venation
特殊用法arcuate venation1.■弧曲脉序campylo-dromous venation1.■弧状脉序closed venation1.■闭锁脉序hypothetical wing venation1.■假设脉序leaf venation1.■叶脉序netted venation1.■网状脉序open venation1.■开放脉序palmatevenation1.■掌状脉序pinnatevenation1.■羽状脉序simplevenation1.■【植】 单脉wing venation1.■(翅)脉序