Tissue
by Rachana Shrestha
1. Meristem
1.1. On the basis of cell division
1.1.1. Mass meristem
1.1.2. Plate meristem
1.1.3. Rib meristem
1.2. On the basis of origin
1.2.1. Primary meristem
1.2.1.1. Apical meristem
1.2.1.2. Intercallary meristem
1.2.1.3. Lateral meristem
1.2.2. Secondary meristem
2. Permanent tissue
2.1. Simple permanent tissue
2.1.1. Parenchyma
2.1.2. Collenchyma
2.1.3. Sclerenchyma
2.2. Complex permanent tisse
2.2.1. Phloen
2.2.2. Xylem
2.3. Secretory or excretory tissue
2.3.1. Glandular tissue
2.3.2. Lactiferous tissue