Angiosperm Lab


Angiosperms are part of the group Magnoliophyta, which includes crops and most horticultural plants. Angiosperms differ basically from gynmosperms because they have an ovary covering their seeds, whereas gymnosperms do not. Fruits or flowers cover their seeds. Our economy depends on angiosperms more than any other plant group, and 80% of the known living plants on Earth are angiosperms. Fossils show that the earliest angiosperms existed during the Early Cretaceous Period (144 to 97.5 million years ago). Angiosperms have evolved over the years, developing specialized vascular tissues and extensive root systems. They evolved this way to survive living in a maily terrestrial environment. Angiosperms are a huge part of the plant world and our economy, and we should work to protect the bidiversity that exists within them.


All these angiosperms are native to Costa Rica.

Taxonomic Identifications
Picture Latin Name

(Family, Genus Species)

Common Name Pollinated by: Family Characteristics Traditional Use
Clusiaceae,

Clusia rosea

Autograph Tree insects - most have opposite leaves
- thick, milky, yellow to orange sap
an ornamental plant
Rosaceae,

Impatiens wallerana

Impatiens insects - seeds that pop open in your hand

- small, inch-long flowers

cultivated as herb
Gunneraceae,

Gunnera insignis

Poor Man's Umbrella insects - large leaves

- rough textured leaves

herbs and protection from the rain
Heliconiaceae,

Heliconia rostrata

Plantanillo hummingbirds - fruits are blue/black

- large red bracts look like lobster claws

a yard ornamental
Onagraceae,

Fuchsia jimenezii

Fuchsia insects or hummingbirds
Lauraceae,

Ocotea tonduzii

Aguacatillo (Wild Avocado) insects
Rubiaceae,

Psychotria elata

Hot Lips hummingbirds
Piperaceae, Piper umbellata Candela insects
Begoniaceae,

Begonia estrellensis

Begonia insects
Araceae,

Xanthosoma sp.

Elephant Ear insects (scarab beetles)







Araceae,

Philodendron sp.

Philodendron insects




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