1. The outer layer of apical meristem, from which the epidermis is formed. 
   表皮原顶端分生组织的外层，表皮就是从这里形成的
2. a family of smut fungi having a simple promycelium bearing the spores in an apical cluster. 
   腥黑粉菌一科特点是简单先菌丝顶上丛生孢子。
3. type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and apical sporangia. 
   裸蕨科的模式属；古生代植物，为小而坚韧的草木，具地下根状茎和顶生的孢子囊群。
4. pick mushrooms; pick flowers. 
   采摘蘑菇；采摘花朵。
5. Of or relating to a type of glandular secretion in which the apical portion of the secreting cell is released along with the secretory products. 
   顶浆分泌的，泌离的分泌细胞的顶端部分与分泌物一起脱离的腺体分泌的，与其相关的

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