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10 Cards in this Set

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(8 orders, 39, families, 12,000 species)
-most primitive subclass
-well developed perianth
-numerous stamens
-Apocarpous
-small embryo with large amounts of endosperm
-many with monocolpate pollen
many with specialized secretory cells
-some have wood like gymnosperm wood
Magnoliidae
(11 orders, 24 families, 3400 species)
-mostly woody (2 fam herbaceous)
-reduced flowers usually in catkins
-mostly wind pollinated
-advanced members have mature fruit containing a single ovule
Hammelidae
-Trinucleate pollen
-free central or basal placentation
-presence of Betalains instead of Anthocyanins in all but two families
Caryophyllidae
(13 orders, 78 families, 25,000 species)
-syncarpous
-binucleate pollen
-no free central or basal placentation
-centrifugal stamen development
-more than a third of species have parietal placentation
-another third of the species are sympetalous
Dilleniidae
(18 orders, 114 families, 58,000 species)
-most have well developed flowers generally the flowers are polypetalous
-few are amentiferous
-stamen development is centripetal
-pollen is mostly binucleate
-parietal placentation is rare
-usually only 1-2 ovules per locule
-nectariferous disc often present
Rosidae
(11 orders, 49 families, 60,000 species)
-sympetalous
-stamens usually as many or few than number of corolla lobes and alternate with lobes
-either 4 or 5 corolla lobes present
-usually two carpellate
Asteridae
(4 orders, 16 families, 500 species)
-mostly aquatic
-mostly apocarpous
-trinucleate pollen
-lacks endosperm
Alismatidae
(4 orders, 5 families, 5,600 species)
-growth habit: tiny to huge
-50% are arborescent
-flowers tend to borne on spathe and spadix inflorescence
Arecidae
(8 orders, 25 families, 19,000 species)
-mainly terrestrial herbs
-syncarpous
-trinucleate pollen
-most have endosperm
-primitive members have well-developed perianth for insect pollination
-advanced members reduced flowers for wind pollination
Commelinidae
(2 orders, 19 families, 28,000 species)
-syncarpous
-petaloid sepals and petals
-insect pollination
-terrestrial
Lilliadae