dichotomy
特殊用法bostrychoid dichotomy1.■螺状二歧分枝式cincinnal dichotomy1.■蝎尾状二歧式cruciate dichotomy1.■十字形二歧分枝式equal dichotomy1.■等二歧式false dichotomy1.■假二叉分枝式, 假二歧式flabellate dichotomy1.■扇形二歧分枝式helicoid dichotomy1.■螺形二歧式scorpioid dichotomy1.■蝎尾状二歧分枝式sympodial dichotomy1.■合轴二歧式