Monday, November 16, 2009

Biology question?

is a camellia (flower) a monocot or dicot? how do I know?

Biology question?
easiest way is to check the viens in the leaves parralel = monocot.... branching=dicot





monocots flower parts are in multiples of three





dicots flower parts in multiples of four or five
Reply:Dicotyledons, or "dicots", is a name for a group of flowering plants whose seed typically has two embryonic leaves or cotyledons. There are around 199,350 species within this group Flowering plants that are not dicotyledons are monocotyledons, typically having one embryonic leaf.





The dicotyledons no longer are regarded as a "good" group, and the names "dicotyledons" and "dicots" are no longer to be used at least in a taxonomic sense. The vast majority of the former dicots, however, form a monophyletic group called the eudicots or tricolpates. These may be distinguished from all other flowering plants by the structure of their pollen. Other dicotyledons and monocotyledons have monosulcate pollen, or forms derived from it, whereas eudicots have tricolpate pollen, or derived forms, the pollen having three or more pores set in furrows called colpi.





Traditionally the dicots have been called the Dicotyledones (or Dicotyledoneae), at any rank. If treated as a class, as in the Cronquist system, they may be called the Magnoliopsida after the type genus Magnolia. In some schemes, the eudicots are treated as a separate class, the Rosopsida (type genus Rosa), or as several separate classes. The remaining dicots (palaeodicots) may be kept in a single paraphyletic class, called Magnoliopsida, or further divided.








[edit] Classification





The following lists are of the orders formerly placed in the dicots, giving their new placement in the APG-system and that under the older Cronquist system, which is still in wide use.


APG II Cronquist system





Amborellaceae





Chloranthaceae





Nymphaeaceae [+ Cabombaceae]





Austrobaileyales





Ceratophyllales





magnoliids





* Canellales


* Laurales


* Magnoliales


* Piperales





eudicots





* Buxaceae [+ Didymelaceae]


* Sabiaceae


* Trochodendraceae [+ Tetracentraceae]


* Proteales


* Ranunculales





core eudicots





o Aextoxicaceae


o Berberidopsidaceae


o Dilleniaceae


o Gunnerales


o Caryophyllales


o Santalales


o Saxifragales





rosids





+ Aphloiaceae


+ Geissolomataceae


+ Ixerbaceae


+ Picramniaceae


+ Strasburgeriaceae


+ Vitaceae


+ Crossosomatales


+ Geraniales


+ Myrtales





eurosids I





# Zygophyllaceae [+ Krameriaceae]


# Huaceae


# Celastrales


# Cucurbitales


# Fabales


# Fagales


# Malpighiales


# Oxalidales


# Rosales





eurosids II





# Tapisciaceae


# Brassicales


# Malvales


# Sapindales





asterids





+ Cornales


+ Ericales





euasterids I





# Boraginaceae


# Icacinaceae


# Oncothecaceae


# Vahliaceae


# Garryales


# Gentianales


# Lamiales


# Solanales





euasterids II





# Bruniaceae


# Columelliaceae [+ Desfontainiaceae]


# Eremosynaceae


# Escalloniaceae


# Paracryphiaceae


# Polyosmaceae


# Sphenostemonaceae


# Tribelaceae


# Apiales


# Aquifoliales


# Asterales


# Dipsacales
Reply:It is a dicot.It's petal formula is a multiple of 4 or 5.





Monocots have petal formulas based on 3 or 6. Plus monocots have parallel veins and only one seed leaf. Dicots have non-parallel veins and 2 seed leaves.





Hope this helps!
Reply:http://www.thegrowspot.com/know/f7/all-a...
Reply:dicot





http://www.csdl.tamu.edu/FLORA/201Manhar...
Reply:i have no clue also, but try this site. hope i helped!


http://www.hear.org/starr/hiplants/image...
Reply:Monocots have leaves in groups of 2 or 3, dicots in 4 or 5. Also monocots have a fibrous root system while dicots have a taproot.
Reply:dicot


No comments:

Post a Comment