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Sun Nov 24 15:17:32 2024 in Vancouver
Biology 337: Divisions
(
Glossary
|
Divisions
)
Taken Spring 2005, with Dr. Plant. Information here is based primarily upon notes from class but some from external sources like the web.
Hepatophyta
Anthocerophyta
Bryophyta
Psilotophyta
Lycophyta
Sphenophyta
Pterophyta
Rhyniophyta
Zosterophyllophyta
Trimerophytophyta
Cycadophyta
Gingkophyta
Coniferophyta
age
.
division-name
Anthocerophyta
evolution
.
gametophyte
.
habit
.
leaves
No true leaves. Thalloids.
life-cycle
Homosporous
Produce bi or unisexual thalloid gametophytes. Partial dependance of sporophyte on gametophyte.
Antheridia and archegonia are sunken into surface of gametophyte thalloids.
Sporophyte is an upright stemlike structure. More advanced than hepatophyte:
larger
covered with a cuticle
has stomata
sporophyte has chloroplasts
a meristem between sporangium and foot allows for growth resulting in greater spore production
links
Handy quick rundown
members
Hornworts
rhizome
.
roots
none
sporangia
.
stems
unbranched
stomata
Yes.
traits
.
vascular-system
No conducting tissue.
Copyright 2005 by Aki Mimoto (amimoto+discontinu[at]gmail.com).
Some rights reserved.
akiaki
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