英语词汇“dioecious”造句的方法、技巧、例句及翻译-英语例句辞典

The former plants are termed self-incompatible hermaphrodites; the latter, dioecious species. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z

Most mollusks are dioecious animals and fertilization occurs externally, although this is not the case in terrestrial mollusks, such as snails and slugs, or in cephalopods. Fundamentals of Biology 2015-01-01T00:00:00Z

Mollusks are mostly dioecious and are divided into seven classes. Concepts of Biology 2013-04-25T00:00:00Z

If you want berries, remember that hollies are dioecious, meaning they come in male and female, and only the female bears fruit. These jolly hollies take any shape you like and brighten winter days 2022-12-10T05:00:00Z

Willows are dioecious; that is, male trees produce only male flowers, and female trees produce only female flowers. Spring Arrives on Kitten’s Paws 2018-04-04T04:00:00Z

This is not a sexist remark if you’re addressing a dioecious tree — simplified, a tree that grows either male or female flowers on separate plants. The Female Ginkgo Tree’s Acrid Smell of Success 2015-10-29T04:00:00Z

Species with male and female flowers borne on separate plants are termed dioecious, or “two homes,” examples of which are C. papaya and Cannabis. Fundamentals of Biology 2015-01-01T00:00:00Z

Red cedars are dioecious — individuals produce either male or female flowers. Red Cedar: An Urban Pioneer 2015-02-20T05:00:00Z

The hemp plant, like the hop, which is of the same natural order, Cannabinaceae, is dioecious, i.e. the male and female flowers are borne on separate plants. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z

A conspicuous example of a dioecious plant is the common aucuba, of which for years only the female plant was known in Britain. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" 2012-03-04T03:00:13.390Z

The date-palm is dioecious, the female trees, which are sometimes used as emblems, being always distinguished by the clusters of date fruit. Ancient Pagan and Modern Christian Symbolism With an Essay on Baal Worship, On The Assyrian Sacred "Grove," And Other 2012-01-05T03:00:28.663Z

Flowers monoecious or dioecious, unisexual, without a perianth, often in the form of cones, but never terminal on the main stem. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z

In warmer countries monoecious and dioecious grasses are more frequent. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z

Many modifications in details occur, and the plants may be dioecious. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z

Shrubs, with monoecious or dioecious flowers in catkins, and aromatic foliage. 1a. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State

This is a stout, rigid, much branched, gregarious and dioecious grass, flourishing in sand on the sea coast. A Handbook of Some South Indian Grasses

The flowers are dioecious, rarely monoecious, provided with one or two perianths. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z

The animals, like all the vertebrata, are dioecious, i.e., male or female. Text Book of Biology, Part 1: Vertebrata

The tree is dioecious, there being separate male and female trees. Studies of Trees

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. Scientific American Supplement, No. 531, March 6, 1886

The tree is dioecious, bearing male catkins on one plant, female on another. Scientific American Supplement, No. 360, November 25, 1882

One form only of many dioecious plants is to be found in cultivation, as, for instance some South American species of Ribes. Species and Varieties, Their Origin by Mutation

The date-palm is male and female, or dioecious, and requires communication, otherwise the fruit is dry and insipid. Travels in Morocco, Volume 2.

They then produced plenty of seed, but one of the two plants less than the other, as this species shows some tendency to be dioecious. Effects of Cross and Self Fertilisation in the Vegetable Kingdom

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. Scientific American Supplement, No. 531, March 6, 1886

Again, a species tending to become dioecious, with the stamens reduced in some individuals and with the pistils in others, often presents a deceptive appearance. The Different Forms of Flowers on Plants of the Same Species

In some instances, as with Silene, Gartner's view seems the most probable, namely, that it is caused by an inherent tendency in the species to become dioecious. The Variation of Animals and Plants under Domestication — Volume 2

I have already mentioned that the palm is male and female, or, as botanists say, dioecious; the Moors, however, pretend that the palm in this respect is just like the human being. Travels in Morocco, Volume 2.

