ABSTRACT

Fig. 1.6 The photographs of fluorescing secretory stinging hair of Urtica dioica (A, B) and its fluorescence spectra (C) measured along the trichome as shown on scheme (D). The fluorescing drop of the secretion is clearly seen at the tip of the empty hair (A). Adopted from Roshchina e t al., (1997a; 1998a).