II 2011 11UBO230204 PTERIDOPHYTES, GYMNOSPERMS AND PALEOBOTANY SECTION ... Palaeobotany is a branch of botany which deals with a) living plants b) Fossil plants c) Flowering plants d) all of ... Write a short note on reproduction in rhynia. SECTION – C. Answer any FOUR questions ...
Date added: November 20, 2013 - Views: 5
The genera Rhynia, ... Pteridophytes, lycophytes and progymnosperms are more complex groups that were dominant from the Late Devonian through the Carboniferous, ... No fossil has been found with wood more than about 10 cm thick. HETEROSPORY.
Date added: January 31, 2013 - Views: 18
Course III Pteridophytes, ... (Rhynia, Horneophyton, Psilophyton) and Psilotales (Psilotum, ... General account of fossil Pteridophytes. GYMNOSPERMS. Classification and distribution of Gymnosperms with special reference to India. Study of their morphology, ...
Date added: December 31, 2013 - Views: 14
Unit-5: A brief study of the following fossil forms Rhynia, Lepidodendron, Lepidocarpon, Calamites and Williamsonia. Books for Study: Pteridophytes . ... Pteridophytes, Gymnosperms, Paleobotany, Biostatistics and . Computer applications in Botany.
Date added: September 15, 2013 - Views: 26
Rhynia, Asteroxylon. Class 2: Psilotopsida - includes most primitive living vascular cryptogams. Order: Psilotales eg. Psilotum. Class 3 ... This class includes both living and fossil pteridophytes. The living members are commonly called horsetails. This class has 4 orders viz. Hyeniales ...
Date added: January 30, 2012 - Views: 86
Fossils of Pteridophytes: Rhynia ((MH 473/JRM 271-272). Lepidodendron (MH 485-487/JRM 272-273/GK 954-55) and Lepidostrobus (MH 487-488/GK 956). The false seed: Lepidocarpon (MH 491/GK 957).
Date added: November 20, 2013 - Views: 6
Pteridophytes resemble the seed ... All members (living and fossil) of division pteridophyta have eusporangiate sporangia (except pteropsida). ... of the stem are similar to those of Rhynia , the basal corm lacks any evidence of vasculaxization .
Date added: January 1, 2013 - Views: 5
Pteridophytes: General characters, classification, ... (5 h) Structure, reproduction, life history and systematic position of Rhynia, Lycopodium, Equisetum and Marsilea. ... G- Fossil – Photograph/slide (Diagrams not necessary)
Date added: August 9, 2013 - Views: 20
Study of morphological details of fossil pteridophytes with particular reference to Rhynia, Trimerophyton and Zosterophyton. Study of morphology, anatomy, reproduction and life cycle pattern in Psilotum. Section-B. Diagnostic characters of Lycopsida.
Date added: May 3, 2013 - Views: 10
Unit 1: Pteridophytes – History – origin of pteridophytes – general characters – classification (Sporne, 1970) ... Radiocarbon dating. A brief study of the following fossil forms Rhynia, Lepidodendron, Lepidocarpon, Calamites and Williamsonia.
Date added: May 19, 2013 - Views: 24
Fossil records, biochemical and ... the Rhynia-type plants of the earliest Devonian period evolved very rapidly and radiated (see: ( radiation of biological species: has nothing to do with radioactivity!) ... pteridophytes were the first vascular plants ...
Date added: August 3, 2013 - Views: 5
In X. Li, ed. Fossil ... Edwards, D., and U. Fanning. 1985. Evolution and environment in the late Silurian-early Devonian: the rise of the pteridophytes ... On Old Red Sandstone plants showing structure, from the Rhynie Chert Bed, Aberdeenshire, Part II. Additional note on Rhynia ...
Date added: July 8, 2014 - Views: 1
Stelar evolution in pteridophytes, Heterospory and origin of seed habit. Structure, development and evolution of sorus in Filicales. Phyletic slide ... Study of morphology and anatomy of the vegetative and reproductive structure in the following fossil forms: Rhynia, Lepidodendron ...
Date added: April 1, 2014 - Views: 4
-Pteridophytes . General characteristics. Diversity in morphology. Concept of vasculature ... Fossil Pteridophyte : Rhynia . Fossil Gymnosperm: Williamsonia. Fossil Angiosperm : Palmoxylon. Indian contribution to Palaeobotany 1 hour. Reference.
Date added: May 14, 2012 - Views: 96
Fossil bryophytes, physiology and morphogenesis. SUGGESTED READINGS: Cavers, F. 1979. The Interrelationships of the Bryophytes Reprint. ... General topics: Origin and evolution of Pteridophytes, Heterospory and seed habit. GYMNOSPERMS.
Date added: July 5, 2014 - Views: 1
Structure and reproduction of the following fossil types. Rhynia, Lepidodendron and Sphenophyllum. UNIT - IV General characters of Gymnosperms - classification of gymnosperms according to K.R. Sporne. Structure ... PTERIDOPHYTES, GYMNOSPERMS AND PALAEOBOTANY -Lab Course ...
Date added: November 13, 2012 - Views: 59
General characters and classification of the Pteridophytes according to K.R. Sporne, stelar evolution in Pteridophytes, ... A brief study of the following fossil types: Pteridophyte fossils – Rhynia, Lepidodendron, Lepidocarpon and Lyginopteries. Gymnosperm fossils: Pentoxylon and Williamsonia.
Date added: April 8, 2014 - Views: 3
Rhynia – rekonstrukce vzhledu rostliny. ... http://skywalker.cochise.edu/wellerr/fossil/planttree/6fssl-plant-lepidodendron2-pa-dechant.jpg 6.3.2009. ... http://lesbeauxjardins.com/cours/botanique/8-pteridophytes/psaronius.jpg.
Date added: May 28, 2013 - Views: 2