孢子异型:指植物产生两种大小不同的孢子: 小孢子和大孢子.Heterospory The production of two different sizes of spore: microspores and megaspores.一种温室, 尤指(植物园中)将植物摆放得很美观以供观赏的暖房.A greenhouse, especially one which plants are arranged aesthetically for ...