Secretory Structures of Plant Tissues | Essay | Plant Anatomy | Botany
In this essay we will discuss about the external and internal secretory structures of plant tissues. Essay # 1. External Secretory Structures of Plant Tissues: External surfaces of the plant bear several secretory structures of epidermal origin or epidermal derivatives or emergences from deeper tissues. These include glands, glandular trichomes, nectaries, osmophores, hydathodes and salt glands. a. Glandular Trichomes: The [...]