Plant Families 3 Flashcards
(16 cards)
Chenopodiaceae
Gooseberry family.
Farinose-surface with small granular vesicles filled with water
Some economic important grow edible fruits - beets and spinach
Some cultivated ornamental species
Some agricultural weeds
100-113 genera 1500 species
Caryophyllaceae
Dichasial - compound cyme with flower forming parts.
66-75 genera with 2000 species
Economic importance with many being colorful ornamentals - carnation
Some tend to be weedy in nature.
Cactaceae
50-150 genera 200 species
Mostly new world species
Some found in temperate regions mostly in tropical areas
Stem succulent and have areoles
Polygonaceae
Buckwheat family
30-49 genera 1000 species
Mostly north temperate species some in tropics
Peculiar stipule- ocrea-sheath formed by fusion of two stipules
Some produce fruits- rhubarb and buckwheat
Ericaceae
Heather or blue berry family Corolla often ulcerolate- shaped like an urn or pitcher Fruit capsule berry or drupe 116-125 genera 3500 species Occurs from polar regions to tropics Contains many prized ornamentals Fruits are blueberrys or cranberries Corollas are sympetalous- fused
Polemoniaceae
Phlox family
18-20 genera - 300 species
Restricted to temperate areas mostly in California
Flowers all 5numerous and radially symmetric
Calyx have sympetalous green center
Primulaceae
Primrose family
23-30 genera 1000 species
Fruit capsule - sometimes circumsessile
Flower formula Ca5 Co 5 a5 G5
Rubiaceae
Madder family 450-606 6500 species Tropical members are trees or shrubs Tropical are herbaceous Economically important - coffee and quinine
Asclepiadaceae
Milkweed family
315 genera with 2000 species
Greatest diversity occur in South America
Avoided by everything besides butterfly caterpillars
Milky sap is bitter tasting containing alkaloids poisonous
Boraginaceae
Borage family 110-131 genera 2400 species
Common inflorescence is scorpiod cyme
Very unique gynocieum -‘deeply four lobed ovary with style arising from base of ovary
Fruit breaks apart to 4 one seed nutlets
Laminaceae
Mint family
Fruit - nutlets 4 (1-3)
200-212 3200 species
Inflorescence often verticillate - arranged in whorls
Economically important - supply aromatic oils -
Many herbs- thyme and basil
Schrophulariaceae
Figwort family 190-275 genera 4000 species Widespread across the world Fruit capsule - rarely a berry Some capable of joining other plants root system Important drug - digitalis
Solanaceae
Potato or nightshade family
85-96 genera 2800 species
Important for potatoes and Tabacco
Campanulaceae
Bellflower family
70-84 genera with 1800-2000 species
Contains two sub families
Fruit is generally a capsule that dehiscence in various ways
Caprifoliaceae
Honeysuckle family
13-15 genera - 400 species
Greatest diversity in Asia and eastern America
Make many wines and jellies
Apiaceae
Carrot family
428 genera with 3000 species
Typically a pair of dome shaped conical stylopodia - disk like expansion many crops are grown