Multicellular Multiseriate Branched Hairs 



1. Apical hairs arnica (Arnica montana, L.). 



2. Basal hairs arnica {Arnica montana, L.). 



3. Apical hairs grindelia (Grindelia squarrosa, [Pursh] Dunal). 



4. Basal hairs grindelia {Grindelia squarrosa, [Pursh] Dunal). 



