PLATE 8 
CLUSTERED UNICELLULAR HAIRS 
1 and 2. European oak (Quercus infectoria, Olivier). 
3. Kamala (Mallotus philippinensis, [Lam.] [Muell.] Arg.). 
4. Witch-hazel leaf (Hamamelts virginiana, L.). 
5. Althea leaf (Althea officinalis, L.). 
