Family- Rosaceae.pptx

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1. Family- Rosaceae Systematic Position and Vegetative Characters

2. Rosaceae Rose Straberry

3. Systematic Position (Bentham and hooker) Division- Angiospermae Class- Dicotyledons Sub-class- Polyptalae (petals free) Series- Calyciflorae (calyx gamopetalous ) Order- Rosales Family- Rosaceae

4. Distribution World wide Genera- 115, Species- 3200 Common in Nepal

5. Vegetative Characters Habit and habitat: may be herb, shrub (Rose) or trees Root: Tap root or adventitious arising from the underground organs or cuttings Stem: herbaceous or woody, erect, cylindrical, solid, branching, sometimes divided into nodes and internodes. Leaf: Simple or compound, alternate, stipulate, petiolate , unicostate reticulate venation

6. Rose

7. Some species of Rosaceae Rosa rubiginosa (Rose) Fragaria ananassa (Strawberry) Prunus persica (Peach) Prunus dulcis (Almond)

8. Floral Characters Inflorescence: Variable. Solitary, receme , axillary or cyme, spike like receme Flowers: pedicillate , bacteate , bisexual or unisexual, actinomorphic, hypozygous , perigynous , epigynous Calyx: sepals-5, gamosepalous , imbricate, valvate astivation Corolla: petals- 5, polypetalous,imbricate astivation , petals are various colours.

9. Androecium- Many Stamens, anther are small and bicell . Gynoecium- Consists of many carpels, mostly apocarpus (free), superior but sometimes syncarpous and inferior. Fruit- variables (berry, pome) Floral formula –

10. Floral diagram

11. Economic importance of Rosaceae It is one of the most economically important families which comprised the fruit, nut, ornamental, aroma, herb, and woody plants. Edible crops domesticated for human consumption in Rosaceae include apple, strawberry, pear, peach, plum, almond , sour cherry, and sweet cherry.

12. Reference www.tufoe.edu.np Pandey , B.P.(2011). A Textbook of Botany Angiosperm, S. Chand Publishing. New Delhi.

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