With respect to dioecious plants, distinct individuals must always fertilise each other. Effects of Cross and Self Fertilisation in the Vegetable Kingdom

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! More Letters of Charles Darwin — Volume 2

The third Class consists of dioecious species, and the remarks made under the last class with respect to the amount of difference between the male and female flowers are here applicable. The Different Forms of Flowers on Plants of the Same Species

STRAWBERRIES. -remarkable varieties of. -hautbois dioecious. -selection in. -probable further modification of. -variegated, effects of soil on. The Variation of Animals and Plants under Domestication — Volume 2

In our British dioecious Viscum I suppose it must be necessary. More Letters of Charles Darwin — Volume 1

Hence it probably is, as Lecoq has remarked, that annual plants are rarely dioecious. Effects of Cross and Self Fertilisation in the Vegetable Kingdom

I cannot follow the steps by which such plants have been rendered dioecious, but when I read your article with more care I hope I shall understand. More Letters of Charles Darwin — Volume 2

A considerable number of plants generally ranked as polygamous exist under only two forms, namely, as hermaphrodites and females; and these may be called gyno- dioecious, of which the common Thyme offers a good example. The Different Forms of Flowers on Plants of the Same Species

In dioecious plants we must aim at the reproduction of brothers and sisters. Darwin and Modern Science

Although there is no reason to believe that heterostyled plants are regularly becoming dioecious, yet they offer singular facilities, as will hereafter be shown, for such conversion; and this appears occasionally to have been effected. The Different Forms of Flowers on Plants of the Same Species

When they are also dichogamous, they are necessarily dioecious in function. Effects of Cross and Self Fertilisation in the Vegetable Kingdom

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. More Letters of Charles Darwin — Volume 2

I will begin with the heterostyled, then pass on to certain dioecious, sub-dioecious, and polygamous species, and end with the cleistogamic. The Different Forms of Flowers on Plants of the Same Species

The conversion in various ways of hermaphrodite into dioecious plants. The Different Forms of Flowers on Plants of the Same Species

Difference in the size of the corolla in the forms of polygamous, dioecious, and gyno-dioecious plants. The Different Forms of Flowers on Plants of the Same Species

Juglans regia. anemophilous plants. fertilisation of Plantago. excretion of nectar. secretion of nectar to defend the plant. anemophilous and entomophilous plants. dioecious plants. Effects of Cross and Self Fertilisation in the Vegetable Kingdom

There are several groups of plants in which all the species are dioecious, and these exhibit no rudiments in the one sex of the organs proper to the other. The Different Forms of Flowers on Plants of the Same Species

The conversion in various ways of hermaphrodite into dioecious plants.— The Different Forms of Flowers on Plants of the Same Species

There is much difficulty in understanding why hermaphrodite plants should ever have been rendered dioecious. The Different Forms of Flowers on Plants of the Same Species

There are, no doubt, many unknown laws which govern the suppression of the male or female organs in hermaphrodite plants, quite independently of any tendency in them to become monoecious, dioecious, or polygamous. The Different Forms of Flowers on Plants of the Same Species

I have now given the few cases known to me in which heterostyled plants appear with some considerable degree of probability to have been rendered dioecious. The Different Forms of Flowers on Plants of the Same Species

Therefore the number of dioecious species which owe their origin to the transformation of heterostyled plants is probably not so large as might have been anticipated from the facilities which they offer for such conversion. The Different Forms of Flowers on Plants of the Same Species

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. The Different Forms of Flowers on Plants of the Same Species

Asa Gray speaks of the flowers of the American species as perfect, whilst those in the allied genus Celastrus are said to be "polygamo- dioecious." The Different Forms of Flowers on Plants of the Same Species

If these latter bushes and the more fertile female ones were to supplant the others, the spindle-tree would be as strictly dioecious in function as any plant in the world. The Different Forms of Flowers on Plants of the Same Species

This case appears to me very interesting, as showing how gradually an hermaphrodite plant may be converted into a dioecious one. The Different Forms of Flowers on Plants of the Same Species

This plant is well known to be dioecious. The Different Forms of Flowers on Plants of the Same Species

Moreover, trimorphic plants evidently come under the same category with dimorphic, and the former cannot be looked at as tending to become dioecious. The Different Forms of Flowers on Plants of the Same Species

Several other species of Rhamnus are said to be dioecious or sub-dioecious. The Different Forms of Flowers on Plants of the Same Species

Mr. Meehan has described the extreme variability of the corolla and calyx in this plant, and shows that it is dioecious. The Different Forms of Flowers on Plants of the Same Species

In the several works which I have consulted, one author alone says that the holly is dioecious. The Different Forms of Flowers on Plants of the Same Species

The plants hitherto described either show a tendency to become dioecious, or apparently have become so within a recent period. The Different Forms of Flowers on Plants of the Same Species

