Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chapter 21 (Euphyllophytes (megaphylls (telome theory (telomes= ultimate…
Chapter 21
Euphyllophytes
-
megaphylls
leaves that evolved from branch systems and is present in all seed plants, ferns, and equisetophytes
-
-
-
-
equisetophytes (horsetail, scouring rushes) 
-
-
monopodial growth = main trunk, lateral branches, true leaves, and true roots
-
Ferns
-
all are perennial and herbaceous, none woody, size of small trees
-
-
-
-
early vascular plants
rhyniophytes
-
epidermis with a cuticle, cortex of parenchyma, simple bundle of xylem composed of tracheids with annular secondary walls
swollen branches, large sporogenous tissue, no separate microspores or megaspores
-
zosterophyllophytes
small herbs without secondary growth, similar to rhyniophytes
3 differences: sporangia were lateral, sporangia opened transversely along top edge, and xylem was an exarch protostele
-
