Fruits are dispersed by different biotic or abiotic agents, try to think while you work on this lab which is the dispersal agent of these fruits.
Scientific names are detailed underneath the image or group of images.
This is a longitudinal and transverse cut of a grape tomato, you had to draw them and key out the type of fruit
Solanaceae: Solanum lycopersicum
These muscadine grapes have been cut longitudinally and transversely, in the lab you have to draw them and key out , what type of placentation do they have?
Vitaceae: Vitis rotundifolia
These apple slices show you details on the placentation
Rosaceae: Malus pumila
The following sample shows young and ripe fruits and several cuts for you to see the placentation. Think about all the structures that you are observing in these pictures.
What do you think disperses these fruits?
Oleaceae: Fraxinus americana
Key out these fruits, understand all the structures
What fruit type?
Meliaceae: Melia azedarach
Key out this fruit
Cornaceae: Nyssa ogeche
Sapindaceae: Acer saccharum sbsp. floridanum
This strawberry is an example of an aggregate of achenes, this is also an accesory fruit, why?
Rosaceae: Fragaria sp.
This raspberry is an example of an aggregate of druplets
How many flowers is this derived from? Is this an aggregate or a multiple fruit?
Bromeliaceae: Ananas comosus
The follicles open along one side to release seeds (note:seeds have a fleshy seed coat). Is this a multiple or aggregate fruit? Hint: Comes from one flower
Magnoliaceae: Magnolia grandiflora
Aggregate of follicles
This is an example of a schizocarp
Peanuts are examples of indehiscent pods
Fabaceae: Arachis hypogaea
This baobab fruits is also an example of an indehiscent pod, it contains many seeds, it is dry and is indehiscent
What is the fruit type of cherries?
Rosaceae: Prunus sp.
PEPO: a type of berry, how many carpels? Why? Placentation?
Cucurbitaceae: Cucumis sativus
This is an example of an achene, like the ones found in sunflowers
Asteraceae: Helianthus annuus
Is this an example of a caryopsis or grain? How does it differ from an achene?
Poaceae: Zea mays
This is an example of a berry. Like Citrus (lemon) but the rind is hard instead of leathery
Rutaceae: Aegle marmelos
The following sweetgum fruit is an example of multiple capsules
Altingiaceae: Liquidambar formosana
An example of a septicidal capsule
This is an example of a poricidal capsule
Papaveraceae: Papaver orientale
This is an example of a samara
This is an example of a legume
Fabaceae: Delonix regia