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Order of Saxifragales

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Main Diagram Plant Order List


Species: 2,470

Families in Saxifragales
1) Crassulaceae
2) Saxifragaceae
3) Grossulariaceae
4) Haloragaceae
5) Hamamelidaceae
6) Peridiscaceae
7) Altingiaceae
8) Iteaceae
9) Paeoniaceae
10) Cercidiphyllaceae
11) Daphniphyllaceae
12) Aphanopetalaceae
13) Tetracarpaeaceae
14) Penthoraceae
15) Pterostemonaceae


Saxifragales
Saxifragales is an order of flowering plants.
Their closest relatives are a large eudicot group known as the rosids by the definition of rosids given in the APG II classification system.
Some authors define the rosids more widely, including Saxifragales as their most basal group.
Saxifragales is one of the eight groups that compose the core eudicots. The others are Gunnerales, Dilleniaceae, rosids, Santalales, Berberidopsidales, Caryophyllales, and asterids.

Saxifragales has an extensive fossil record.

The extant members are apparently remnants of a formerly diverse and widespread order.
Saxifragales, as it is now understood, is based upon the results of molecular phylogenetic studies of DNA sequences. It is not part of any of the classification systems based on plant morphology. The group is much in need of comparative anatomical study, especially in light of the recent expansion of the family Peridiscaceae to include Medusandra, a genus that before 2009, had usually not been placed in Saxifragales.
The order is divided into suprafamilial groups as shown on the phylogenetic tree below. These groups are informal and are not understood to have any particular taxonomic rank.
Crassulaceae (1400)

Saxifragaceae (500)

Grossulariaceae (150 - 200)

Haloragaceae (150)

Hamamelidaceae (100)

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Pterostemonaceae
Saxifragales
Saxifragales
Rock Breaker Order
Core Eudicots
Core Eudicots
Main, Real, Two First-Leaves (Dicots)
Eudicots
Eudicots
Real, Two First-Leaves (Dicots)
Mesangiospermae
Mesangiospermae
Half Capsule Seed Division
Magnoliophyta
Magnoliophyta
Magnolia Division
Spermatophytes
Spermatophytes
Seed Plants
Euphyllophytina
Real Land Plants
Polysporangiates
Multiple Spore Sub-Kingdom
Stomatophytes
Stomatophytes
Air Pores Sub-Kingdom
Embryophytes
Embryophytes
Multicellular Land Plants
Streptobionta
Streptobionta
Multicellular Plants
Plantae
Plantae
Plants
Eukaryota
Eukaryota
Cells with a Nucleus
1
Crassulaceae Family

2
Saxifragaceae Family

3
Grossulariaceae Family

4
Haloragaceae Family

5
Hamamelidaceae Family

6
Peridiscaceae Family

7
Altingiaceae Family

8
Iteaceae Family

9
Paeoniaceae Family

10
Cercidiphyllaceae Family

11
Daphniphyllaceae Family

12
Aphanopetalaceae Family

13
Tetracarpaeaceae Family

14
Penthoraceae Family

15
Pterostemonaceae Family


http://en.wikipedia.org/wiki/Saxifragales


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Comment: Saxifragales : Order of Plants

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