Monday, January 30, 2012

Are hibiscus dicots or manicots?

Everything she said is right. But sometimes a picture is worth a 1000 words. Take a bean or pea seed and rub the skin off of the seed. What have you got? a seed with two halves. When you plant this seed you are going to get two seed leaves or cotyledons. Now try this with a corn seed. Remove the skin and now you have one seed, so one leaf gros you will have one leaf (same as grass)
Are hibiscus dicots or manicots?
She's right.
Reply:Based on t differentiation below; i would say that Hibiscus is a dicot.



Hibiscus, genus of plants, commonly called rose mallows, of the mallow family. The genus is native to warm, temperate regions of the northern hemisphere. The hibiscus flower is characterized by a five-pointed calyx that is surrounded by a set of colored bracts growing just beneath it, giving the appearance of a double calyx. The large, showy flowers have five petals, a column of fused stamens with kidney-shaped anthers, and several pistils. The fruit is a many-seeded, five-celled pod.



Flowers: In monocots, flowers are trimerous (number of flower parts in a whorl in threes) while in dicots the flowers are tetramerous or pentamerous (flower parts are in fours or fives).



Pollen: In monocots, pollen has one furrow or pore while dicots have three.



Seeds: In monocots, the embryo has one cotyledon while the embryo of the dicot has two.



Stems: In monocots, vascular bundles in the stem are scattered, in dicots arranged in a ring.



Roots: In monocots, roots are adventitious, while in dicots they develop from the radicle.

slice of onion, showing parallel veins in cross section

slice of onion, showing parallel veins in cross section



Leaves: In monocots, the major leaf veins are parallel, while in dicots they are reticulate.



However, these differences are not hard and fast: some monocots have characteristics more typical of dicots, and vice-versa. This is in part because "dicots" are a paraphyletic group with respect to monocots, and some dicots may be more closely related to monocots than to other dicots. In particular, several early-branching lineages of "dicots" share "monocot" characteristics, suggesting that these are not defining characters of monocots. When monocots are compared to eudicots, the differences are more concrete.



Hope that fits!





Homeworks? Assignments?



Visit this site:

ask4mytutor



avail Free Online Tutorial services

Mondays to Fridays

3:00pm to 12:00am PST
deodorizers

No comments:

Post a Comment