An anatomical investigation on Asteraceae family at Rajshahi Division, Bangladesh

TLDR: Anatomical investigation of the family Asteraceae (Compositae) growing throughout the Rajshahi Division situated in the northern part of Bangladesh was carried out, finding stomata were found to be present both on the upper and lower surface in 33 species and only onLower surface in 3 species.

Abstract: Anatomical (especially stomata and trichome) investigation of the family Asteraceae (Compositae) growing throughout the Rajshahi Division situated in the northern part of Bangladesh was carried out A total of 36 species under 29 genera of the family Asteraceae were collected and identified Among the recorded species, both anomocytic and anisocytic stomata were found in 21 species; anomocytic stomata in 10 species; anisocytic stomata in 3 species; anomocytic and paracytic stomata were found in 1 species; anomocytic, anisocytic and paracytic stomata were found in 1 species Out of the 36 species, stomata were found to be present both on the upper and lower surface in 33 species and only on lower surface in 3 species Three types of trichomes, ie nonglandular multicellular, non-glandular unicellular and glandular multicellular trichomes were recorded Nonglandular multicellular trichome was found in 25 species, non-glandular unicellular in 1 species and glandular multicellular trichome was found in 1 species Trichomes were absent in rest of the species Anatomical characters are importance for systematic studies