siphonostele
/ˈsīfənəˌstēl/ /sīˈfänəˌstēl
/noun Botany
A stele consisting of a core of pith surrounded by concentric layers of xylem and phloem.In anatomical cross section, the stem of Lepidodendron displays an exarch siphonostele surrounded by secondary xylem in ranks....
- The node cross section of Equisetum looks quite different: the siphonostele is complete and leaf traces emerge from the solid vascular cylinder only at these locations.
- Use the three-dimensional diagram to understand how a leaf gap relates to the vascular cylinder of a siphonostele.
- beingness
- be in good company
- be in good (or bad) odour with
- be in (on) the secret
- be in (or of) two minds
- be in (or out of) luck
- be in (or out of) one's element
- be in (or out of) the frame
- be in over one's head
- be in pictures
- be in someone's debt
- be in someone's good (or bad) graces
- be in something for the long haul
- be in stays
- be in the doghouse
- be in the know
- be in the majority
- be in the market for
- be in the money
- be in the process of doing something
- be in the right
- be in the same boat
- be in the wars
- be in with a chance
- beira