Fruits And Seeds Flashcards
(35 cards)
Fruit def
Ripened ovary of single flower or whole inflorescence due to fertilization
Fruit function
Protects and nourishes seed
What is the fruit made of
Pericarp
Seed
Pericarp def and structure
Covering of ovary
Exocarp/epicarp
Mesocarp
Endocarp
Seed def
Ovule development
Umbelliferous fruits def
Schizocarpic fruits (cremocarps)
Schizocarpic def
are the dry fruits which upon maturing with divide into single-seeded indehiscent parts known as mericarps.
Structure of umbelliferous fruits
Has cremocarps that split longitudinally into two one seeded mericarps attached to carphphore
Apex is crowned with conical structure named stylopod
What is the mericarp in umbelliferous fruits characterized by
Flat surface
Rounded surface
Surface of each maricaro has five 1ry ridges and six 2ry ridges
Where are the 1ry ridges in the mericarp
They’re over vascular bundles
Where are the 2ry ridges in the mericarp
Over the vittae
What is under each 1ry ridge
Biocollateral vascular bundle
What is under each 2ry ridge
Schizogenous duct (vitta)
Seed of the umbelliferous mericarp
Endospermic (albuminous)
Derived from anatropous ovule
Endosperm is oily
Embryo is small and apical
Examples of umbelliferous fruits
Fennel
Fennel origin and family
Dried ripe fruits of the foeniculum vulgare
Umbelliferae (apiaceae)
AC of fennel
Volatile oils:
Anethole
Fenchone
Fixed oil
Vitamins a and c
Uses of fennels
Flavour
Carminative
Mild expectorant
Lactogouge
What is fennel contraindicated for and why
Pregnancy because it’s uterine stimulant
Cremocarp of fennel
Mericarp bifid stylopod
Mericarp of fennel
Straight or slightly curved showing five prominent 1RY ridges
Taste of fennel
Aromatic and sweet
Transverse section of fennel fruit cremocarp contains what
• Epicarp: straight-walled cells, smooth cuticle, anomocytic stomata.
• Mesocarp: reticulated parenchyma, 6 vittae, 5 vascular bundles.
•Endocarp: typical parquetry arrangement.
Seed def
Matured fertilized ovule