Lecture 19 Dicots v Monocots

Question 1

Dicot Characters

Answer 1

two cotyledons
primary/secondary root system
eustele or ectophloic siphonostele
\+/-vascular cambium
divergent/ reticulate leaf venation
4 or 5 floral base #
mono or triapertureate pollen

Question 2

Monocot Characters

Answer 2

one cotyledon
adventitious roots
atactostele
no vascular cambium
parallel venation
floral base # usually 3
monoaperturate pollen

Question 3

Relationship of dicots to monocots

Answer 3

dicots are paraphyletic relative to monocots

monocots are monophyletic

Question 4

What are eudicots?

Answer 4

have pollen with 3 apertures through which a pollen tube can emerge during germination.
This is evolutionarily advanced.
Most dicots are eudicots
largest group of angiosperms