Fig. 2From: Biology of Nicotiana glutinosa L., a newly recorded species from an archaeological excavation site in EgyptMicrographs of leaf surfaces of Nicotiana glutinosa under light microscope (A): A1 glandular trichome with two secretory cell heads, A2 with four cell heads, A3 lower epidermis, and A4 upper epidermis. SEM micrographs (B), upper epidermis B1 and B3, and lower epidermis B2 and B4Back to article page