flowering plants

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Dovydas Mockevicius
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Flowering plants
(Angiospermae)
About Angiosperms
• The flowering plants or angiosperms (Angiospermae
or Magnoliophyta) are the most diverse group of land
plants. The flowering plants and the gymnosperms are
the only extant groups of seed plants. The flowering
plants are distinguished from other seed plants by a
series of apomorphies, or derived characteristics.
• The ancestors of flowering plants diverged from
gymnosperms around 245–202 million years ago, and
the first flowering plants known to exist are from 140
million years ago. They have become widespread
around 100 million years ago, but replaced conifers as
the dominant trees only around 60-70 million years ago
Angiospermae life cycle
Rose
• A rose is a perennial flower
shrub or vine of the genus
Rosa, within the family
Rosaceae, that contains over
100 species and comes in a
variety of colours. The species
form a group of erect shrubs,
and climbing or trailing plants,
with stems that are often
armed with sharp prickles.
Most are native to Asia, with
smaller numbers of species
native to Europe, North
America, and northwest Africa.
Natives, cultivars and hybrids
are all widely grown for their
beauty and fragrance.
Venus Fly Trap
(Dionaea muscipula)
• The Venus Flytrap, Dionaea
muscipula, is a carnivorous plant
that catches and digests animal
prey—mostly insects and
arachnids. Its trapping structure is
formed by the terminal portion of
each of the plant's leaves and is
triggered by tiny hairs on their
inner surfaces. When an insect or
spider crawling along the leaves
comes into contact with one or
more of the hairs twice in
succession, the trap closes. The
requirement of redundant
triggering in this mechanism
serves as a safeguard against a
waste of energy in trapping
objects with no nutritional value.
Lotus
(Nelumbo nucifera)
•
Nelumbo nucifera, known by a
number of names including Indian
lotus, sacred lotus, bean of
India, or simply lotus, is a plant in
the Nelumbonaceae family.
Botanically, Nelumbo nucifera
(Gaertn.) may also be referred to
by its former names, Nelumbium
speciosum (Wild.) or Nymphaea
nelumbo. This plant is an aquatic
perennial. Under favorable
circumstances its seeds may
remain viable for many years, with
the oldest recorded lotus
germination being from that of
seeds 1300 years old recovered
from a dry lakebed in northeastern
China.
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