from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to the dicotyledons.
- adj. Having two cotyledons.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having two cotyledons or seed lobes.
from The Century Dictionary and Cyclopedia
- In botany, having two cotyledons: as, a dicotyledonous embryo, seed, or plant.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (of a flowering plant) having two cotyledons in the seed
Sorry, no etymologies found.
` ` No, dear, not every one; plants are divided into two kinds: those which have two food leaves, like these plants, and those which have only one; these are called dicotyledonous, and the ones which have but one food leaf are monocotyledonous.
"No, dear, not every one; plants are divided into two kinds: those which have two food leaves, like these plants, and those which have only one; these are called dicotyledonous, and the ones which have but one food leaf are monocotyledonous.
And even though I hate sweet potatoes (I'm sorry, I do), I appreciate that there exists a sweet potato pie, because it's so charming and so authentically American (and here comes someone in the comment section below to lecture me that sweet potatoes, or yams, or a "dicotyledonous plant belonging to the family Convolvulaceae", or what have you are actually native to Africa).
The ground flora consists of grasses such as Digitaria diagonalis, Loudetia simplex, and Themeda triandra, dicotyledonous herbs, ferns (particularly brackenfern Pellaea spp.) and creepers such as Smilax kraussiana.
The potato is a herbaceous, freely branching dicotyledonous perennial, usually between 30 and 100 cm tall, with alternate, pinnately compound leaves, made up of three or four pairs of oval leaflets and a terminal leaflet.
Now, _Polyporus dryadeus_ and _P. igniarius_ are such fungi; their hyphæ excrete a ferment which completely destroys the starch grains in the cells of the medullary rays of the oak, a tree very apt to be attacked by these two parasites, though _P. igniarius_, at any rate, attacks many other dicotyledonous trees as well.
From that time onwards, so long as these Gymnosperms were, as was usual, reckoned as dicotyledonous flowering plants, the term Angiosperm was used antithetically by botanical writers, but with varying limitation, as a group-name for other dicotyledonous plants.
Such bundles as these are called = closed vascular bundles = to distinguish them from the dicotyledonous type of vascular bundles which are called = open vascular bundles = on account of the existence of the cambium.
= -- A lessened number of sepals is not a very common occurrence among dicotyledonous plants.
= -- An increased number of stamens frequently accompanies the corresponding alterations in other whorls, and seems, if anything, to be more frequent among monocotyledonous plants than among dicotyledonous ones; thus, we occasionally find tetramerous flowers in _Crocus_, _Hyacinthus_, _Tulipa_, _Iris_,