18.Leaves basal and cauline, alternate, rarely opposite or whorled, simple or variously compound, palmately nerved, rarely penninerved, with or without stipules.
19.A relationship between the accepting powers of sub logarithmic space bounded two way alternating pushdown automata with and without 1 inkdot is investigated.
20.An alternate procedure is to soak the affected areas in an iced 0.13% water solution (1:750) of Zephiran chloride (benzalkonium chloride solution, NF).