Porous AND NON-STRIATED BAsT FIBRES 
. Sarsaparilla root (Hypoderm), (Smilax officinalis, Kunth), 
. Unicorn root (Endoderm). 
Marshmallow root (Althea officinalis, L.). 
. Echinacea root (Echinacea angustifolia, D. C.). 
