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The Origin and Development of the Lamellae in Coprinus micaceus
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The Origin and Development of the Lamellae in Coprinus micaceus

Author: Michael Levine
Edition/Format: Article Article : English
Publication:American Journal of Botany, v1 n7 (19140701): 343-356
Summary:
1. The carpophore primordium of Coprinus micaceus arises from the mycelium directly or from a rhizomorph. The young button makes its appearance from forty to sixty days after either cornmeal agar or soil media are inoculated with spores. 2. The pileus initial appears as a hemispherical mass of fine, narrow, interlacing septate hyphae having a dense cytoplasm which stains heavily with Flemming's triple. The  Read more...
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Details

Document Type: Article
All Authors / Contributors: Michael Levine
ISSN:0002-9122
Language Note: English
Unique Identifier: 5551152099
Awards:

Abstract:

1. The carpophore primordium of Coprinus micaceus arises from the mycelium directly or from a rhizomorph. The young button makes its appearance from forty to sixty days after either cornmeal agar or soil media are inoculated with spores. 2. The pileus initial appears as a hemispherical mass of fine, narrow, interlacing septate hyphae having a dense cytoplasm which stains heavily with Flemming's triple. The peripheral layer of cells of the carpophore primordium is differentiated very early in that they stain more deeply. 3. The primordium of the hymenium arises at or near the lower surface of the pileus primordium and appears in vertical section as two densely stained areas of palisade cells, symmetrically placed to the left and right above the center of the carpophore primordium. 4. A palisade of hyphal cells is formed pointing obliquely downward so as to form a series of arched ridges. These ridges form the young gills. The hymenial elements do not enclose the edge of a gill but enclose the notch between two gills. 5. The small opening formed at the point where the first formed palisade cells meet is the beginning of a gill chamber. The further development of palisade cells leads to the enlargement and further development of the gill chamber. 6. Longitudinal tangential sections show the gill chambers in series, one gill chamber between each pair of lamellae. The hyphae of the trama of each gill run straight through into the stipe below and the pileus above. I wish to express my deep appreciation to Professor R. A. Harper for his many helpful suggestions. I also wish to thank Professor W. G. Marquette for his assistance in making the microphotographs.

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Primary Entity

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1. The carpophore primordium of Coprinus micaceus arises from the mycelium directly or from a rhizomorph. The young button makes its appearance from forty to sixty days after either cornmeal agar or soil media are inoculated with spores. 2. The pileus initial appears as a hemispherical mass of fine, narrow, interlacing septate hyphae having a dense cytoplasm which stains heavily with Flemming's triple. The peripheral layer of cells of the carpophore primordium is differentiated very early in that they stain more deeply. 3. The primordium of the hymenium arises at or near the lower surface of the pileus primordium and appears in vertical section as two densely stained areas of palisade cells, symmetrically placed to the left and right above the center of the carpophore primordium. 4. A palisade of hyphal cells is formed pointing obliquely downward so as to form a series of arched ridges. These ridges form the young gills. The hymenial elements do not enclose the edge of a gill but enclose the notch between two gills. 5. The small opening formed at the point where the first formed palisade cells meet is the beginning of a gill chamber. The further development of palisade cells leads to the enlargement and further development of the gill chamber. 6. Longitudinal tangential sections show the gill chambers in series, one gill chamber between each pair of lamellae. The hyphae of the trama of each gill run straight through into the stipe below and the pileus above. I wish to express my deep appreciation to Professor R. A. Harper for his many helpful suggestions. I also wish to thank Professor W. G. Marquette for his assistance in making the microphotographs.

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