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" Y nearly half an inch long, by an eighth wide, egg-shaped at the point, and beset with minute teeth, which cause them to cling. The stems are very brittle, so that whenever the plant is disturbed, fragments are broken off. "
The Year-book of Facts in Science and Art - Pagina 256
geredigeerd door - 1855
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Cyclopaedia of the Natural Sciences

William Baird - 1858 - 613 pagina’s
...bottom. It is this property that is likely to make it injurious to the drainage. The stems are very brittle, so that whenever the plant Is disturbed, fragments are broken off, each of which is capable of becoming an independent plant. Its powers of increase are thus prodigious....
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The Microscope: Its History, Construction, and Applications

Jabez Hogg - 1861 - 635 pagina’s
...egg-shaped at the point, and beset with minute teeth, which cause them to cling. The stems are very brittle, so that whenever the plant is disturbed,...order to their increase, to be rooted in the bottom CM- sides of the river or drain in which they are found; but this is independent altogether of that...
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Nature and art [ed. by F.B. Ward].

Francis Beckford Ward - 1866
...egg-shaped at the point, and beset with minute teeth, which cause them to cling. The stems are very brittle, so that whenever the plant is disturbed fragments are broken off. Although at present it cannot propagate itself by seed, its powers of increase are prodigious, as every...
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Nature and Art, Volume 2

1867
...egg-shaped at the point, and ; beset with minute teeth, which cause them to cling. The stems are very brittle, so that whenever the plant is disturbed fragments are broken off. Although at present it cannot propagate itself by seed, its powers of increase are prodigious, as every...
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The Christian's penny magazine, and friend of the people [ed. by J. Campbell ...

Congregational union of England and Wales - 1868
...curious. The leaves are beset with minute teeth, which cause them to cling; and every fragment broken off is capable of becoming an independent plant, producing...extending itself indefinitely in every direction. Most water plants require roots; but this is independent altogether of that condition, and actually grows...
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The song of Christ's flock in the twenty-third Psalm

John Stoughton - 1868
...curious. The leaves are beset with minute teeth, which cause them to cling ; and every fragment broken off is capable of becoming an independent plant, producing...extending itself indefinitely in every direction. Most water-plants require roots ; but this is independent altogether of that condition, and actually grows...
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Bees, Silkworms, and the Aquarium

Samuel Orchart Beeton - 1868 - 127 pagina’s
...very pretty it looks with its brilliant green leaves. " Most of our water-plants," writes Mr. Hogg, " require, in order to their increase, to be rooted in the bottom or sides of the river in which they are found ; but this flourishes altogether independent of that condition, and actually...
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The microscope: its history, construction, and application: being a familiar ...

Jabez Hogg - 1869 - 762 pagina’s
...egg-shaped at the point, and beset with minute teeth, which cause them to cling. The stems are very brittle, so that whenever the plant is disturbed,...sides of the river or drain in which they are found; hut this is independent altogether of that condition, and actually grows as it travels slowly down...
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Beeton's Book of Poultry and Domestic Animals: Showing how to Rear and ...

Samuel Orchart Beeton - 1870 - 480 pagina’s
...very pretty it looks with its brilliant green leaves. " Most of our water-plants," writes Mr. Hogg, " require, in order to their increase, to be rooted in the bottom or sides of the river in which they are found ; but this flourishes altogether independent of that condition, and actually...
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The Book of the Thames: From Its Rise to Its Fall

Samuel Carter Hall, Mrs. S. C. Hall - 1877 - 460 pagina’s
...egg-shaped at the point, and beset with miaute, teeth, which cause them io cliag. The stems are very brittle, so that whenever the plant is disturbed, fragments are broken off. Although, at present, it cannot propagate itself by seed (all the flowers being male)- its powers of...
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