| Answer | Crossword Clue |
|---|---|
| siphonosteles | A stele consisting of a core of pith surrounded by concentric layers of xylem and phloem |
| siphonostele | A stele consisting of a core of pith surrounded by concentric layers of xylem and phloem |
| protostele | a stele in which the vascular tissue forms a solid core, with centrally placed xylem surrounded by phloem |
| protosteles | PROTOSTELE, a stele in which the vascular tissue forms a solid core, with centrally placed xylem surrounded by phloem |
