Post on 20-Jan-2016
transcript
Brassicaceae (Cruciferae)Mustard Family ca. 420 genera />4100 species
Lepidium (pepper grass, whitetop)Sisymbrium (London rocket)Brassica (cole crops)Lesquerella (bladderpod)Draba Descurainia (tansey mustard)Arabis (rock cress) Brassicaceae
Life FormPlants usually herbaceous, sometimes woody.
Flowers bisexual and mostly regular. Inflorescence typically a raceme.
Leaves alternate, simple or divided. Major leaves often in basal rosette.
Six stamens, usually with four long and two short filaments. Superior ovary on prolonged receptacle (gynophore); two carpels that form two-chambered capsule-like fruit with persistent central divider
Four distinct sepals and petals. Petals have claw at base and form cross when fully open.
Stems and Leaves
Perianth
Flowers and Inflorescence
Reproductive Structures
Fruit
Silique, silicle or capsule.
Brassicaceae
Life FormPlants usually herbaceous, sometimes woody.
Flowers bisexual and mostly regular. Inflorescence typically a raceme.
Leaves alternate, simple or divided. Major leaves often in basal rosette.
Six stamens, usually with four long and two short filaments. Superior ovary on prolonged receptacle (gynophore); two carpels that form two-chambered capsule-like fruit with persistent central divider
Four distinct sepals and petals. Petals have claw at base and form cross when fully open.
Stems and Leaves
Perianth
Flowers and Inflorescence
Reproductive Structures
Fruit
Silique, silicle or capsule.
Brassicaceae
Major leaves in basal rosette (Arabidopsis sp.)
Life FormPlants usually herbaceous, sometimes woody.
Flowers bisexual and mostly regular. Inflorescence typically a raceme.
Leaves alternate, simple or divided. Major leaves often in basal rosette.
Six stamens, usually with four long and two short filaments. Superior ovary on prolonged receptacle (gynophore); two carpels that form two-chambered capsule-like fruit with persistent central divider
Four distinct sepals and petals. Petals have claw at base and form cross when fully open.
Stems and Leaves
Perianth
Flowers and Inflorescence
Reproductive Structures
Fruit
Silique, silicle or capsule.
Brassicaceae
Brassicaceae
Eurosids II & Euasterids I 6
“claw” 4 + 2 stamens
CruciformGynophore
Brassicaceae
Lesquerella graclis
Brassicaceae
Life FormPlants usually herbaceous, sometimes woody.
Flowers bisexual and mostly regular. Inflorescence typically a raceme.
Leaves alternate, simple or divided. Major leaves often in basal rosette.
Six stamens, usually with four long and two short filaments. Superior ovary on prolonged receptacle (gynophore); two carpels that form two-chambered capsule-like fruit with persistent central divider
Four distinct sepals and petals. Petals have claw at base and form cross when fully open.
Stems and Leaves
Perianth
Flowers and Inflorescence
Reproductive Structures
Fruit
Silique, silicle or capsule.
Brassicaceae
Brassicaceae
Eurosids II & Euasterids I 10
“claw” 4 + 2 stamens
CruciformGynophore
Life FormPlants usually herbaceous, sometimes woody.
Flowers bisexual and mostly regular. Inflorescence typically a raceme.
Leaves alternate, simple or divided. Major leaves often in basal rosette.
Six stamens, usually with four long and two short filaments. Superior ovary on prolonged receptacle (gynophore); two carpels that form two-chambered capsule-like fruit with persistent central divider
Four distinct sepals and petals. Petals have claw at base and form cross when fully open.
Stems and Leaves
Perianth
Flowers and Inflorescence
Reproductive Structures
Fruit
Silique, silicle or capsule.
Brassicaceae
Brassicaceae
Eurosids II & Euasterids I
Raphanus sativus
Silique
Dry, dehiscent fruit of Brassicaceaewith two valves separating fromthe placentae and septum (replum)
Brassicaceae
Siliques
Silicles
Less than twice aslong as is wide
Brassicaceae
BrassicaceaeLesquerella montanaLesquerella montana
Brassicaceae
Sisymbrium irioSisymbrium irio