Difference between revisions of "Grass"
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| − | [[File:1992.197-E8613CR-d1.jpg|thumb|]] | + | [[File:1992.197-E8613CR-d1.jpg|thumb| Coiled grass tray<br>MFA# 1992.197]] |
== Description == | == Description == | ||
| − | Any of over 9000 species of grass. Grass is a perennial plant with long, cylindrical leaves that have been used for making paper, ropes, baskets, and fabric. For examples see: [ | + | Any of over 9000 species of grass. Grass is a perennial plant with long, cylindrical leaves that have been used for making paper, ropes, baskets, and fabric. For examples see: [[arundo donax]], [[bear grass]], [[cuscus grass]], [[eelgrass]], [[elephant grass]], [[elk grass]], [[esparto grass]], [[grass cloth]], [[horsetail]], [[papyrus]], [[ramie]], [[reed]], [[sedge]], [[silk grass]], and [[sorghum]]. |
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| + | [[File:2002.575-SC61748.jpg|thumb|Woodcut of grass<br>MFA# 2002.575]] | ||
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Gras (Deut.); gazon (Fr.); gräs (Sven.) | Gras (Deut.); gazon (Fr.); gräs (Sven.) | ||
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| + | == Physical and Chemical Properties == | ||
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| + | Paper fiber type: non-woody/grass. Using transmitted light microscopy, fibers appear thick-walled, short and cylindrical with pointed ends. grasses can be identified by associated cells, such as comma-shaped cells are (unique to [[Esparto grass]]), and serrated epidermal cells (tricomb cells), which are present in all grasses except bamboo. Many grasses have barrel shaped parenchyma cells, unwound spiral thickenings, or other cells that can help with identification. It is difficult to distinguish [[straw|cereal straws]] from each other. Appearance with [[Graff "C" stain]]: dark blue. Common pulping method: [[Soda]]. | ||
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| + | For specific paper fiber characteristics see: [[esparto grass]], [[bamboo]], and [[straw]]. | ||
== Additional Images == | == Additional Images == | ||
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File:grasscm.jpg|Several types of grasses | File:grasscm.jpg|Several types of grasses | ||
File:timothygrasspollenlarge.jpg|Grass | File:timothygrasspollenlarge.jpg|Grass | ||
| + | File:Esparto 40x serratedepi.jpg|Esparto paper pulp stained with Graff "C" stain | ||
| + | File:Rice 40x.jpg|Rice paper pulp stained with Graff "C" stain | ||
| + | File:Rice 40x smallvessels.jpg|Rice paper pulp stained with Graff "C" stain | ||
| + | File:Oat 40x serratedepi.jpg|Oat straw paper pulp | ||
| + | File:Oat 40x unwoundspirals.jpg|Oat straw paper pulp | ||
| + | File:Bamboo 10x.jpg|Bamboo pulp stained with Graff "C" stain | ||
</gallery> | </gallery> | ||
| + | == Resources and Citations == | ||
| − | + | * Wikipedia: http://en.wikipedia.org/wiki/Grass (Accessed Nov. 2, 2005) | |
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| − | * Wikipedia | ||
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | ||
Latest revision as of 12:19, 29 October 2020
Description
Any of over 9000 species of grass. Grass is a perennial plant with long, cylindrical leaves that have been used for making paper, ropes, baskets, and fabric. For examples see: Arundo donax, Bear grass, Cuscus grass, Eelgrass, Elephant grass, Elk grass, Esparto grass, Grass cloth, Horsetail, Papyrus, Ramie, Reed, Sedge, Silk grass, and Sorghum.
Synonyms and Related Terms
Gras (Deut.); gazon (Fr.); gräs (Sven.)
Physical and Chemical Properties
Paper fiber type: non-woody/grass. Using transmitted light microscopy, fibers appear thick-walled, short and cylindrical with pointed ends. grasses can be identified by associated cells, such as comma-shaped cells are (unique to Esparto grass), and serrated epidermal cells (tricomb cells), which are present in all grasses except bamboo. Many grasses have barrel shaped parenchyma cells, unwound spiral thickenings, or other cells that can help with identification. It is difficult to distinguish cereal straws from each other. Appearance with Graff "C" stain: dark blue. Common pulping method: Soda.
For specific paper fiber characteristics see: Esparto grass, Bamboo, and Straw.
Additional Images
Several types of grasses
Grass
Esparto paper pulp stained with Graff "C" stain
Rice paper pulp stained with Graff "C" stain
Rice paper pulp stained with Graff "C" stain
Oat straw paper pulp
Oat straw paper pulp
Bamboo pulp stained with Graff "C" stain
Resources and Citations
- Wikipedia: http://en.wikipedia.org/wiki/Grass (Accessed Nov. 2, 2005)
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998