aj hm apko botany kingdom kai bare mai btane wali hun aur aj ka topic he- "general account of ptridophyta and classification
pteridophyta
pteridophyta jish mai vascular cryptogams bhhi kaihte hai embryophyta ka main class hai
size and form pteridophyta class ke
sadsyo me apne size and form me kabphi bhinyta hoti he is class ke kux pothe small size,annuans hote he tatha dusre kux pothe large and perennians hote he is class ke pothe prayah cool,damp shady asdano per ugte hai pteridophyta class ke pothe 2 prkar ke ho skte he 1 to vo jinme stamp small and size aur leave bigger in size hoti he jese parfm me in potho ko mega fellus type khte he dusre ve pothe jinme stamp bigger in size and leave small in size hoti he jese senaginella,equisteum e.t.c ese pothe ko micro fellus pteridophyta class ka purn viksit potha sporophttis hota he tatha yha nischit stamp,leaf and root me bhinn hota he...
STAMP-IN POTHO KA TANA PRAYAH AERIAL KBHI KBHI UNDER GROUND HOTA HE STAMP PPRAYAH HERBACEOUS HOTA HE internal structre sclerenchmatous hypodermis,parenchymetus cortex and middle me stele hoti he.
STELE
stele se xyle,phloem hota he protostelic se po ly stelyc conditeions tab ho sakti he..
LEAF AND ROOT
1LEAF-.INME PATTIYA YA TO SIMPLE ATHWA PINNATELY COMPOUND HOTI HE
2.ROOT- IS CLASS KE POTHO KI ROOT PRAYAH ADVANTATIUOS HOTI HE
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