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Asterids: Ericaceae, lamiids part I
Lamiids
Asterids
Campanulids
Asterids
Core asterids
Tenuinucellate ovules Unitegmic ovules
Iridoid compounds
Textbook DVD KRR & DLN
Ryan Miller
Rhododendron macrophyllum Pacific Rhododendron (WA State Flower)
Ericaceae
Ericaceae
Vaccinium spp.
124 genera; 4,100 species Habit: Leaves:
Ericaceae
Herbaceous to woody
Simple Often evergreen Variously arranged
Often mycotrophic
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
usually radial
5 sepals, 5 petals Urn-shaped
Usually 10 terminal pores
1 compound pistil (3-5 carpels)
usually superior
drupe, berry, capsule
Ericaceae
http://www.apsnet.org/education/illustratedglossary/PhotosI-M/mycorrhiza.jpg
Ericaceae are often associated with mycorrhizal fungi, and are often myco-heterotrophic.
Ericaceae
Myco-heterotrophy = parasitism on mycorrhizal fungi.
Monotropa uniflora
Obligate parasite: must attach to a host to complete its life cycle. Facultative parasite: does not require a host to complete its life cycle.
Parasitic plants
Lamiids
Asterids
Campanulids
Asterids
Core asterids
Tenuinucellate ovules Unitegmic ovules
Iridoid compounds
Stamens epipetalous, corollas gamopetalous
Stamens alternate w. petals 2 fused carpels
Boraginaceae
Boraginaceae s.s. “Hydrophyllaceae”
134 genera; 2,650 species Habit: Leaves:
Boraginaceae
Ours herbaceous
Simple to compound Alternate
Hispid hairs
Inflorescence:
Scorpioid cyme Helicoid cyme
Scorpoid or helicoid cyme = coiled inflorescence, bearing flowers along the upper side and straightening as the flowers mature.
Boraginaceae
Boraginaceae
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
radial
5 sepals, 5 petals corona
5, included or exserted
1 compound pistil (2 carpels)
superior
4 nutlets, or capsule
Apocynaceae
Catharanthus roseus Vinca minor
355 genera; 3,700 species
355 genera; 3,700 species Habit: Leaves:
Apocynaceae
Ours herbaceous
Simple, entire Often opposite
Milky latex
Apocynaceae
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
radial
5 sepals, 5 petals
5 anthers often modified
1 compound pistil (2 carpels; 2 ovaries)
superior
follicle, berry, drupe
Textbook DVD KRR & DLN
Ryan Miller
stylar head
2 distinct ovaries
Apocynaceae
Textbook DVD KRR & DLN
Solanaceae
Solanum tuberosum Solanum melongena Solanum lycopersicum
Solanaceae
Atropa belladonna
Datura stramonium Nicotiana tabacum
alkaloids
102 genera; 2,510 species Habit: Leaves:
Solanaceae
Herbs, shrubs, or small trees
Simple to compound Alternate
Solanaceae
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
radial
5-merous corolla gamopetalous
5
1 compound pistil (2 carpels)
superior
Berry, or capsule
Solanum (~1,400 spp)
Solanaceae
corolla rotate anthers connivent, with terminal pores
