velamen

The exodermis cell wall possesses the highest auto-fluorescent intensity whereas that of velamen the lowest.

自发荧光强度以外皮层最高，根被最低。

The observation on the microstructure of six orchids demonstrated that they have the typical orchidaceous roots with velamen and thick cortical tissue.

本文对密花石斛等六种兰科植物根显结构进行了比。

Ligeramente volteado a estribor,de su arboladura intacta colgaban las piltrafas escuálidas del velamen, entre jarcias adornadas de orquídeas.

帆船左舷侧，完好无损桅樯上，在装饰成兰花绳索之间，悬挂着肮脏帆幅破片。