When they are also dichogamous, they are necessarilydioecious in function.
Dioecious plants, however fertilised, have a great advantage over other plants in their cross-fertilisation being assured.
With respect to dioecious plants, distinct individuals must always fertilise each other.
A remarkable fact with respect to anemophilous plants is that they are often diclinous, that is, they are either monoecious with their sexes separated on the same plant, or dioecious with their sexes on distinct plants.
Change from the monoecious to the dioecious condition.
Change from the dioecious to the monoecious condition.
The sexual parts too are in many species of a doubtful character, while meantime there are both androgynous and dioecious individuals.
They divide into androgynous and dioecious plants.
Dioecious is a word derived from the Greek, and signifies two households; hence, dioecious reproduction is sexual generation by male and female individuals.
I am glad that you are attending to the colours of dioecious flowers; but it is well to remember that their colours may be as unimportant to them as those of a gall, or, indeed, as the colour of an amethyst or ruby is to these gems.
In dioecious plants we must aim at the reproduction of brothers and sisters.
It seems that you attribute such cases as that of the dioecious Rhamnus and your own of Valeriana to the existence of two forms with larger and smaller flowers.
I know it is not new; but how wonderful his account of the spermatozoa of some dioecious alga or conferva, swimming and finding the minute micropyle in a distinct plant, and forcing its way in!
In our British dioecious Viscum I suppose it must be necessary.
Hooker tells me that a dioecious parasitic plant allied to Rafflesia has its two sexes parasitic on two distinct species of the same genus of plants; so look out for some such case in the two forms of Cynips.
In such a typical moss as Funaria, we have the following cycle of developments: The sexual generation is a dioecious leafy structure, having a central elongated axis, with leaves arranged regularly around and along it.
Indeed, when a plant has monoecious or dioecious flowers, the distinction between the asexual and the sexual generation has practically been lost, and the spore-bearing generation has become identified with the sexual generation.
The conversion in various ways of hermaphrodite into dioecious plants.
It has already been remarked in the Introduction that andro-dioecious species, as they may be called, or those which consist of hermaphrodites and males, are extremely rare, or hardly exist.
Difference in the size of the corolla in the forms of polygamous, dioecious, and gyno-dioecious plants.
In my seventh chapter some observations will be given on the gradual conversion of heterostyled and of ordinary hermaphrodite plants into dioecious or sub-dioecious species.
Should these statements be confirmed, Mitchella will be proved to be heterostyled in one district and dioecious in another.
The two or three forms of the same heterostyled species do not differ from one another in general habit or foliage, as sometimes, though rarely, happens with the two sexes of dioecious plants.
This case appears to me very interesting, as showing how gradually an hermaphrodite plant may be converted into a dioecious one.
There can be no doubt that the dioecious state is a very early one, and that the majority of existing cases of hermaphroditism are secondary.
It is a dioecious plant, having male or barren pale yellow flowers upon one tree, and female or fertile flowers upon another.
Hairy on the margins and midrib beneath, smooth above; dioecious (n.
An immense family, in temperate regions chiefly herbs, without stipules, with perfect, polygamous, monoecious or dioecious flowers.
Shrubs or small trees, with loosely pinnately veined leaves, and greenish polygamous or dioecious flowers, in axillary clusters.
Shrubs, with resinous-dotted leaves, with or without stipules, and monoecious or dioecious flowers, both kinds in short scaly aments.
Heads dioecious (all pistillate or all staminate).
Aquatic herbs, with floating or submerged leaves; and conspicuous, regular, dioecious flowers.
A shrub with silvery scales; alternate, entire, exstipulate leaves; and inconspicuous, dioecious flowers.
In warmer countries monoecious and dioecious grasses are more frequent.
Spinifex, a dioecious grass, is widespread on the coasts of Australia and eastern Asia, forming an important sand-binder.
According to Bilharz, this distomian is dioecious, the male being of considerable size, the female slender and delicate, which fact does not agree with the usual characteristics of dioecious animals.
These are distomes which act really like dioecious worms.
Willows and some otherdioecious flowers are so fertilized, chiefly by bees.
This is a stout, rigid, much branched, gregarious and dioecious grass, flourishing in sand on the sea coast.
Dioecious having the sexes separated on two distinct individuals, 45.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "dioecious" in a variety of sentences. We hope that you will now be able to make sentences using this word.
