Epidermal characteristics and the venation pattern of leaves of eighteen selections of coffee

anatomia anatomie anatomy beverage crops coffea coffea arabica coffea canephora coffea liberica crops cultivos dicotiledoneas dicotyledons economic plants epiderme epidermis estoma faisceau vasculaire feuille haces vasculares hojas leaves plant anatomy plant vascular system plantas plantas estimulantes plantas para bebidas plante plante de culture plante stimulante plants rubiaceae rubiales sistema vascular de la planta stimulant crops stomata tejido vascular tissu vasculaire vascular bundles vascular tissues venas (planta)