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Angiosperm families
angiosperm families
14
Biology
Undergraduate 3
05/20/2010

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Cards

Term
Family: Brassicaceae
Definition

- 4 sepals, 4 petals, and 6 stamens (4 long +2 short)

- Has a silique/silicile (sometimes with a beak)

Term
Family: Ranunculaceae
Definition

- Has many stamens and can have spurs

- Apocarpous (2+ simple, distinct carpels)

- Fruits either follicles or achenes

- Usually has 5 sepals (petaloid)

Term
Name the 13 angiosperm families we need to know:

Hint: BARB CRASH & FLIP
Definition

1) Brassicaceae

2) Asteraceae

3) Ranunculaceae

4) Boranginaceae

5) Caryophyllaceae

6) Rosaceae

7) Apiaceae

8) Saxifragaceae

9) Hydrophyllaceae

10) Fabaceae

11) Liliaceae

12) Iridaceae

13) Portulacaceae

Term
Family: Rosaceae
Definition

- 5 sepals fused to a hypanthium (floral cup)

- alternative leaves with stipules 

- many stamens and flowers are perfect & radial

Term
Family: Caryophyllaceae
Definition

- opposite leaves with swollen nodes and succulent stems

- 5 petals (sometimes lobed), 5 sepals, and 3-10 stamens

- stigma branches

Term
Family: Portulacaceae
Definition

- 2 sepals 

- 2-3 stigma branches

- stamens 4-6, opposite the petals

Term
Family: Liliaceae
Definition

- 3 sepals, 3 petals, and 6 stamens

- tepals may have spots or lines

- flowers radial

- superior ovary

 

Term
Family: Iridaceae
Definition

- 3 sepals, 3 petals, and 3 stamens

- tepals not spotted

- flowers with a bilateral component

- inferior ovary

Term
Family: Fabaceae
Definition

- Bilateral flowers with a banner, wings, and keel (2 fused petals)

- Fruits are legumes

- 10 stamens (10 fused = monoadelphous; 9 fused + 1 = diadelphous).

Term
Family: Saxifragaceae
Definition

- leaves basal or alternate w/o stipules

- radial flower with 5-10 stamens

- 5 sepals fused to hypanthium

 

Term
Family: Hydrophyllaceae
Definition

- 5 exerted epipetalous stamens 

- very hairy (glandular and stinging hairs)

- Terminal style with stigma branches

- May have scorpoid cyme  w/ capsule fruit

Term
Family: Boranginaceae
Definition

- Scorpoid cyme w/ 4-nutlet fruits (2 carpels)

- Has 1 gynobasic style (fused to receptacle and nutlets)

- Has 5 epipetalous stamens (stamens adnate to corolla)

- Has 5 fused petals usually with appendages

-

Term
Family: Apiaceae
Definition

- umbel inflorescence 

- sepals reduced

- sheathing petioles 

- Lots of mini-flowers 

Term

Family: Asteraceae

(composite flowers)

Definition

- Inflorescences indeterminate

- Flowers aggregated into HEADS on a receptacle

- Surrounded by involucre of bracts (= phyllaries)

- Two types of flowers: ray and disc flowers

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