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Monocotyledons
monocotyledon
A subclass of angiosperm plants based on anatomical characteristics. They tend to have: ...
Cotyledons may be either epigeal, expanding on the germination of the seed, throwing off the seed shell and become photosynthetic above the ground; or hypogeal, not expanding, remaining below ground and not becoming photosynthetic.
the cotyledons spread apart
the primary leaves
grow to full size
turn green ...
Monocotyledons are different. For their leaves are held vertically, they will have the same number of stomata on the two epidermis.
The dicotyledons are in the class Magnoliopsida and have these features: either woody or herbaceous, flower parts usually in fours and fives, leaves usually net-veined, vascular bundles arranged in a circle within the stem, ...
Number of cotyledons -- The number of cotyledons found in the embryo is the actual basis for distinguishing the two classes of angiosperms, and is the source of the names Monocotyledonae ("one cotyledon") and Dicotyledonae ("two cotyledons").
Its uterine surface is divided by a series of fissures into Iobules or cotyledons, the fissures containing the remains of the septa which extended between the maternal and fetal portions.
In Figure 1, the mesophyll is divided into two conspicuously different regions, a characteristic common among the leaves of many dicotyledons.
These plants have seeds that have two cotyledons, two seed leaves of food for the embryo. Most of the flowers you see every day are dicots. They have flowers with petals in numbers of four and five.
a plant having two seed leaves or cotyledons; contrast with monocotyledon
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
...
dicots One of the two main types of flowering plants; characterized by having two cotyledons, floral organs arranged in cycles of four or five, and leaves with reticulate veins; include trees (except conifers) and most ornamental and crop plants.
true leaf. Any leaf produced after the cotyledons.
tuber. An enlarged, fleshy, underground stem with buds capable of producing new plants.
tuberization. The formation of tubers at the ends of stolons; tuber initiation.
dicotyledon A class of angiosperms in which the seedlings typically possess two cotyledons; commonly abbreviated to dicot.
diecdysis Condition in which ecdysis processes are going on continuously and one ecdysis cycle grades rapidly into another.
The structure involved in connecting the fetal and maternal tissues consisting of a cotyledon and a caruncle in the cotyledonary placenta. The cotyledons or chorionic villi are of fetal origin and "plug into" the caruncles or receptacles in the ...
(dye-cottle-ee-don) [Gk. di, double, two + kotyledon, a cup-shaped hollow]
A member of the class of flowering plants having two seed leaves, or cotyledons, among other distinguishing features; often abbreviated as dicot.
differentiation ...
 See also: Plant, Cells, Tissue, Organ, Trans
  
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