480 likes | 1.46k Views
Ferns and Fern Allies. Ferns and Fern Allies. Ferns. Shoot Primary Growth: Apical Cell. Fern: Shoots (Stem, Leaves) and Roots. Leaves: Circinate Vernation. Fern Leaf: Frond. Fern Leaf: Pinna and Pinnule. Stem: Stele (Protostele). Gleichenia. Stem: Stele (Siphonostele). Amphiphloic
E N D
Stem: Stele (Protostele) Gleichenia
Stem: Stele (Siphonostele) Amphiphloic Siphonostele Ectophloic Siphonostele
Stem: Solenostele Adiantum
Stem: Stele and Leaf Gaps (Non-Overlapping) Solenostele Fig. 13-21 in Gifford and Foster 1989
Stem: Dictylostele Polypodium
Stem: Stele (Siphonostele) and Leaf Gaps Overlapping Dictylostele Fig. 13-21 in Gifford and Foster 1989
Double Dictylostele Pteridium
Ecotophloic Siphonostele Osmunda
Tree Ferns Trunk Section Dicksonia
Fern Sporangium: Annulus Fig. 13-14 in Gifford and Foster 1989
Fern Sporangium: Sporangium Dehiscence Fig. 13-6 in Foster and Gifford 1989
Fern Sori Fig. 13-7 in Foster and Gifford 1989
Fern Sori: Marginal Position Hymenophyllum
Fern Sori: Marginal Position Fig. 13-7 in Foster and Gifford 1989
Fern Sori Position II: Intramarginal Adiantum
Fern Sori Position II: Intramarginal Fig. 13-18 in Foster and Gifford 1989
Fern Sori Position III: Abaxial or “Superficial” Phanerophlebia
Fern Sori Position III: Abaxial or “Superficial” Fig. 13-18 in Foster and Gifford 1989
Fern Leaves and Sporangia Fig. 13-5
Psilophyton (Early to Late Devonian)
Pertica (Devonian)
Pseudosporochnus (Middle Devonian)
Cladoxylon (Middle Devonian)
Rhacophyton (Late Devonian)
Putative Leaf Origins Microphylls Megaphylls VS. Telome Theory Enation Theory
1 http://www.uwgb.edu/biodiversity/herbarium/pteridophytes/lyccla_leaves01.jpg 2 http://www.biologie.uni-hamburg.de/b-online/library/webb/BOT311/ CellTissOrgan/LycoLeafX-sLab400.jpg 3 http://sols.unlv.edu/Schulte/Anatomy/Stems/LycopodiumStemSM.jpg 4 http://www.sunstar-solutions.com/sunstar/cornet92/nodalanat2.jpg