemoseorcymoseor
sometimescomplex.
Flower:
•Theflowersareincomplete,regular,
actinomorphicandhypogynous.
•Theflowersarealwaysunisexual.

9. CONTINUE.....
Perianth:
•The perianthconsists of 4 or 5 sepals or petals.
•The aestivation is valvateor imbricate.
•Occasionally, both calyx and corolla are present,
e.g., Croton.
•. In majority of cases either calyx or corolla or
both are absent.
• In Ricinuscommunisthe calyx is present and
the corolla absent.

10. CONTINUE.....
Androecium:
•Thenumberofstamensvariesfromonetomany.
•InRicinussp.,usuallyfivestamensarepresent,
eachstamenisprofuselybranched.
•InJatrophatheyarearrangedintwowhorlseachof
fivestamens.
•Inmanythestamensareindefinite,e.g.,Croton.
Gynoecium:
•Threecarpels(tricarpellary),syncarpous;theovaryis
trilocular,superior.

11. CONTINUE.....
Fruit:
•drupefruit
•Thefruitsareschizocarpic.
Seeds:
•Theseedisendospermic.
Pollination:
Usuallyentomophilous,i.e.,through
theagencyofinsects.Onlycross-
pollinationtakesplace.

12. FLORAL FORMULA & DIAGRAM
Floral formula Floral diagram
MALE FEMALE

13. ECONOMIC IMPORTANCE
Emblicaofficinalis
Acommontreewithediblefruits
Thepickleorjamispreparedfromthefruits.
ThefruitisveryrichinvitaminC.
Ricinuscommunis
Theseedsarethesourceofcastor-oil,which
ismainlyusedasalubricantandasa
purgative.Itisalsousedfortransparent
soap,textilesoap

14. CONTINUE
Some of the plant species of this family which are ornamental are as follows,
Jatropha gossypifolia Acalyphahispida Euphorbia pulcherrima