APG I and II scientific classification?
What's the diff between APG I and II?
What system is wiki using?
According to them, Angiospermae goes into "Plantae Kingdom"? What about Spermatophyta and Cormophyta in between? Or are they available nevertheless as APG only refers to angiosperms?
Could you please give me an example on a specific genus, like Helianthus(whole classification, from family to kingdom)?
inflorescence best answer: Answer by Harshal
Kindly click on the links below to learn about APG system of classification of Angiosperms .
http://en.wikipedia.org/wiki/Angiosperm_Phylogeny_Group
http://en.wikipedia.org/wiki/APG_system
http://en.wikipedia.org/wiki/APG_II_system
Cormophyta is the term in older classifications .It is not used now .
http://www.biology-online.org/dictionary/Cormophyta
http://www.thebiotechdictionary.com/term/cormophyta
Spermatophyta is a larger group of Angiosperms and Gymnosperms put together .
APG I & II do not deal with Gymnosperms . Only Angiosperms .
click for what wiki says for Spermatophyta =
http://en.wikipedia.org/wiki/Spermatophyta
Classification of Helianthus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots ( True Dicots )
(unranked): Asterids ( Inferior ovary )
Order: Asterales ( Capitulum inflowrescence )
Family: Asteraceae ( Only one family in Asterales )
Subfamily: Helianthoideae
Tribe: Heliantheae
Genus: Helianthus
L.
- EDIT-
In order to make you understand the different groups that you have mentioned in your question . I make use of Sir Bentham & Sir Hooker's classification method (1800 to 1914 )that was in use throughout the British empire not in too distant past.
I ) Classification of Helianthus annus ( The common or annual sunflower plant )
Kingdom – Plantae ( All the plants in the world )
Division – Spermatophyta ( The seed producing plants only )
****( This Division includes sub division Angiospermae & sub division Gymnospermae as both of them are SEED BEARING plants ).
Sub-Division- Angiospermae – ( These are all seed bearing plants no doubt but they are also fruit bearing plants as the OVULES are enclosed inside an OVARY;and after fertilization ovules are turned in to seeds and the ovary becomes a fruit . THIS FEATURE IS TOTALLY LACKING IN GYMNOSPERMS )
Class- Dicotyledonae – Two cotyledons in the seed . Reticulate venation on the leaves ( Mostly ) and pentamerous or tetramerous symmetry in the floral parts (i.e.floral parts are 5 or 4 or in multiple thereof .
Sub-Class – Gamopetalae – ( Petals are always fused . that means corolla is Gamopetalous )
Series – Inferae OR Epigynae – ( Ovary is always inferior )
Order Or Cohort Asterales – ( These are mostly herbs . Flowers are in Capitulum inflorescence
Family – Asteraceae ( Only one family in that order )
Genus – Helianthus ( The common , Sun orienting , sun flower )
Species – Helanthus annus – The annual sunflower.
inflorescence
Francoa sonchifolia #1
Best viewed @ large size
Francoaceae (formerly Saxifragaceae) - Endemic to Chile
Maiden's Wreath, Bridal Wreath
Shown: Inflorescence displaying flower buds and opened flowers
"Plants may grow up to one metre high and produce basal clumps of round, deeply lobed, dark green, fuzzy leaves with winged leafstalks. Compact racemes of small, cup-shaped flowers, which are pink with red markings, appear in summer and early fall." (Wikipedia)
Additional views:
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farm3.static.flickr.com/2541/3891337964_8f77cfda29_b.jpg
farm4.static.flickr.com/3476/3890885263_fb2a3d4fae_b.jpg
farm3.static.flickr.com/2618/3890925529_0931282624_b.jpg
Photographed in San Francisco Botanical Garden - San Francisco, California
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APG I and II scientific classification? and Francoa sonchifolia #1
