Gyanalay is a YouTube channel. We believe in sharing knowledge.
Biology for NEET/ AIIMS/JISPER/BHU/NCERT/B.Sc
Pteridophytes are divided into four divisions.
1. Psilophyta/Psilopsida
E.g. Psilotum, Rhynia
2. Lycophyta/Lycopsida
E.g. Lycopodium, Selaginella
3. Sphenophyta/Sphenopsida
E.g. Equisetum, Hynia
4. Pterophyta/Pteropsida
E.g. Pteris, Adiantum
To watch the video click the link below
Thanks for watching.
Please share, support and subscribe.
Biology for NEET/AIIMS/JISPER/BHU/NCERT etc. (Bilingual : English-Hindi)
Pteridophytes are first group of terrestrial plants which are vascular . They possess vascular tissues like xylem and phloem. Vascular tissues are organised into Steles. Steles are central vascular cylinders found in the main axis of the vascular plants. Steles consist of xylem, phloem, pith( if present ) etc. They are delimited by pericycle from the cortex.
Types of Steles in Pteridophytes
1. Protostele
2. Siphonostele
3. Dictyostele
4. Eustele
To watch the video click the link below
Thanks for watching.
Please share, support and subscribe.
इस ट्रिक से आप Plant Macronutients के नाम आसानी से याद कर सकते हैं।
Watch video
Click the link below
