Study of Angiosperms: Amaranthaceae & Rutaceae Families

1. S.Y.BSc SEMESTER III BOTANY PAPER I UNIT: III FAMILY: AMARANTHACEAE By Mrs. S. S.HAJIRNIS Department of Botany SATISH PRADHAN DNYANASADHANA COLLEGE,THANE(W)

2. ANGIOSPERMSFamily : Amarantaceae T.Y.BSc

3. Family : Amarantaceae • Classification : • Division: Spermatophyta seed bearing plants • Sub division : Angiospermae seeds present inside seed coat • Class : Dicotyledoneae Two cotyledons present, tetra or pentamerrous symmetry.,reticulate venation, tap root system. • Sub class: Apetalae Flowers unisexual ,.Perianth either petaloid or sepaloid or absent. • Series : Curvembryeae Flowers regular, . Ovary superior, Embryo curved • Order : Chenopodiales Mostly herbs, Ovary superior,.Monocarpellary with one ovule • Family : Amarantaceae

5. Family : Amarantaceae • Habit : mostly or rarely shrubs. • Leaves : Alternate or opposite ,simple , entire , exstipulate, hairy. • Inflorescence : spike, head or raceme , cymose panicle. • Flowers :Regular ,bisexual or unisexual , with scarious thin , dry and membranous, non green and persistent bracts and a pair of membranous persistent bracteoles. • Perianth : Sepaloid, membranous , dry, and often coloured, or white, consisting of 3-5 scarious or hyaline ( translucent) persistent leaves, imbricate.

6. Family : Amarantaceae • Androecium : stamens 5, opposite the perianth members, filaments free or united at the base into a short tube, often with staminodes between petaloid perianth. • Gynaecium : Carpels 2-3, syncarpous, 1– celled, superior. Style united, short or long, stigma capitate or 2-3-fid,ovules solitary or rarely more on a basal funicle. • Fruit : A nut, utricle or ptyxis (dehiscing transversely ) as in Celosia

8. Family : Rutaceae • Classification : • Division: Spermatophyta seed bearing plants • Sub division: Angiospermae seeds present inside seed coat • Class :Dicotyledoneae Two cotyledons present, tetra or pentamerrous symmetry.,reticulate venation, tap root system. • Sub class: Polypetalae Petals free, Stamens not epipetalous • Series:Disciflorae Thalamus disc shaped, disc present between corolla and androecium or androecium and Gynaecium • Order: Geraniales Stamens double the no. of petals • Family : Rutaceae

9. Family : Rutaceae • Plant : Shrubs or trees , very rarely herbs , often provided with thorns. • Leaves : Alternate or opposite ,simple or compound , generally smooth with pellucid or gland-dotted (containing essential oil) and exstipulate. • Inflorescence :Axillary or terminal cymes or panicles or solitary. • Flowers :Regular /rarely irregular ,bisexual ,rarely unisexual , with an annular or cushion-like disk generally between or above the stamens. • Sepals : 4-5,imbricate or valvate ,free or connate, glandular • Petals : 4-5,imbricate rarely valvate ,free .

10. Family : Rutaceae • Androecium : stamens are as many as petals or double the number of petals i.e. obdiplostamenous condition, rarely, many as in Citrus., free or polyadelphous, anthers 2-celled, introse, cushion like disk present between the stamens. • Gynoecium : Ovary4-5 carpels, syncarpous, 4-5 celled, superior, with often 2 ovules superposed, style short, free or connate ,stigma entire or lobed. • Fruit : A berry or rarely a capsule or a drupe.

11. Murraya exotica

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