Post on 04-Jan-2016
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Equisetum (Horsetail; Scouring Rush)
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Fun Facts
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15Evolutionary Significance
(Carboniferous: 360-300 MYA)
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Life Cycle
Sporophyte: Stem and Leaves
Sporophyte: Photosynthesis
Leaves, Bud Primordia, Root Primordia
Fig. 10-5 in Foster and Gifford 1989
Sporophyte: Shoot Growth Form
Sporophyte: Primary Growth
Sporophyte: Intercalary Growth
IntercalaryMeristem
IntercalaryMeristem
Stem Anatomy
Sporophyte: Stem Anatomy(Collenchyma)
Vallecular Canal
Carinal Canal
Pith Canal
Sporophyte: Stem Anatomy(Canals)
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Sporophyte: Stem Anatomy(Carinal Canals (= Vascular Canals))
Xylem Phloem
Parenchyma
Sporophyte: Stem Anatomy(Endodermis)
Figs. 10-8, 10-9 in Gifford and Foster 1989
Sporophyte: Stem Anatomy(Vasculature)
Sporophyte: Root(Primary Root, Root Primordia)
Sporophyte: Strobilus Position
Sporophyte: Strobilus
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Sporophyte: Sporangium and Tapetum
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Sporophyte: Spores, Elaters
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Fig. 10-16 in Gifford and Foster 1989
Gametophyte Sexuality
Gametangia
Equisetum: Embryo Development
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Embryo Development
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1 http://www.smianalytical.com/img/silica-dust.jpg
2 http://www.tcnj.edu/~mckinney/Equisetum%20May%2002-1.jpg
3 http://www.floralimages.co.uk/images/equisetum_ramosissimum_1297.jpg
4 http://www.plant-identification.co.uk/images/equisetaceae/equisetum- arvense-1.jpg
5 http://www.sbs.utexas.edu/bio406d/images/pics/equ/Equisetum%20hyemale %20strobilus.jpg
6 http://www.puc.edu/Faculty/Gilbert_Muth/phot0159.jpg
7 http://www.cartage.org.lb/en/themes/sciences/BotanicalSciences/Classification Plants/Cryptogamia/Bryophyta/NonvascularPlants/equ_sp_cu.jpg
8 http://www.stolaf.edu/people/ceumb/bio252/Equisetum.jpg
9 http://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Equisetum _strobilus_xs_of_wm_showing_sporangiophores.jpg/655px-Equisetum_
strobilus_xs_of_wm_showing_sporangiophores.jpg
10 http://www.tradenote.net/images/users/000/099/079/products_images/Silica_Fume_ SiO2.jpg
11 http://www.cphotois.com/images/shard.jpg
12 http://www.spokesmanreview.com/blogs/freshsheet/media/r_IMG_8001.JPG
13 http://www.floralimages.co.uk/images/equisetum_ramosissimum_1297.jpg
14 http://www.arcadiastreet.com/cgvistas/images/earth_calamites_&_dreps_ 600.jpg
15 http://www.museum.state.il.us/exhibits/mazon_creek/images/calamites_x1.gif
16 http://www.museum.state.il.us/exhibits/mazon_creek/images/calamites_big.gif
17 http://www.csupomona.edu/~jcclark/classes/bot125/resource/graphics/g/sph_equ_stm.jpg
18 http://www.csupomona.edu/~jcclark/classes/bot125/resource/graphics/g/sph _equ_stm.jpg
19 http://www.palaeos.com/Plants/Lists/Glossary/Images/Stoma.jpg
20 http://science.exeter.edu/jekstrom/JPEG/Eq_vas~1.jpe
21 http://www.puc.edu/Faculty/Gilbert_Muth/phot0156.jpg
22 http://botit.botany.wisc.edu/images/130/Fern_Allies/Sphenophyta/ Equisetum/Equisetum_spores_MC.jpg
23 http://upload.wikimedia.org/wikipedia/commons/thumb/0/09/Equisetum _strobilus_wm.jpg/800px-Equisetum_strobilus_wm.jpg
24 http://upload.wikimedia.org/wikipedia/commons/thumb/0/09/Equisetum_ strobilus_wm.jpg/800px-Equisetum_strobilus_wm.jpg
25 http://www.botany.hawaii.edu/faculty/webb/BOT201/EQUISETU/ Endodermis.jpg
26 http://www.puc.edu/Faculty/Gilbert_Muth/phot0160.jpg
27 http://www.toyen.uio.no/palmus/galleri/montre/a31741.jpg
28 http://www.humboldt.edu/~natmus/lifeThroughTime/Pennsylvanian. web/266.jpg
29 http://www.museum.state.il.us/exhibits/mazon_creek/images/annularia_ x1.gif