Angiosperms 2

Question 1

Core Angiosperms

Answer 1

Core angiosperms represent the majority of land plants.

Question 2

Phylogenetic evidence supports a division in 3 subclades:

Answer 2

• Mangnoliids
  -Monocots- distinguished by a single cotyledon
  -Eudicots- distinguished by three-aapertured pollen

Question 3

The third major lineage of the core angiosperms is the

Answer 3

eudicots

Question 4

Their main distinguishing feature is the three-apertured pollen called

Answer 4

tricolpate

Question 5

Eudicots represent what percent of angiosperms?

Answer 5

~75%

Question 6

Basal Eudicot lineages include the

Answer 6

Ranunculales (contains buttercups and poppies) and the Proteales (contains sycamores)

Question 7

The 3 core lineages are

Answer 7

caryophiliids (e.g. cactii), the rosids (e.g. apple), and the asterids (e.g. sunflower)

Question 8

Ranunculales consists of ~3,500 species, mainly herbs in temperate latitudes

Answer 8

-Lobed leaves
-Numerous flower parts
-Superior ovary
-Includes wide

Question 9

Proteales consists of about 1,750 divided in 4 families. Due to their early divergence, they are quite diverse, but some common traits include:

Answer 9

-Seeds with little to no endosperm
-Atropic ovules
-Typically trees or shrubs with reduced, wind-pollinated flowers

Question 10

Caryophyllids

Answer 10

-sometimes grouped with the asterids as “superastrids” - this is a diverse clade consisting of ~11,600 species, including cacti, amaranths, iceplants, beets, and many carnivorous plants

Question 11

Caryophyllids pt.2

Answer 11

-It ranges from herbaceous annuals to lianas, shrubs and trees.
-Typically characterized by unusual pigmentation- containing betalain compounds (reddish/yellow pigments)
-Dominates alkaline and arid regions