BULAKLAK Flashcards
These are the group of leaves modified or adapted for reproduction in the angiosperms
FLOWER
Floral morphology
SEPALS, PETALS, STAMENS, PISTIL, RECEPTACLE
- It enclose the outer flower parts in the bud, outermost whorl of the flower
- Generally green in color
SEPALS
All the sepals taken collectively constitute the _______
CALYX
Types of sepals
- POLYSEPALOUS (all sepals are free from each other) (e.g. mustard, radish)
- GAMOSEPALOUS (sepals are fused with each other) (e.g. cotton, datura, brinjal)
Duration of sepals
- CADUCOUS (sepals, fall just at the time of opening of flower bud) (e.g. poppy)
- DECIDOUS (sepals fall after pollination) (e.g. mustard)
- PERSISTENT (if sepals do not fall and remain attached to the fruit) (e.g. tomato, capsicum, brinjal, cotton)
Usually the conspicuous, colored,
attractive part of a flower
PETALS
When petals are taken together, it constitute the ______
COROLLA
Types of petals
SYMMETRICAL, ASYMMETRICAL, POLYPETALOUS, GAMOPETALOUS
It is the male part of the flower lying inner to the corolla
STAMENS
Anther, filament, and connective is called ______
ANDROECIUM
It is the female part of the flower which comprises the central whorl or modified floral leaves
PISTIL
Pistil is collectively called the ______
GYNOECIUM
Pistil is consist of
- OVARY (enlarged basal part)
- STYLE (connects the ovary to the stigma)
- STIGMA (usually at the tip of the style and is receptive surface for pollen grains)
It is the enlarged end of the flower stem or stalk
RECEPTACLE
It is the part where the sepals, petals, stamens, and pistils are attached
RECEPTACLE
Variations in floral structure
- BASED ON FLOWER PARTS PRESENT
- BASED ON SEXUALITY OF THE FLOWER
- BASED IN SIZE AND SHAPE OF FLORAL PARTS
- BASED ON FLORAL SYMMETRY
- BASED ON THE POSITION OF THE OVARY
- BASED ON UNION OF THE FLORAL PARTS
- BASED ON NUMBER OF FLOWER PARTS
Kinds of connation flowers
- SYNSEPALOUS (fused sepals)
- SYMPETALOUS (fused petals)
- SYNANDROUS (fused stamens)
- SYNCARPOUS (fused pistils)
It is the arrangement of the flowers on a plant
INFLORESCENCE
Types of inflorescence
RACEME, PANICLE, SPIKE, CATKIN, UMBEL, SPADIX, CORYMB, CYME, FASCICLE, COMPOSITE
Events involved in the reproductive cycle of angiosperms
DEVELOPMENT OF GAMETOPHYTES, POLLINATION, GERMINATION OF THE POLLEN GRAINS, FERTILIZATION
