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Vascular Cryptogams<br />Post lab discussion<br />http://www.botany.hawaii.edu/faculty/Webb/BOT201/BOT201/201-98Theme.htm#...
Vascular cryptogams<br />Vascular plants that do not produce seeds<br />Spores only<br />Vascular tissues: tracheids and s...
Stele<br />Description of Vascular Tissues which develop from Procambium<br />Everything inside the Endodermis<br />
Protostele<br />Proto means first.<br />
Siphonostele<br />has a pith in the center<br />
Dictyostele<br />divided AmphiphloicSiphonostele<br />Concentric vascular bundles with an Endodermissurrounding the bundle...
Eustele<br />similar to the dictyostelebut the bundles lack an endodermis and are collateral or bicollateral<br />
Atactostele<br />collateral bundles distributed in more that one ring within the Stem<br />no Endodermis<br />
Vascular cryptogams<br />Division Psilotophyta<br />Division Lycophyta – Selaginella and Lycopodium<br />Division Pterophy...
Lycophyta<br />erect stems as well as Stolons and Rhizomes<br />can be epiphytic<br />have Microphylls (leaves) and Roots<...
Lycopodium<br />
LycopodiumStem x.s.<br />
Selaginella<br />
SelaginellaStem x.s.<br />
Trabeculae<br /><ul><li>cells of the endodermis
highly elongated and span an air space</li></li></ul><li>Selaginella Root x.s.<br />
Division Pterophyta<br />Rhizomatous, stolon<br />Roots are adventitious<br />Megaphyll<br />predominate organizational pa...
Megaphyll<br />produced complex stelar organization in some ferns<br />Leafy stems have dissected steles while Rhizomes (p...
with leaf gap starting<br />to form<br />No leaf gap<br />
Pteris root xs<br />cortex<br />endodermis<br />xylem<br />phloem<br />
Fern  rhizome xs<br />
Division Sphenophyta<br />Aerial Stems & Rhizomes<br />Grooved, Jointed<br />Microphyll, Whorled Arrangement<br />
Leaves are fused and form a sheath around the stem at each node. <br />The number of tips signifies the number of leaves.<...
Equisetumxs<br />Hollow canals- <br />Cells Destroyed by Elongation<br />Central canal<br />
<ul><li>Thick Walls
Cutenized
Rough Surface = Silicon
(Nick name = </li></ul>Scouring Rush)<br />Epidermis<br />
Sclerenchyma (Ridges)<br />Cortical (Vallecular) Canals<br />CollenchymaChlorenchyma<br />Cortex<br />
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Vascular Cryptogams Postlab

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Post lab lecture about Vascular Cryptogams
Dept of Biology, UP Manila

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Vascular Cryptogams Postlab

  1. 1. Vascular Cryptogams<br />Post lab discussion<br />http://www.botany.hawaii.edu/faculty/Webb/BOT201/BOT201/201-98Theme.htm#Plantae:%20Pterophyta<br />
  2. 2. Vascular cryptogams<br />Vascular plants that do not produce seeds<br />Spores only<br />Vascular tissues: tracheids and sieve cells<br />
  3. 3.
  4. 4.
  5. 5. Stele<br />Description of Vascular Tissues which develop from Procambium<br />Everything inside the Endodermis<br />
  6. 6. Protostele<br />Proto means first.<br />
  7. 7. Siphonostele<br />has a pith in the center<br />
  8. 8. Dictyostele<br />divided AmphiphloicSiphonostele<br />Concentric vascular bundles with an Endodermissurrounding the bundle<br />
  9. 9. Eustele<br />similar to the dictyostelebut the bundles lack an endodermis and are collateral or bicollateral<br />
  10. 10. Atactostele<br />collateral bundles distributed in more that one ring within the Stem<br />no Endodermis<br />
  11. 11. Vascular cryptogams<br />Division Psilotophyta<br />Division Lycophyta – Selaginella and Lycopodium<br />Division Pterophyta– ferns<br />Division Sphenophyta– horsetails or Equisetum<br />
  12. 12. Lycophyta<br />erect stems as well as Stolons and Rhizomes<br />can be epiphytic<br />have Microphylls (leaves) and Roots<br />Branching is Dichotomous for both organs<br />
  13. 13.
  14. 14. Lycopodium<br />
  15. 15.
  16. 16. LycopodiumStem x.s.<br />
  17. 17. Selaginella<br />
  18. 18. SelaginellaStem x.s.<br />
  19. 19. Trabeculae<br /><ul><li>cells of the endodermis
  20. 20. highly elongated and span an air space</li></li></ul><li>Selaginella Root x.s.<br />
  21. 21. Division Pterophyta<br />Rhizomatous, stolon<br />Roots are adventitious<br />Megaphyll<br />predominate organizational pattern for fern leaves is Pinnate.<br />
  22. 22.
  23. 23. Megaphyll<br />produced complex stelar organization in some ferns<br />Leafy stems have dissected steles while Rhizomes (produce few or no leaves) have relatively undissected steles.<br />
  24. 24. with leaf gap starting<br />to form<br />No leaf gap<br />
  25. 25. Pteris root xs<br />cortex<br />endodermis<br />xylem<br />phloem<br />
  26. 26. Fern rhizome xs<br />
  27. 27.
  28. 28. Division Sphenophyta<br />Aerial Stems & Rhizomes<br />Grooved, Jointed<br />Microphyll, Whorled Arrangement<br />
  29. 29. Leaves are fused and form a sheath around the stem at each node. <br />The number of tips signifies the number of leaves.<br />
  30. 30. Equisetumxs<br />Hollow canals- <br />Cells Destroyed by Elongation<br />Central canal<br />
  31. 31. <ul><li>Thick Walls
  32. 32. Cutenized
  33. 33. Rough Surface = Silicon
  34. 34. (Nick name = </li></ul>Scouring Rush)<br />Epidermis<br />
  35. 35. Sclerenchyma (Ridges)<br />Cortical (Vallecular) Canals<br />CollenchymaChlorenchyma<br />Cortex<br />
  36. 36. Vascular bundles<br />Opposite the ridges<br />Stele: eustele<br />
  37. 37. Vascular (carinal) canal<br />caused by the destruction of Protoxylem during Elongation<br />May serve for conduction but not efficient<br />
  38. 38. Vascular bundle<br />Endarch<br />Tracheids, in some vessels<br />Sieve elements<br />metaxylem<br />protoxylem<br />

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