Author: admin

  • MARSILEA

    MARSILEA

    CLASSIFICATION OF MARSILEA Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Pteropsida Class :- Leptosporangiatae Order :- Marsileales Family :- Marsileaceae Genus :- Marsilea The two Indian species, Marsilea minuta and M. quadrifolia, are commonly found growing either in shallow water or on moist banks of ponds and ditches. They grow either completely submerged or partially or entirely out of water in damp and wet places.  …

  • LYCOPODIUM (CLUB MOSS)

    LYCOPODIUM (CLUB MOSS)

    CLASSIFICATION OF LYCOPODIUM (CLUB MOSS) Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Lycopsida Class :-  Lycopodiopsida Order :- Lycopodiales Family :- Lycopodiaceae Genus :- Lycopodium   EXTERNAL FEATURES OF LYCOPODIUM (CLUB MOSS)​ The plant body consists of creeping rhizome which gives off slender, elongated aerial branches from the upper side and adventitious roots from the lower. The aerial branches vary from 3-8 inches in length. L.…

  • EQUISETUM (HORSE TAILS MOSS)

    EQUISETUM (HORSE TAILS MOSS)

    CLASSIFICATION OF EQUISETUM (HORSE TAILS MOSS) Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Sphenopsida Class :-  Polypodiopsida Order :- Equisetales Family :- Equisetaceae Genus :- Equisetum   EXTERNAL FEATURES OF EQUISETUM (HORSE TAILS MOSS) The plants are erect and bushy. The plant is differentiated into roots, rhizome, aerial branches and leaves. The underground rhizomehas distinct nodes and internodes. The nodes bear aerial branches and roots. The rootsare…

  • AZOLLA

    AZOLLA

    CLASSIFICATION OF AZOLLA Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Pteropsida Class :- Leptosporangiatae Order :- Salviniales Family :- Salviniaceae Genus :- Azolla Azolla forms red coloured bloom in ditches and ponds. It is found floating freely on the surface of water. Common Indian species is A. pinnata. Another species A. filiculoides is also known to occur frequently while the third species A. imbricata is found…

  • ADIANTUM (MAIDEN HAIR FERN)

    ADIANTUM (MAIDEN HAIR FERN)

    CLASSIFICATION OF ADIANTUM (MAIDEN HAIR FERN)​ Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Pteropsida Class :- Leptosporangiatae Order :- Filicales Family :- Adiantaceae Genus :- Adiantum   EXTERNAL FEATURES OF ADIANTUM (MAIDEN HAIR FERN)​ Plant bodyis a sporophyte. It is differentiated into roots, rhizome and leaves. Rootsare produced on the lower side of the rhizome. Primary root is short-lived. Secondary roots are adventitious and branched. Rhizomemay…

  • WILLIAMSONIA

    WILLIAMSONIA

    CLASSIFICATION OF WILLIAMSONIA Kingdom :-  Plantae Division :- Gymnospermae Class :- Cycadopsida Order :- Bennettitales Family :- Williamsoniaceae Genus :- Williamsonia   TO STUDY THE EXTERNAL FEATURES OF THE PLANT Many species have so far been reported from upper Triassic and Jurassic beds of India, Europe and north America. It was earlier placed under Zamia gigas by Williamson (1868). Later it was named in honour of…

  • LYGINOPTERIS

    LYGINOPTERIS

    CLASSIFICATION OF LYGINOPTERIS Kingdom :-  Plantae Division :- Gymnospermae Class :- Cycadopsida Order :- Pterdospennales Family :- Lyginopteridaceae Genus :- Lyginopteris   STUDY OF EXTERNAL MORPHOLOGY OF THE STEM​ Lyginopteris is a palaeozoic pteridosperm. It is a stem genus of Calymatotheca Hoeninghausi. The descriptions of Lyginopteris Oldhamia are available. The genus was described under Dadoxylon oldhamium by Binney in 1886. Later the genus was transferred to…

  • LEPIDODENDRON​

    LEPIDODENDRON​

    CLASSIFICATION OF LEPIDODENDRON​ Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Lycopsida Class :-  Lycopodiopsida Order :- Lepidodendrales Family :- Lepidodendraceae Genus :- Lepidodendron   STUDY OF THE EXTERNAL FEATURES OF THE PLANT​ OF LEPIDODENDRON​ Lepidodendron with over 100 species, is the largest known genus. It is found in the shales and sandstones of carboniferous coal bearing formations. The root system is included in the form…

  • HORNEOPHYTON LIGNIERI​

    HORNEOPHYTON LIGNIERI​

    CLASSIFICATION OF HORNEOPHYTON LIGNIERI​ Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Psilophytopsida Class :- Rhyniopsida Order :- Rhyniales Family :- Rhyniaceae Genus :- Horneophyton   Study of the external features of the reconstructed plant Homeophyton with one species H. lignieri was found with Rhynia in the Rhynichert bed of Aberdeenshire, Scotland. It was previously named as Homeo. The rhizome was a lobed parenchymatous body bearing non-septate…