Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
genus within thefamily Polyporaceae — many bracket fungi.
Etymologies
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Examples
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The _Polyporus_ had then invaded the hollow, and the acorns, and had dissolved and destroyed the cellular and starchy contents of the latter, leaving only the cuticularized and corky shells, looking exactly like fossil eggs in the matrix.
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This is a block of wood containing an enormous irregularly spheroidal mass of the white felted mycelium of this fungus, _Polyporus sulphureus_.
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Here belong the toadstools and mushrooms (Fig. 51, _B_), the large shelf-shaped fungi (_Polyporus_), so common on tree trunks and rotten logs (Fig. 51, _C_, _D_, _E_), and the prickly fungus
Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
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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.
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In the _Polyporus_ [13] an acid has been found peculiar to it, as in many plants special compounds are found.
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Thomé says that Boletus laricis and Polyporus fomentarius yield the “amadou” of commerce.
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Every dead tree or branch in the forest is crowded with all species of Polyporus, while carpets, damp cellars, plaster walls and sawdust are favorite abodes of many fungi.
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During the Tertiary period members of the genera now known under the names of Lenzites, Polyporus, and Hydnum were all in existence.
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Then, again, the birch Polyporus, P. betulinus, is used for razor strops.
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_Polyporus betulinus_, a fungus, are its chief enemies.
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