10.22376/ijpbs.2019.10.1.p1-12 Volume 8 Issue 1 2017 (January - March) A survey was carried out to determine the arbuscular mycorrhizal status in some common medicinal herbs of Acanthaceae family like, lessThan i greaterThan Andrographis paniculata lessThan /i greaterThan (Burm.f.) Wall.ex Nees, lessThan i greaterThan Hygrophila auriculata lessThan /i greaterThan (Schumacher) Heine, lessThan i greaterThan Barleria lupulina lessThan /i greaterThan Lindley, lessThan i greaterThan Justicia adhatoda lessThan /i greaterThan L. From Grid-line intersect method it was evidenced that all the plants under investigation were colonized by the arbuscular mycorrhizal fungi as arbuscules were present in the roots. The percentage of mycorrhizal colonization was highest in the roots of lessThan i greaterThan Barleria lupulina lessThan /i greaterThan Lindley (49.5%), followed by lessThan i greaterThan Hygrophila auriculata lessThan /i greaterThan (Schumacher) Heine (27%), lessThan i greaterThan Andrographis paniculata lessThan /i greaterThan (Burm.f.) Wall.ex Nees (21%), and lowest in lessThan i greaterThan Justicia adhatoda lessThan /i greaterThan L. (14%). Variations noticed in root infection and spore density were statistically considerable. The arbuscular mycorrhizae fungi (AM) which were observed in the current study typically belong to the genus lessThan i greaterThan Glomus lessThan /i greaterThan . TAMAL MONDAL AND SIKHA DUTTA Vesicular arbuscular mycorrhizae (VAM), arbuscular mycorrhizae (AM), Glomus, Andrographis paniculata (Burm.f.) Wall.ex Nees, Hygrophila auriculata (Schumacher) Heine, Barleria lupulina Lindley, Justicia adhatoda L. 137-142