-
diversity during the
Early Cretaceous. The
primary difference between gnetophytes and
other gymnosperms is the
presence of
vessel elements, a
system of...
- ****tophytes (seed plants)
Cycadophyta Cycads 160
Ginkgophyta Ginkgo 1
Pinophyta Conifers 630
Gnetophyta Gnetophytes 70 Angio****e
Flowering plants 258650...
- conifers,
which are cone-bearing
trees and shrubs, and Gnetophyta, the
gnetophytes,
various woody plants in the
relict genera Ephedra, Gnetum, and Welwitschia...
- Italy, Slovenia,
Austria Ephedra is part of a
group of
plants called ‘
gnetophytes’.
These plants have
hardly changed in the past 100
million years, and...
- of seed-producing
plants that
include conifers, cycads, Ginkgo, and
gnetophytes,
forming the
clade Gymno****e. The term
gymnosperm comes from the composite...
- conifers,
which have
simple pollen strobili and
compound seed strobili,
gnetophytes have both
compound pollen and seed strobili. The seed
strobili of Ephedra...
-
authors have
linked bennettitaleans to
angiosperms (flowering plants) and
gnetophytes (a rare and
unusual group of
modern gymnosperms),
forming a
broader group...
-
called foliage leaves. Gymnosperms, such as conifers, cycads, Ginkgo, and
gnetophytes are seed-producing
plants with open seeds.
Angiosperms are seed-producing...
- this
event has been do****ented in both
Ephedra and Gnetum, a
subset of
gnetophytes. In
Ephedra nevadensis, a
single binucleate sperm cell is
deposited into...
- The sporangia,
despite being recurved are
interpreted as terminal.
Gnetophytes produce both
compound pollen and seed strobili. C.Michael Hogan. 2010...