单词	dioecious
例句	dioecious The former plants are termed self-incompatible hermaphrodites; the latter, dioecious species. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z Most mollusks are dioecious animals and fertilization occurs externally, although this is not the case in terrestrial mollusks, such as snails and slugs, or in cephalopods. Fundamentals of Biology 2015-01-01T00:00:00Z Mollusks are mostly dioecious and are divided into seven classes. Concepts of Biology 2013-04-25T00:00:00Z If you want berries, remember that hollies are dioecious, meaning they come in male and female, and only the female bears fruit. These jolly hollies take any shape you like and brighten winter days 2022-12-10T05:00:00Z Willows are dioecious; that is, male trees produce only male flowers, and female trees produce only female flowers. Spring Arrives on Kitten’s Paws 2018-04-04T04:00:00Z This is not a sexist remark if you’re addressing a dioecious tree — simplified, a tree that grows either male or female flowers on separate plants. The Female Ginkgo Tree’s Acrid Smell of Success 2015-10-29T04:00:00Z Species with male and female flowers borne on separate plants are termed dioecious, or “two homes,” examples of which are C. papaya and Cannabis. Fundamentals of Biology 2015-01-01T00:00:00Z Red cedars are dioecious — individuals produce either male or female flowers. Red Cedar: An Urban Pioneer 2015-02-20T05:00:00Z The hemp plant, like the hop, which is of the same natural order, Cannabinaceae, is dioecious, i.e. the male and female flowers are borne on separate plants. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z A conspicuous example of a dioecious plant is the common aucuba, of which for years only the female plant was known in Britain. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7 "Horticulture" to "Hudson Bay" 2012-03-04T03:00:13.390Z The date-palm is dioecious, the female trees, which are sometimes used as emblems, being always distinguished by the clusters of date fruit. Ancient Pagan and Modern Christian Symbolism With an Essay on Baal Worship, On The Assyrian Sacred "Grove," And Other 2012-01-05T03:00:28.663Z Flowers monoecious or dioecious, unisexual, without a perianth, often in the form of cones, but never terminal on the main stem. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z In warmer countries monoecious and dioecious grasses are more frequent. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Many modifications in details occur, and the plants may be dioecious. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Shrubs, with monoecious or dioecious flowers in catkins, and aromatic foliage. 1a. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State This is a stout, rigid, much branched, gregarious and dioecious grass, flourishing in sand on the sea coast. A Handbook of Some South Indian Grasses The flowers are dioecious, rarely monoecious, provided with one or two perianths. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z The animals, like all the vertebrata, are dioecious, i.e., male or female. Text Book of Biology, Part 1: Vertebrata The tree is dioecious, there being separate male and female trees. Studies of Trees 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. Scientific American Supplement, No. 531, March 6, 1886 The tree is dioecious, bearing male catkins on one plant, female on another. Scientific American Supplement, No. 360, November 25, 1882 One form only of many dioecious plants is to be found in cultivation, as, for instance some South American species of Ribes. Species and Varieties, Their Origin by Mutation The date-palm is male and female, or dioecious, and requires communication, otherwise the fruit is dry and insipid. Travels in Morocco, Volume 2. They then produced plenty of seed, but one of the two plants less than the other, as this species shows some tendency to be dioecious. Effects of Cross and Self Fertilisation in the Vegetable Kingdom 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. Scientific American Supplement, No. 531, March 6, 1886 Again, a species tending to become dioecious, with the stamens reduced in some individuals and with the pistils in others, often presents a deceptive appearance. The Different Forms of Flowers on Plants of the Same Species In some instances, as with Silene, Gartner's view seems the most probable, namely, that it is caused by an inherent tendency in the species to become dioecious. The Variation of Animals and Plants under Domestication — Volume 2 I have already mentioned that the palm is male and female, or, as botanists say, dioecious; the Moors, however, pretend that the palm in this respect is just like the human being. Travels in Morocco, Volume 2. With respect to dioecious plants, distinct individuals must always fertilise each other. Effects of Cross and Self Fertilisation in the Vegetable Kingdom 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! More Letters of Charles Darwin — Volume 2 The third Class consists of dioecious species, and the remarks made under the last class with respect to the amount of difference between the male and female flowers are here applicable. The Different Forms of Flowers on Plants of the Same Species STRAWBERRIES. -remarkable varieties of. -hautbois dioecious. -selection