Carpels bear______. One or more carpels form the_____ = _______.
Petals and sepals are modified leaves. Often play a role in attracting pollinators.
microsporangia/filament and anther
megasporangia/ pistil/stigma, style, ovary
•have large and variable # of sepals and petals.
“one-housed”; male and female flowers occur on the same plant.
“two-housed”;male and female flowers on different plants. Inflorescence: grouping offlowers.
Angiosperms are _____sporous
•_______ fruits develop from one carpel (e.g. cherry).
•_______ fruits develop from several carpels (e.g. rasberry).
•_______ fruits form from a cluster of flowers (e.g. pineapple).
•_______ fruits develop from parts other than carpels (strawberry, apple).
Most Angiosperms are in two clades:
Monocots and Eudicots
one cotyledon (generally have leaves with parallel veins ); mostly wind pollinated. Monocots include grasses, cattails, lilies, orchids, and palms
two cotyledons (usually have leaves with netlike veins); mostly animal pollinated (e.g. most flowering plant species). Eudicots include most of the seed plants, including most herbs (nonwoody plants), vines, trees, and shrubs.
Other 4 Angiosperm clades include:
Amborella trichopoda: the most primitive living angiosperm (found only on New Caledonia, an island in the south pacific).
“Water lilies”: the most primitive of the widely distributed Angiosperm groups.