Category: Pteridophyta

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 thereconstructed plant STUDY THE FOSSIL SLIDE OF L.S. OF SPORANGIUM IDENTIFICATION OF HORNEOPHYTON LIGNIERI​ REFERENCES

RHYNIA CLASSIFICATION OF RHYNIA Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Psilophytopsida Class :- Rhyniopsida Order :- Rhyniales Family :- Rhyniaceae Genus :- Rhynia EXTERNAL FEATURES OF RHYNIA​ ANATOMY OF RHIZOME AND AERIAL SHOOT​ REPRODUCTIVE ORGAN OF RHYNIA​ IDENTIFICATION OF RHYNIA REFERENCES

CLASSIFICATION OF SELAGINELLA (SMALL CLUB MOSS) Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Lycopsida Class :-  Lycopodiopsida Order :- Selaginellales Family :- Selaginellaceae Genus :- Selaginella   EXTERNAL FEATURES OF SELAGINELLA (SMALL CLUB MOSS) Many species are prostrate, creeping on the ground e.g. S. kraussiana, others are sub-erect e.g. S. trachyphylla or erect e.g. S. erythropus. A few species climb with the help of rhizophores…

CLASSIFICATION OF PTERIDIUM (BRACKEN FERN) Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Pteropsida Class :- Leptosporangiatae Order :- Filicales Family :- Polypodiaceae Genus :- Pteridium Pteridium is cosmopolitan. It is widely distributed along the entire Himalayan tract. It grows particularly well at altitudes between 1,000 to 3,000 meters. P. aquilinum is found on forest floors, mountain slopes, open grasslands, etc.   EXTERNAL MORPHOLOGY OF PTERIDIUM (BRACKEN…

CLASSIFICATION OF PSILOTUM Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Psilotopsida Class :- Polypodiopsida Order :- Psilotales Family :- Psilotaceae Genus :- Psilotum   EXTERNAL FEATURES OF PSILOTUM​ The plant body may be pendent or erect and dwarfed (about 8 cm high) or may reach a height of 75-100 cm. It is differentiated into A basal rhizomatous system Aerial branches. Basal rhizomatous system is subterranean, brown…

CLASSIFICATION OF NEPHROLEPIS (SWORD FERN)​ Kingdom :-  Plantae Division :- Pteridophyta Sub-division :- Pteropsida Class :- Leptosporangiatae Order :- Filicales Family :- Polypodiaceae Genus :- Nephrolepis It is commonly found in tropics, but a few species like Nephrolepis acuta, N. tube rosa, etc. are also grown as ornamentals.   EXTERNAL MORPHOLOGY OF NEPHROLEPIS (SWORD FERN)​ The plant body IS a sporophyte. It is differentiated into roots, rhizome…

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.  …

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.…

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…