On costa variation in leaves of fossil permian protoshagnalean mosses to their different developmental stages. A previously unknown morphotypes without
costa and with very short
costa Synthesis of [1,2,3]Triazolo[1,5-a]quinoline-3-carboxamides Promoted by Organocatalyst and Base-carbonyl phenylazides in dimethylsulfoxide as solvent at 70 °
C for 2 h. The synthetic protocol is ample, which thirteen