in. -probable further modification of. -variegated, effects of soil on. The Variation of Animals and Plants under Domestication — Volume 2 In our British dioecious Viscum I suppose it must be necessary. More Letters of Charles Darwin — Volume 1 Hence it probably is, as Lecoq has remarked, that annual plants are rarely dioecious. Effects of Cross and Self Fertilisation in the Vegetable Kingdom I cannot follow the steps by which such plants have been rendered dioecious, but when I read your article with more care I hope I shall understand. More Letters of Charles Darwin — Volume 2 A considerable number of plants generally ranked as polygamous exist under only two forms, namely, as hermaphrodites and females; and these may be called gyno- dioecious, of which the common Thyme offers a good example. The Different Forms of Flowers on Plants of the Same Species In dioecious plants we must aim at the reproduction of brothers and sisters. Darwin and Modern Science Although there is no reason to believe that heterostyled plants are regularly becoming dioecious, yet they offer singular facilities, as will hereafter be shown, for such conversion; and this appears occasionally to have been effected. The Different Forms of Flowers on Plants of the Same Species When they are also dichogamous, they are necessarily dioecious in function. Effects of Cross and Self Fertilisation in the Vegetable Kingdom 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. More Letters of Charles Darwin — Volume 2 I will begin with the heterostyled, then pass on to certain dioecious, sub-dioecious, and polygamous species, and end with the cleistogamic. The Different Forms of Flowers on Plants of the Same Species The conversion in various ways of hermaphrodite into dioecious plants. The Different Forms of Flowers on Plants of the Same Species Difference in the size of the corolla in the forms of polygamous, dioecious, and gyno-dioecious plants. The Different Forms of Flowers on Plants of the Same Species Juglans regia. anemophilous plants. fertilisation of Plantago. excretion of nectar. secretion of nectar to defend the plant. anemophilous and entomophilous plants. dioecious plants. Effects of Cross and Self Fertilisation in the Vegetable Kingdom There are several groups of plants in which all the species are dioecious, and these exhibit no rudiments in the one sex of the organs proper to the other. The Different Forms of Flowers on Plants of the Same Species The conversion in various ways of hermaphrodite into dioecious plants.— The Different Forms of Flowers on Plants of the Same Species There is much difficulty in understanding why hermaphrodite plants should ever have been rendered dioecious. The Different Forms of Flowers on Plants of the Same Species There are, no doubt, many unknown laws which govern the suppression of the male or female organs in hermaphrodite plants, quite independently of any tendency in them to become monoecious, dioecious, or polygamous. The Different Forms of Flowers on Plants of the Same Species I have now given the few cases known to me in which heterostyled plants appear with some considerable degree of probability to have been rendered dioecious. The Different Forms of Flowers on Plants of the Same Species Therefore the number of dioecious species which owe their origin to the transformation of heterostyled plants is probably not so large as might have been anticipated from the facilities which they offer for such conversion. The Different Forms of Flowers on Plants of the Same Species 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. The Different Forms of Flowers on Plants of the Same Species Asa Gray speaks of the flowers of the American species as perfect, whilst those in the allied genus Celastrus are said to be "polygamo- dioecious." The Different Forms of Flowers on Plants of the Same Species If these latter bushes and the more fertile female ones were to supplant the others, the spindle-tree would be as strictly dioecious in function as any plant in the world. The Different Forms of Flowers on Plants of the Same Species This case appears to me very interesting, as showing how gradually an hermaphrodite plant may be converted into a dioecious one. The Different Forms of Flowers on Plants of the Same Species This plant is well known to be dioecious. The Different Forms of Flowers on Plants of the Same Species Moreover, trimorphic plants evidently come under the same category with dimorphic, and the former cannot be looked at as tending to become dioecious. The Different Forms of Flowers on Plants of the Same Species Several other species of Rhamnus are said to be dioecious or sub-dioecious. The Different Forms of Flowers on Plants of the Same Species Mr. Meehan has described the extreme variability of the corolla and calyx in this plant, and shows that it is dioecious. The Different Forms of Flowers on Plants of the Same Species In the several works which I have consulted, one author alone says that the holly is dioecious. The Different Forms of Flowers on Plants of the Same Species The plants hitherto described either show a tendency to become dioecious, or apparently have become so within a recent period. The Different Forms of Flowers on Plants of the Same Species
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