All of these images are the transverse section of Nephrodium.
[IMAGE: https://images.ecency.com/DQmVK6HzkHxn1ukYENuqT3tPrbNuRErds8Q6ddQ3A7qihM9/img_20221101_wa0002.jpg]
This is the vascular bundle of the pteridophyte Nephrodium. Vascular bundle contains xylem and phloem. Vascular bundle is present in the mid rib.
[IMAGE: https://images.ecency.com/DQmSoXHTP5pwqBZJAFMgaWRoHe9kXg3erKTUZPpWjp1v8FZ/img_20221101_wa0003.jpg]
This is the sorus of Nephrodium which contains many sporangia and the sporangia contains spores. Spores are the product by which Nephrodium reproduces asexually.
[IMAGE: https://images.ecency.com/DQmSdoTFF1MfAUzdjrzgaXsa3nYsDj6jy6YEfDTsPHfmDYT/img_20221101_wa0005.jpg]
[IMAGE: https://images.ecency.com/DQmb6E9Ni1tBAM7Cujq767FUUAc8fycrtNjKMxwnhis9xad/img_20221101_wa0007.jpg]
[IMAGE: https://images.ecency.com/DQmeGGtDv7XYKEhec2dcXJRSSkCksZK4jVYdSY4AW2tWs61/img_20221101_wa0004.jpg]
The whole transverse section.